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178 Cards in this Set
- Front
- Back
layer of earth that supports life, including land, sea and air
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biosphere
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center of the earth, consisting of molten ore
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core
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hard, outer covering of the earth--4-22 miles thick
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crust
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movement of the earth's crust
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earthquake
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middle layer of the earth
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mantle
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the blanket of air surrounding a heavenly body
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atmosphere
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the outermost layer of atmosphere
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exosphere
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cold middle layer of air
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mesosphere
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protective layer of condensed oxygen (O3, which has a peculiar smell) in the stratosphere
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ozone layer
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globe
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sphere
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second layer of air above the earth's surface
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stratosphere
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the upper layer of thin air which contains many electrically charged atoms and where temperatures increase with altitude
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thermosphere
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the layer of air closest to the earth's surface
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troposphere
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to wear away or break down into small pieces (L. erodere, to wear away)
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erosion
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any evidence of life from the past (L. fossum, to dig)
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fossil
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rock which has been changed by heat and pressure (Gk. meta=over + morphe=shape)
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metamorphic rock
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rock made up of layers of materials settled underwater (L. sedere=settle)
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sedimentary rock
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the overall weather pattern of an area (Gk. klima=slope)
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climate
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an imaginary line dividing the earth into the northern and southern hemispheres (L. aequus=equal)
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equator
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half of the earth (Gk. hemi=half + sphaira=globe)
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hemisphere
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how much moisture or water there is in the air (L. humidus=moist)
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humidity
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amount of rain or snow (L. praeceps=headlong)
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precipitation
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how hot or cold it is (L. temperare=to moderate)
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temperature
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the condition of the atmosphere at any given time or place (O.E. weder=weather)
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weather
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the smallest piece of any substance that can be identified as that substance (L. moles=a mass)
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molecules
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vacant or empty space (L. vacuus=empty)
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vacuum
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"higher" cloud (L. altus=high)
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alto-
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"wispy" (delicate, fleecy, feathery clouds made up of ice crystals, "mares' tails" high altitude) (L. cirrus=curl of hair)
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cirrus or cirro-
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"puffed up" (dense puffs, mounds or towers of clouds with flat bases (L. cumulus=heap)
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cumulus or cumulo-
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"dark rain" (dense rain or snow cloud) (L. numbus=a cloud)
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nimbus or nimbo-
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"layer" (straight layers of low altitude fog-like clouds) (L. sternere=to spread out)
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stratus or strato-
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energy that travels in waves, mostly from the sun, and travels very fast (186,200 miles per second) (O.E. leoht=light)
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light
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present in all places at the same time (L. omnis=all + praasens=being present)
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omnipresent
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the green color in plants which traps sunlight and makes photosynthesis possible (Gk. chloros=green + phyllon=leaf)
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chlorophyll
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sticking together (L. cohaerere=to stick together)
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cohesion
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the process by which a plant creates carbohydrates (Gk. photo=light + syn=together + thesis=a placing)
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photosynthesis
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to make fruitful or able to reproduce (L. fertilis=fruitful)
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fertilize
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the part of the plan that produces seeds (L. flox=flower)
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flower
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the colored flower-leaf (Gk. petalon=thin plate)
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petal
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the seed-bearing organ of a flower (L. pistillum=a pestle)
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pistil
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the fertilizing dust in a flower (L. pollen=fine flour)
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pollen
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the part of the plan that seeks nourishment for the plant; generally grows underground (O.E. wyrt=root)
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root
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very simple photosynthetic plants found in water or damp places, containing chlorophyll and other pigments (colors) and having no true roots, stems, leaves or seeds (L. alga=seaweed)
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algae
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a very simple plant that does not produce food by photosynthesis, but feeds on living or dead plants or animals; it does not have true roots, stems, leaves or chlorophyll, and reproduces by means of spores (L. fungus=mushroom or fungus)
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fungus
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cells sent out by bacteria, fungi, algae, mosses, ferns and so forth, capable of developing into new adult plants (Gk. spora=a sowing)
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spores
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a plant with a woody trunk (O.E. treow=a tree)
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tree
