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