3.3 Energy Flow

Front

What is competition in an ecosystem?

Back

Competition occurs when two or more living things need the same resource to survive.

Front

What is the efficiency of energy transfer from one trophic level to the next?

Back

The efficiency of energy transfer from a lower trophic level to the next highest level is roughly 10%.

Front

What happens to the rabbit population if the owl population increases?

Back

The rabbit population will become smaller.

Front

What is an autotroph?

Back

An autotroph is an organism that produces its own food, typically through photosynthesis; they are also known as producers.

Front

What describes an interconnection of food chains in an ecosystem?

Back

A food web describes an interconnection of food chains in an ecosystem.

Front

What is a producer in an ecosystem?

Back

A producer is an organism that can make its own food, usually through photosynthesis, and serves as a food source for consumers.

Front

What is a consumer in an ecosystem?

Back

A consumer is an organism that cannot produce its own food and must eat other organisms for energy.

Front

What is a decomposer?

Back

A decomposer is an organism that breaks down dead or decaying organisms, returning nutrients to the ecosystem.

Front

What is a food chain?

Back

A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an 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.