Final Exam Review

Front

What is the graphical model of energy flow in a community?

Back

Energy pyramid.

Front

What type of consumer is a third-level consumer?

Back

Carnivore.

Front

In what direction do the arrows in a food chain point?

Back

In the direction of energy flow.

Front

Can plants and animals use nitrogen directly from the air?

Back

False.

Front

What is the network of complex interactions formed by feeding relationships among organisms in an ecosystem?

Back

Food web.

Front

What is a producer in an ecosystem?

Back

An organism that can make its own food, typically through photosynthesis.

Front

What is a decomposer?

Back

An organism that breaks down dead or decaying organisms, returning nutrients to the ecosystem.

Front

What is a food chain?

Back

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

Front

What role do herbivores play in an ecosystem?

Back

They are primary consumers that eat producers (plants).

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.