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Ecosystems Vocab5th
Ecosystems Vocabulary Study Guide
| Question | Answer |
|---|---|
| photosynthesis | process by which green plants and blue-green algae, in the presence of light, make food out of carbon dioxide and water |
| consumer | consumer an organism in a community that must eat to get the energy it needs because it cannot make its own food |
| food chain | the ways in which the organisms in an ecosystem interact with one another according to what they eat |
| aquatic | living in water |
| population | all the individuals of the same kind living in the same environment |
| pollution | waste products that damage an ecosystem |
| water pollution | conditions that exist when harmful materials have entered the water and made it harmful to organisms |
| terrestrial | of or related to the land |
| producer | an organism that makes its own food (through photosynthesis) |
| scavenger | an organism that eats dead or decaying matter |
| organism | a living thing |
| ecosystem | a community and its physical environment together |
| individual | a single organism in an environment |
| pollutant | anything that spreads harmful or unpleasant substances into the air, water, or ground |
| ecology | the science concerned with the relationships among living things and their environment |
| respiration | the process by which an organism takes in and processes oxygen and releases carbon dioxide |
| community | all the populations of organisms living together in an environment |
| habitat | a place in an ecosystem where a population lives |
| decomposer | consumer that breaks down the tissues of dead organisms |
| fossil fuel | a fuel formed from the remains of once-living organisms |
| food web | shows the interactions among many different food chains in a single ecosystem |
| acid rain | precipitation resulting from pollution condensing into clouds and falling to Earth |
| environment | everything that surrounds an organism and influences it |
| decay | the process where bacteria and other decomposers break down dead things |
| biome | large ecosystem with its own climate, soil, plants and animals--found in different parts of the world (six major ones) |
| adapt | change; to change in order to fit a new situation or use |
| niche | the role each population has in its habitat |
| herbivore | an animal that eats only plants |
| carnivore | an animal that eats meat (other animals) |
| omnivore | an organism that eats both plants and meat |
| tropical rain forest | warm all year, very wet (rains almost every day); has a wide variety of plant and animal species; found near the equator |
| tundra | long cold winters, short cool summers; little precipitation (dry); treeless; found in polar regions; little variety of plant and animal life |
| desert | can be hot or cold (depending on location); very dry |
| temperate forest | moderate temperature and rainfall; four different seasons of weather; also called deciduous forest |
| taiga | long, cold winters, and short, mild, wet summers; may also called coniferous forest |
| grasslands | hot summers, cold winters; light precipitation; may also be called prairies; mostly grasses grow with few trees |
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