Biology Semester Exam Review

Front

What is emigration?

Back

Emigration is the process of organisms moving out of a population.

Front

What is the role of ATP in cells?

Back

ATP (Adenosine Triphosphate) is the energy currency of the cell, used to store and transfer energy.

Front

What happens to energy in a trophic pyramid as it moves up?

Back

Energy decreases by 10% each level in a trophic pyramid.

Front

What is intraspecific competition?

Back

Intraspecific competition is competition that occurs within the same species.

Front

What are producers in an ecosystem?

Back

Producers are organisms, like algae and plants, that create their own food through photosynthesis.

Front

Define immigration in ecological terms.

Back

Immigration is the movement of organisms into a population.

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 and nutrients.

Front

What is the difference between biotic and abiotic factors?

Back

Biotic factors are living components of an ecosystem, while abiotic factors are non-living components.

Front

What are heterotrophs?

Back

Heterotrophs are organisms that cannot produce their own food and must consume other organisms for energy.

Front

Explain the concept of an energy pyramid.

Back

An energy pyramid illustrates the flow of energy through different trophic levels in an ecosystem.