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summer science 2 7th
| Question | Answer |
|---|---|
| part of the earth that supports organisms. | biosphere |
| study of interactions among organisms and between organisms and the environment. | ecology |
| all the nonliving features of the environment that help determine which species can survive in the area. | abiotic factor |
| living or once-living features of the environment. | biotic factor |
| all the individuals of one species that live in the same area. | population |
| groups of populations that interact with each other in a given area. | community |
| a biotic community and the abiotic factors that affect it. | ecosystem |
| size of a population that occupies an area of limited size. | population density |
| any biotic or abiotic factor that restricts the number of individuals in a population. | limiting factors |
| the largest number of individuals an environment can support and maintain over a long period of time. | carrying capacity |
| an organism that preys on and consumes animals | predator |
| an organism caught or hunted for food by another organism. | prey |
| organism that cannot make its own food. | consumer |
| organism that can make food. | producer |
| organism, such as fungi or bacteria, that consumes wastes and dead organisms. | decomposer |
| any close relationship between two or more different species. | symbiosis |
| a symbiotic relationship that benefits both species. | mutualism |
| a symbiotic relationship that benefits one partner but does not harm or help the other. | commensalism |
| a symbiotic relationship that benefits the parasite and does definite harm to the parasite’s host. | parasitism |
| physical location where an organism lives. | habitat |
| role of an organism in the ecosystem. | niche |
| model used to describe a series of overlapping food chains. | food web |
| model used to describe the transfer of energy in an ecosystem. | ecological pyramid |
| transfer of nitrogen from the atmosphere to plants and back to the atmosphere or directly into plants again. | nitrogen cycle |
| process in which some types of bacteria in the soil change nitrogen gas into a form of nitrogen that plants can use. | nitrogen fixation |
| destruction and cutting down forests resulting in increased atmospheric Carbon Dioxide levels. | deforestation |
| the rapid depletion of plant life and the loss of topsoil in the desert. | desertification |
| anything that has mass and takes up space. | matter |
Created by:
levis
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