Energy and Matter in Ecosystems Flashcards

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1
Q

food chain

A

model that links organisms by their feeding relationships

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2
Q

food web

A

model that shows the complex network of feeding relationships within an ecosystem

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3
Q

biomass

A

total dry mass of all organisms in a given area

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4
Q

energy pyramid

A

a diagram that compares energy used by producers

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5
Q

biomass pyramid

A

a diagram that compares the biomass of different trophic levels within an ecosystem

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6
Q

pyramid of numbers

A

a diagram that shows the number of individual organisms at each trophic level in an ecosystem

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7
Q

trophic

A

relating to feeding and nutrition.

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8
Q

reservoir

A

any location where cycling matter is stored

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9
Q

fossil fuel

A

a nonrenewable energy source formed from the remains of organisms that lived long ago

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10
Q

producer

A

(plants) an organism that produces organic compounds from simple substances such as sunlight, water, and carbon dioxide; an autotroph.

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11
Q

primary consumer

A

organisms that eat producers—plants or algae—and nothing else.

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12
Q

secondary consumer

A

organisms that eats primary consumers

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13
Q

tertiary consumer

A

organisms that eats primary and secondary consumers

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14
Q

decomposer

A

living things that get energy by eating dead animals and plants and breaking down wastes of other animals

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