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27 Cards in this Set
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The study of the interactions among living things and their surroundings |
Ecology
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A group of different species that live together in one area |
Community |
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Includes all the organisms as well as the climate soil water rocks and other nonliving things in a given area |
ecosystem |
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a major regional or global community of organisms |
biome |
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_________factors are living things such as plants animals fungi and bacteria |
biotic |
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_________factors are nonliving things such as moisture temperature wind sunlight and soil |
Abiotic |
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Is the assortment or variety of living things in an ecosystem |
biodiversity |
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A species that has an unusually large effect on its ecosystem |
keystone species |
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Organisms that get their energy from nonliving resources meaning they make their own |
producer |
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another name for producers |
autotrophs |
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Organisms that get their energy by eating other living or once living resources such as plants and animals. |
consumer |
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the process by which an organism forms carbohydrates using chemicals rather than light as an energy source |
Chemosynthesis |
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A sequence that links species by their feeding relationships |
food chain |
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Organisms that only eat plants |
herbivores |
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Organisms that only eat animals |
carnivores |
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organisms that eat both plants and animals |
omnivores |
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organisms that eat detritus, or dead organic matter |
detritivores |
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detritivores that break down organic matter |
decomposers |
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a consumer that primarily one specific organism or feeds on a very small number number of organisms |
specialist |
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consumers that have a varying diet |
generalist |
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levels of nourishment on a food chain |
trophic levels |
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A model that shows the complex network of feeding relationships and the flow of energy within and sometimes beyond an ecosystem |
food web |
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this is also known as the water cycle, its the circular pathway of water on earth from the atmosphere to the surface below the ground and back |
hydrolic cycle |
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the movement of a particular chemical through the biological and geological or living and nonliving parts of an ecosystem |
biogeochemical cycle |
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certain types of bacteria convert gaseous nitrogen into ammonia |
nitrogen fixation |
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a measure of the total dry mass of organisms in a given area |
biomass |
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a diagram that compares energy used by producers, primarily consumers and other trophic levels |
energy pyramid. |
