Extra Credit Flashcard #3: Biosphere Part 2

Front

Define genetic diversity

Back

Variation of genes within a species or population in a given area.

Front

Which biome consists of very low precipitation and can be hot or cold?

Back

Desert.

Front

What type of succession is shown going from figure A to figure B?

Back

Secondary succession.

Front

What level of biodiversity is most commonly equated with the overall concept of biodiversity?

Back

Species.

Front

What is an invasive species?

Back

A non-native (not naturally found) species added to an area.

Front

What is the definition of a biome?

Back

A large geographical biotic unit, a major community of plants and animals with similar life forms and environmental conditions.

Front

What is primary succession?

Back

The process of ecological change that occurs in an area where no soil exists, such as after a volcanic eruption.

Front

What is secondary succession?

Back

The process of ecological change that occurs in an area where a disturbance has destroyed an existing community but left the soil intact.

Front

Define ecosystem diversity.

Back

The variety of ecosystems within a given area.

Front

What is a keystone species?

Back

A species that has a disproportionately large effect on its environment relative to its abundance.