Food Chains and Webs Part III

Front

What percentage of energy is typically transferred from one trophic level to the next?

Back

10%

Front

What is the primary source of energy for Earth's ecosystems?

Back

The Sun

Front

Which group has the largest population in a food web?

Back

Producers

Front

What term describes organisms that obtain their energy from other sources?

Back

Heterotrophs

Front

What is the primary role of sunlight in ecosystems?

Back

It drives photosynthesis.

Front

What are producers in a food chain?

Back

Organisms that create their own food through photosynthesis.

Front

What are primary consumers?

Back

Organisms that eat producers, such as herbivores.

Front

What are secondary consumers?

Back

Organisms that eat primary consumers, often carnivores.

Front

What role do decomposers play in an ecosystem?

Back

They break down dead organic matter and recycle nutrients.

Front

What is a food web?

Back

A complex network of feeding relationships among organisms in an ecosystem.