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trees that shed their leaves in autumn, generally broadleaf hardwoods (L. decidere=to fall down)
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deciduous trees
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trees that keep their leaves the year round, generally needle-leaved conifers (cone-bearing trees)
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evergreen trees
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trees in areas that are warm all year, usually broadleaf evergreen trees
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tropical trees
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an area, either cold or hot, which lacks moisture most of the year (L. deserere=to abandon)
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desert
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a hot region with distinct wet and dry seasons
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monsoon region
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the 25% of the earth's land surface over 3,300 feet above sea level, with plant and animal life varying according to altitude
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mountain region
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refers to the North (Arctic) and South (Antarctic) Poles (Gk. polos=a pivot)
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polar
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a warm area with wet and dry seasons, scrub type plants and only scattered trees
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savanna
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coniferous (cone-bearing) forest below the Arctic region (Russ. taiga=coniferous forest)
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taiga
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a deciduous forest in a region that has four seasons
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temperate forest
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a plan of grasses where not enough rain falls to sustain a forest, but which has more rain than a desert
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temperate grassland
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a hot area with heavy (59-78 inches) rainfall, teeming with plant and animal life
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tropical rain forest
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treeless plains in the Arctic Circle (Russ. tundra=marsh)
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tundra
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firm outer skeleton (Gk. exo=outside + skeletos=dried up)
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exoskeleton
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a large group of invertebrate animals which, in the adult stage, have 3 body segments, including a head, thorax, and abdomen, 3 pairs of legs and may have 2 pairs of wings (L. in=in + secare=to cut)
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insect
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creatures without a backbone (vertebrae) (L. in=not + vertebra=spine)
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invertebrates
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the immature "baby" form of animals that changes structurally to become adult through complete metamorphosis (L. larva=ghost)
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larva
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the process of change during the growth and development of insects (Gk. meta=over + morphe=shape)
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metamorphosis
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the immature form of an insect with incomplete metamorphosis (Gk. nymphe=bride)
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nymph
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an insect in the non-feeding, resting stage between the larval and adult form (L. pupa=girl, doll)
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pupa
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a family of animals which have 2 main body parts, 4 pairs of legs, and which breathe with book lungs (Gk. arachne=a spider)
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arachnids
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lungs characteristic of arachnids, which have tiny compartments like the pages of a book
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book lungs
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the head united with the thorax which form one section of the spider's body (Gk. kephale=the head + thorax=chest cavity)
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cephalothorax
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breathing holes in the abdomen of spiders and insects, and another name for the blow hole of whales (L. spirare=to breathe)
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spiracles
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having a variable body temperature and activity level that changes according to the temperature of the surroundings
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cold-blooded
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cold-blooded water animal with a backbone, fins, scales and gills (O.E. fisc=fish)
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fish
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the breathing organ of water animals whcih takes oxygen out of the water
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gills
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breathing holes in the abdomen of spiders and insects, and another name for the blow hole of whales (L. spirare=to breathe)
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spiracles
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having a variable body temperature and activity level that changes according to the temperature of the surroundings
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cold-blooded
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a thin-walled "sack" found in most fish which is used to enable fish to float at varying depths
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swim bladder
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creatures with backbones (L. vertebra)
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vertebrates
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internal, sponge-like breathing chamber of vertebrate land creatures (O.E. lungen=lung)
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lungs
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a cold-blooded vertebrate, with lungs for breathing air, dry, scaly covering for body, and a 3-chambered heart (except for alligator/crocodile, 4-chambered heart). Most live on land and lay eggs with tough, leathery shell and crawl on bellies or short legs (L. reptilis=creeping)
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reptile
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air-filled cavities that reach into almost every part of a bird's body, with connectinos to the lungs
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air sacs
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a warm-blooded vertebrate animal, having feathers, 2 wings (most can fly), 2 legs, scaly feet, and a 4-chambered heart with fastest heartbeat of all animals. Its lungs breathe air into air sacs and hollow bones. It has no teeth, but a beak, crop and gizzard and reproduces by laying hard-shelled eggs (O.E. brid)
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bird
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a sac-like enlargement in a bird's food tube, where food is stored before digesting
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crop
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a bird's muscular second stomach, where food is ground after being partially digested in the first stomach
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gizzard
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having the ability to maintain a constant internal body temperature
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warm-blooded
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the muscles dividing the chest cavity from the abdominal cavity (Gk. dia=through + phragma=fence)
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diaphragm
