Ecology: Organisms and Their Habitats

Front

What is quadrat sampling used for in ecology?

Back

Estimating the population size of a species within a certain area.

Front

If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?

Back

100 Kcal.

Front

What does the term 'population' refer to in ecology?

Back

All of the bullfrogs living around a pond.

Front

What is biodiversity?

Back

The degree of variation of life on Earth.

Front

Which organisms have the most energy available in an energy pyramid?

Back

Producers.

Front

What is a habitat?

Back

The natural environment in which an organism lives.

Front

Define ecosystem.

Back

A community of living organisms and their interactions with their environment.

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 is the role of producers in an ecosystem?

Back

They convert solar energy into chemical energy through photosynthesis.

Front

What is a trophic level?

Back

A position in a food chain or food web, defined by how many energy transfers away from the original source of energy.