Biology Final Review

Front

What are ponds and lakes classified as?

Back

Standing water ecosystems.

Front

What is the simplest grouping of more than one kind of organism in the biosphere?

Back

Community.

Front

What makes up a molecule of water?

Back

Two atoms of hydrogen and one atom of oxygen.

Front

What is the rate at which organic matter is created by producers in an ecosystem called?

Back

Primary productivity.

Front

What slows the loss of heat to space?

Back

Atmospheric gasses.

Front

Define 'ecosystem'.

Back

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

Front

What is a 'population' in biological terms?

Back

A group of individuals of the same species living in a specific area.

Front

What is 'primary productivity'?

Back

The rate at which energy is converted by photosynthetic and chemosynthetic autotrophs to organic substances.

Front

What is the difference between a 'community' and an 'ecosystem'?

Back

A community is made up of different species living together, while an ecosystem includes the community and the physical environment.

Front

What role do producers play in an ecosystem?

Back

They convert solar energy into chemical energy through photosynthesis.