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a warm-blooded vertebrate covered with fur or hair, breathing air with lungs and a diaphragm, having a 4-chambered heart, and the largest and most developed brains. The female has glands that produce milk to feed her young and most give birth to live young (viviparous) (L. mamma=mother)
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mammal
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a group of mammals in Australia which give birth to incompletely developed young, and then care for them several months in an external pouch (Gk. marsypion=pouch)
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marsupial
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an organ of blood vessels that supply food and air exchange for the babies developing inside female mammals (Gk. plakounta=flat cake)
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placenta
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dwelling, home (L. habitare=to dwwell)
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habitat
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a cold-blooded vertebrate that hatches and develops in the water, breathing with gills, and then changes into an air-breathing land animal as an adult (Gki. amphi=on both sides + bios=life)
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amphibian
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dormant or inactive state, especially as in winter (L. hibernare=winter)
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hibernation
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a state of inactivity, especially during dry summer (L. aestus=summer)
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estivation
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a bony structure growing on the head of a male deer (L. ante=before + oculus=the eye)
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antlers
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a hard formation growing on the head of some goats, cows and other animals
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horns
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strong bands of tissues that hold bones together (L. ligare=to bind)
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ligaments
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someone who studies plant and animal life of ancient times (the fossil record) (Gk. palaios=ancient + logos=word)
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paleontologist
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a band of fibrous tissue which can produce movement (L. musculus=muscle)
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muscles
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the framework of the body (Gk. skeletos=dried up)
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skeleton
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meat-eater (L. carnis=flesh + vorare=devour)
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carnivore
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balanced relationship between the plants and animals in a given area (Gk. ekloge=house + L. system=organized whole)
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ecosystem
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plant-eater (L. herva=grass + vorare=devour)
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herbivore
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something that nourishes (L. nutrire=nourish)
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nutrient
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plant- and animal-eater (L. omnis=all + vorare=devour)
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omnivore
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the predominant influence (L. dominari=to be master)
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dominant
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able to reproduce (L. fertilis=fruitful)
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fertile
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the smaller, back portion of the brain that controls voluntary muscles and balance (L. cerebrum=the brain)
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cerebellum
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the largest part of the brain, the center of intelligence and movement (L. cerebrum=the brain)
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cerebrum
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inborn ability to do certain actinos without being taught
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instinct
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lowest portion of the brain that controls involuntary breathing and heartbeat (L. medulla=marrow)
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medulla
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to go from one place to another in search of warmer climates for breeding and food (L. migrare=to go)
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migration
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center for smell (L. olere=to smell + facere=to make)
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olfactory bulb
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pleats of tissue that carry extra blood (as to an eye of a hawk)
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pecten
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gland which controls growth and other functions
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pituitary gland
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membrane in cat's eye that reflects light like a mirror (L. pituita=mucus)
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tapetum
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a sieve-like bone structure in the mouth of one group of whales that allows the whale to strain out the tiny shrimp, plankton and krill from the ocean water (L. balaena=whale)
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baleen
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threatened with extinction
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endangered
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no living specimens or survivors (L. extinctus=dead, extinguished)
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extinct
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the second group of whales which have teeth, and eat fish and other sea creatures
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toothed (odontoid)
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Whales: humpback (males sing), fin (lives 70+ years, 2 tons at birth), orca (live in pods), blue (largest creature on earth, endangered), right (no dorsal fin, endangered), bowhead (hunted by eskimos, Arctic, endangered), sperm (can dive 3000 feet and stay down 90 minutes), gray (migrate 16,000 miles)
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whales
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the female reproductive cell (L. ovum=an egg)
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ovum
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to be with child (L. praegnans=with child)
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pregnant
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the male reproductive cell (Gk. sperma=seed)
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sperm
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the eternal part of man (L. spirare=breathe)
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spirit
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the womb, the female organ where a baby develops before birth (L. uterus=womb)
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uterus
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the covering of the cell, which acts like a "guarded wall", controlling what enters or leaves the cell (L. membrana=parchment)
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cell membrane
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the simplest unit of structure of living things (L. cella=small room)
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cell
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rod-shaped structures that funciton like magnets during cell division
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centrioles
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contain the cell's genetic information (Gk. chroma=color + soma=a body)
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chromosomes
