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46 Cards in this Set
- Front
- Back
Ecosystems
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A community + nonliving factors with which the community interacts
Energy flows through ecosystems in food chains |
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Abiotic Factors
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Temperature
Water Salinity Sunlight Rocks/soil |
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Climate
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Abiotic factors: temperature, precipitation, sunlight, and wind
Macroclimate vs. microclimate Global climate patterns Proximity to bodies of water or other topographic features create regional climatic variation. |
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Biomes
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Major groups of plants and animals that occur over a wide geographic area
Have distinctive characteristics due to combinations of rainfall and temperature |
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Terrestrial Biomes
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Terrestrial biomes can be characterized by distribution, precipitation, temperature, plants, and animals
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Tropical Rain Forest
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High rainfall
Constant temperatures Stratification of forest Competition for light High number of species |
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Coniferous forest
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Taiga
Cold temperatures Freezing winter Migratory birds/mammals |
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Temperate Deciduous Forest
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Broadleaf forest
Shed leaves in winter Freezing winter |
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Tundra
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Short growing season
Soils often frozen Dwarf plants |
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Tundra
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covers expansive areas of the Arctic; alpine tundra exists on high mountaintops at all latitudes
Winters are long and cold while summers are relatively cool; precipitation varies |
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Permafrost
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a permanently frozen layer of soil, prevents water infiltration
Vegetation is herbaceous (mosses, grasses, forbs, dwarf shrubs and trees, and lichen) and supports birds, grazers, and their predators |
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Chaparral
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Seasonal rainfall
Hot summers, cool the rest of the year Shrubs and small trees, grasses Drought and fire tolerant |
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Grassland
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Seasonally high rainfall (dry winters/wet summers)
Cold winters/ hot summers Grasses and forbs Drought and fire adaptations grazers |
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Savanna
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Seasonal rainfall
Warm year-round Herbivores Grasses and thorny trees |
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Desert
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Precipitation is low and highly variable, generally less than 30 cm per year; deserts may be hot or cold
Desert plants are adapted for heat and desiccation tolerance, water storage, and reduced leaf surface area Common desert animals include many kinds of snakes and lizards, scorpions, ants, beetles, migratory and resident birds, and seed-eating rodents; many are nocturnal |
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Aquatic Biomes
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physical environment,
chemical environment, geological features, photosynthetic organisms, and heterotrophs |
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Lakes
Standing bodies of water |
Oligotrophic lakes are nutrient-poor and generally oxygen-rich
Eutrophic lakes are nutrient-rich and often depleted of oxygen if ice covered in winter Rooted and floating aquatic plants live in the shallow and well-lighted littoral zone |
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Estuaries
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An estuary is a transition area between river and sea
Salinity varies with the rise and fall of the tides Estuaries are nutrient rich and highly productive An abundant supply of food attracts marine invertebrates and fish |
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Characteristics of Fishes
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Gills
Vertebral column (bone or cartilage) Single loop blood circulation A nutritional deficiency |
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Jawless Fish
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Lamprey
Hagfish |
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CARTILAGINOUS FISHES
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Cartilage not bone for skeleton
Sharks, skates, & rays |
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CLASS AMPHIBIA
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FROGS & TOADS
SALAMANDERS Legs Cutaneous respiration Lungs Pulmonary veins Partially divided heart |
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SALAMANDERS
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Tailed amphibia
Carnivorous larvae & adult |
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Anura
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Frogs & Toads
~3450 species No tail Herbivorous larvae Carnivorous adult |
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Reptiles
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Amniotic egg
Dry skin Thoracic breathing (expand/contract rib cage) |
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Class Aves
Birds |
feathers
flight skeletons |
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Class MammaliaMammals
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Mammary glands
Hair Middle ear (3 middle ear bones) |
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3 Reproduction Patterns
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Egg-Laying Monotremes
Pouched Marsupials Placental Mammals |
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Phylum Porifera: Sponges
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No true tissues
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Phylum Cnidaria:
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Jellyfish & Hydra
Radial Symmetry |
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Phylum Platyhelminthes: Solid Worms
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Bilateral Symmetry
No Body Cavity Flatworms, Flukes, and Tapeworms |
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Advent of Body Cavity
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Aids in
Circulation Movement Organ function |
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Pseudocoelomate
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Nematoda (Roundworms)
Rotifera (Rotifers) |
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Phylum: Molluscaclams, snails
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Coelom
No segmentation Includes: Gastropods (snails and slugs) Bivalves Cephalopods (octopuses and squid) |
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Segmentation
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series of similar segments that make up a body
In Annelids, Arthropods, & Chordates |
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Phylum Annelida:Segmented worms
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Coelom
Segmentation Includes: earthworms, polychaetes, & leeches |
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Phylum Arthropoda:Crustaceans and insects
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Segmentation
Jointed appendages Exoskeleton |
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Chelicerates
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Trilobites
Horseshoe crabs Spiders Ticks & mites Scorpions |
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Mandibulate Arthropods
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Crustaceans
Millipedes & centipedes Insects |
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Protostome
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Protostome—an animal in whose embryonic development exhibits spiral cleavage and the mouth forms from the blastopore. Coelom forms from mesoderm
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Deuterostome
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an animal in whose embryonic development exhibits radial cleavage and the anus forms from the blastopore. The coelom forms from outpouchings of the archenteron
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Phylum Echinodermata
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Deuterostomes
Endoskeleton |
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WHAT DEFINES A CHORDATE?
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NOTOCHORD
PHARYNGEAL GILL SLITS NERVE CORD POSTANAL TAIL |
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Nonvertebrate Chordates
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NO CRANIUM
NO VERTEBRAE tunicates, sea squirts |
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Vertebrate Chordates
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Backbone
Cranium (head with a skull and brain) |
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Vertebrates
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FISH
AMPHIBIANS REPTILES BIRDS MAMMALS |