Ecology/Matter cycles

Front

The diagram below shows the cycling of nutrients in an ecosystem.
The removal of which group would cause an immediate decrease in the amount of energy flowing through the system?

Back

Producers

Front

An organism that produces its own food supply from inorganic compounds is called a(an)

Back

autotroph

Front

What is an ecological model of the relationships that form a network of complex interactions among organisms in a community from producers to decomposers?

Back

food web

Front

What is the term for each step in the transfer of energy and matter within a biological community?

Back

trophic level

Front

Symbiotic relationship in which both organisms benefit

Back

Mutualism

Front

What does a food web represent?

Back

All connections of energy flow throughout all organisms in a habitat.

Front

Diagram that shows the energy available to each trophic level in an ecosystem; 10% is passed on to upper levels, the rest is lost as heat

Back

energy pyramid

Front

Members of a species in a defined area

Back

population

Front

Non-living factor that affects an ecosystem

Back

abiotic factor

Front

Organisms that break down and absorb nutrients from dead organisms

Back

decomposer