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an arrangement of nucleic acids that contain the genetic master plan
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DNA (deoxyribonucleic acid)
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sheets of membrane that provide transportation for protein within the cell
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endoplasmic reticulum
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a group of flattened membrane sacs that package protein
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Golgi body
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the garbage disposal system of the cell, which dispose of invading materials and bacteria
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lysosomes
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the cell's power plants that produce the cell's energy
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mitochondria
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the control center of the cell which controls and directs all the cells activities
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nucleus
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strong fibers that connect the bones (L. ligare=to bind)
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ligaments
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the soft center of bones (O.E. meary=marrow)
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marrow
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the framework of the body (Gk. skeletos=dried up)
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skeleton
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to prepare food to be absorbed into the blood (L. digerere=to arrange)
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digestion
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the tube from the mouth to the stomach
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esophagus
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small sac which stores bile produced by the liver (O.E. gaella=gall + blaedre=a blister)
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gall bladder
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the bowels, the tubing from the stomach to the anus
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intestines
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the organ which secretes bile
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liver
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the digestive gland behind the stomach
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pancreas
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rippling contractions of the muscles in the intestines
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peristalsis
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lower portion of the large intestines
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rectum
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the chief organ of digestion
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stomach
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blood vessels giong away from the heart
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arteries
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the red, slightly thick liquid that circulates in man and animals
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blood
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network of tiny blood vessels connecting arteries and veins
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capillaries
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a special muscle that pumps blood to all parts of the body
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heart
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the liquid part of your blood that carries the food to each cell
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plasma
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plate-shaped cells that help to seal off broken blood vessels
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platelets
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red blood cells, the part of the blood that carries oxygen to the cells and carbon dioxide away from the cells
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red corpuscles
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blood vessels going toward the heart
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veins
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white blood cells which serve to fight infection
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white corpuscles
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tiny air cells in the lungs
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alveoli
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the windpipe or tube in the throat which connects the mouth and nose to the lungs
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trachea
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self-governing
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autonomic
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fiber which sends or receives messages from the brain
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nerve
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part of the nervous system that controls involuntary vital functions in an energy-conserving way
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parasympathetic
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portion of the nervous system that controls involuntary vital functions and the "fight or flight" response
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sympathetic
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fatty tissue
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adipose tissue
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living layer of skin below the epidermis
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dermis
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outer layer of skin, made up of dead cells
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epidermis
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gland which produces thread-like growth
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hair follicle
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protective layer of tissue covering body
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integumentary
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cells which produce a greasy liquid
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oil gland
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cells which produce a greasy liquid
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sweat gland
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a muscular bag in the pelvis that collects the urine
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bladder
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tissues and organs that produce chemicals called hormones that control many functions inside your body (how much you grow, how the food you eat is digested and used) includes the pituitary, the thyroid, the parathyroid, reproductive organs, the adrenal and the pancreas
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endocrine system
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a pair of organs that excrete urine
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kidneys
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the tubes from the kidneys to the bladder
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ureter
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the yellow-colored liquid that contains water soluble wastes from the body
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urine
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muslces that extend or stretch out
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extensors
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muscles that flex or bend up
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flexors
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muscles which work without conscious thought
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involuntary muscles
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a band of fibrous tissue that can produce movement
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muscle
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muscles we can move at will
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voluntary muscles
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