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81 Cards in this Set

  • Front
  • Back
abiotic factor
a nonliving part of a system
acid rain
rain that contains unhealthy amounts of acid
adaptation
a structure or behavior that helps and organism survive in its habitat
adult
a full grown animal or plant
amphibian
an animal that has a backbone and lives in water when it is young and on land when it becomes an adult
example: frog
angiosperm
a seed plant that produces flowers
arthropod
an animal that has a hard outer skeleton with legs and joints.
biome
a very large area of land with a certain kind of climate and certain kinds or organisms living it it
biotic factor
a living part of an ecosystem
camouflage
the shape, color, or pattern of an animal that helps it blend in with its surroundings
canopy
the trees that are suspended above the forest floor
carbon dioxide and oxygen cycle
the movement of carbon dioxide and oxygen between organisms and the air
carnivore
an animal that eats other animals
chloryphyll
a green substance in plant leaves that captures the energy in sunlight
classification
the groupings of organisms based on their similarities and differences
community
populations of different kinds of organisms that live in the same place at the same time
competition
the struggle of organisms against each other to get the same resource
compost
a mixture of soil and decayed material that provides nutrients for plants
coniferous forest
a forest biome with trees that keep their needlelike leaves for at least a few years
conservation
the wise use and protection of natural resources
consumer
an organism that gets energy by eating other organisms
deciduous forest
a forest biome with many kinds of trees that lose their leaves each autumn
decomposer
an organism that gets energy by feeding on dead materials and wastes
desert
a biome that has very little rain and few plants
ecosystem
all the living and nonliving things that interact with each other in an environment
embryo
a plant or animal in the earliest stage of development
environment
the surroundings that an organism lives in
endangered species
a species that could become extinct very soon if it is not helped by people
energy pyramid
a diagram or chart that shows the amount of energy passed on at each level of the food chain
extinction
the dying out of a species
fertile
describes soil that can support plant life
food chain
the path of food energy from one organism to another in an ecosystem
food web
the overlapping of food chains with different pathways for the flow of food energy in an ecosystem
forest floor
land that is covered with underbrush; located under the treetops in a forest
fungus
an organism that feeds on dead organisms or their wastes, cannot move on its own, and reproduces with spores
geotropism
the downward growth of a plant's roots and the upward growth of its stem; caused by gravity
germination
the sprouting of a plant from a seed
global warming
a rise in the earth's average worldwide temperature
grasslands
a biome where grasses, not trees, are the main plant life.
habitat
the environment where an organism lives
herbivore
an animal that eats only plant products
heredity
the passing of traits from the parents to its offspring
heterotrophy
an organism that cannot make its own food
hibernation
a deep sleeplike state where the animal's body processes slow down
humus
decaying plant and animal materials in the soil
inherited trait
a characteristic that is passed from parents to their offspring
instinctive behavior
a behavior that an animal inherits from its parents
invertebrate
an animal that does not have a backbone
kingdom
the largest grouping of organisms in scientific classification
learned behavior
a behavior that an animal develops by observing other animals or by being taught
life cycle
the stages of growth and development that an organism goes through in its lifetime
life science
the study of plants, animals, and all other living things. can also be called biology
mammal
an animal that has a backbone, hair or fur, beathes with lungs, gives birth to live babies, and feeds milk to its babies
march
a shallow body of still or slow-moving water that has plants growing in it.
microorganism
a living thing so small that it can only be seen by a microscope
moss
a kind of plant that does not have true roots, stems, or leaves; reproduces with spores
niche
the role that an organism plays in its habitat
nitrogen cycle
the movement of nitrogen between organisms and their surroundings
offspring
new organsims that come from parent organisms; babies
omnivore
an animal that eats both plants and animals
parasitism
a relationship between two different kinds of organisms in which one organism is helped and the other organism is hurt
photosynthesis
the process of using the energy from the sun to make food
phototropism
the turning of a plant's leaves toward sunlight
pollination
the transfer of pollen from the stamen to the pistil of a flower
population
all the organisms of the same species that live in the same place at the same time
predator
an animal that hunts, catches, and eats other animals
prey
an animal that is hunted caught, and eaten by another animal
producer
an organism that makes its own food
reptile
an animal that has a backbone, dry leathery skin or scales, has lungs to breathe air, and lays eggs with leathery shells; can also give birth to live babies
roots
plant structures that hold a plant in place and take in water and nutrients from the soil
savanna
a kind of grassland
scavenger
a meat-eating animal that eats dead animals
species
a group of organisms of the same kind that can mate and produce offspring like themselves
swamp
a shallow body of still or slow-moving water that has plants growing in it
taiga
a biome with cool temperatures and many conifers (pine trees)
threatened species
a species that could become endangered if its numbers contine to decline
trait
a characteristic of an organism
tundra
a biome with cold temperatures and not much rain
vertebrate
an animal that has a backbone
water cycle
the change of water from one state to another as it moves between the earth's surface and its atmosphere
wetland
a biome where water and land meet, such as a marsh, swamp, or seasonal pond