Ecosystems: Food Chains, Webs, & Energy Pyramids

Front

What is a food web?

Back

A food web consists of many overlapping food chains, showing how energy flows through an ecosystem.

Front

What is the primary model that shows how energy flows through an ecosystem?

Back

The food web is the primary model that shows interconnected feeding relationships and energy flow.

Front

What are producers?

Back

Producers are organisms that make their own food, typically through photosynthesis.

Front

How do producers obtain energy?

Back

Producers obtain energy by conducting photosynthesis.

Front

What is the first source of energy in an energy pyramid?

Back

The first source of energy in an energy pyramid is typically algae, plankton, and seagrass.

Front

What is a food chain?

Back

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

Front

What role do consumers play in an ecosystem?

Back

Consumers are organisms that obtain energy by eating other organisms.

Front

What are decomposers?

Back

Decomposers are organisms that break down dead or decaying organisms, returning nutrients to the ecosystem.

Front

What is an energy pyramid?

Back

An energy pyramid is a graphical representation that shows the flow of energy at different trophic levels in an ecosystem.

Front

What is a trophic level?

Back

A trophic level is a position in a food chain or food web, representing the flow of energy from producers to various levels of consumers.