Energy in Ecosystems

Front

What happens to most of the energy when predation occurs?

Back

Most is lost in the form of heat and to other life processes.

Front

Which trophic level does yellowfin tuna fill in a food chain?

Back

Secondary consumer.

Front

Which biogeochemical cycle provides energy to the organisms in an ecosystem?

Back

Carbon cycle.

Front

What is a producer?

Back

An organism that uses the sun's energy to make its own food.

Front

If the producers in an ecosystem have 1,000,000 Calories, how much will the tertiary consumer get?

Back

1,000 Calories.

Front

What is the primary source of energy for ecosystems?

Back

The sun.

Front

Define a food chain.

Back

A linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What role do decomposers play in an ecosystem?

Back

They break down dead organisms and recycle nutrients back into the ecosystem.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence, while a food web is a complex network of interconnected food chains.

Front

What is biomass?

Back

The total mass of living matter in a given area or volume.