U2REV Ecology Vocabulary

Front

What term refers to all the living organisms in a particular area?

Back

Biotic factor

Front

What is the sequence of organisms through which energy is transferred in an ecosystem?

Back

Food chain

Front

What is the effect of algal bloom decomposition on oxygen levels in a pond?

Back

Decreased oxygen due to algal bloom decomposition

Front

What happens to an ecosystem if a keystone species is removed?

Back

The ecosystem structure may collapse or change significantly

Front

How does a drought affect a rabbit population limited by grass availability?

Back

The population will decrease due to less food

Front

What is an abiotic factor?

Back

Non-living chemical and physical parts of the environment that affect living organisms.

Front

Define habitat.

Back

The natural home or environment of an organism.

Front

What is a food web?

Back

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

Front

What is a trophic level?

Back

The position an organism occupies in a food chain.

Front

What is biomass?

Back

The total mass of living matter within a given area.