8.L.3 Ecology Review

Front

What is the primary source of energy for most food chains on Earth?

Back

The sun.

Front

Which level of a food chain has the most energy?

Back

Producers.

Front

What term describes the role of a species in its ecosystem, including how it meets its needs for food and shelter?

Back

Niche.

Front

Which type of organism occupies the trophic level with the greatest biomass?

Back

Plants.

Front

What is the term for the place where an organism lives?

Back

Habitat.

Front

Which population would be most affected by a decrease in aquatic insects?

Back

Frog.

Front

What are decomposers and why are they important in an ecosystem?

Back

Decomposers break down dead organic material, returning nutrients to the soil.

Front

What is a food web?

Back

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

Front

Define primary consumers.

Back

Organisms that eat producers; typically herbivores.

Front

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

Back

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