Energy in Ecosystems Set 2

Front

What is a decomposer?

Back

A living organism that breaks down dead plants and animals, returning nutrients to the soil.

Front

Why are producers found at the base of the energy pyramid?

Back

Producers create all of the energy and therefore have the most energy of all trophic levels, beginning the flow of energy in an ecosystem.

Front

If a primary consumer receives 400 kJ of energy from a producer, how much energy will the secondary consumer receive?

Back

40 kJ.

Front

Which level of the energy pyramid contains plants?

Back

Level D.

Front

Which group is not represented in a food web?

Back

Decomposers.

Front

What role do producers play in an ecosystem?

Back

They convert sunlight into energy through photosynthesis, forming the base of the food chain.

Front

Define primary consumer.

Back

An organism that eats producers; typically herbivores.

Front

What is a trophic level?

Back

A step in the food chain or food web, representing the flow of energy from one level to the next.

Front

Explain the concept of energy transfer in an ecosystem.

Back

Energy transfer occurs when one organism consumes another, with only a fraction of energy passed to the next trophic level.

Front

What is the significance of decomposers in an ecosystem?

Back

Decomposers recycle nutrients back into the soil, making them available for producers.