Biology Regents Review 2: Ecology

Front

Which organelle is responsible for photosynthesis?

Back

Chloroplast

Front

On average, how much energy is lost between each trophic level?

Back

90%

Front

What is the name of the green pigment all autotrophs must have to perform photosynthesis?

Back

Chlorophyll

Front

Which of the following are missing from the food web shown above?

Back

Decomposers

Front

What term is used to describe when concentrations of a harmful substance increase in organisms at higher trophic levels in a food chain or food web?

Back

Biological magnification

Front

What is the primary source of energy for all ecosystems?

Back

The Sun

Front

What is a producer in an ecosystem?

Back

An organism that can make its own food through photosynthesis or chemosynthesis.

Front

What is a consumer in an ecosystem?

Back

An organism that obtains energy by eating other organisms.

Front

What role do decomposers play in an ecosystem?

Back

They break down dead organic matter, returning nutrients to the soil.

Front

What is biodiversity?

Back

The variety of life in a particular habitat or ecosystem.