Biodiversity

Environments always have both living and _________.

• Nonliving factors

• Nutrients

• bio-geochemical cycles

• Ecosystem

Abiotic factors are non living things which determine the survival of an organism. which of the following options is an abiotic factor?

• Habitat

• Electricity

• Temperature

• None of the above

A species that is at serious risk of extinction is called a(n)

• Threatened species.

• Endangered species.

• Invasive species.

• Extirpated species.

The disappearance of a particular population from a given area, but not of the entire species globally, is called

• Extirpation.

• Extinction.

• Fragmentation.

• Poaching.

The term used for species whose last individual has died in an ecosystem is called

• endangered

• global biodiversity

• degradability

• extinct

Human threats to biodiversity include:

• Habitat destruction

• Population growth

• Pollution

• All of the above

Biodiversity refers to

• extinct species

• nonrenewable resources

• the variety of species on Earth

• the rate of species decline

_____ species is a non-native plant/animal introduced accidentally or intentionally by humans

• extinct

• threatened

• endangered

• invasive (exotic)

Why are invasive species a threat to biodiversity?

• they can outcompete native organisms for their resources

• they can cause harm to the environment

• they can be harmful to humans

• all statements are true

Which is NOT a benefit of biodiversity?

• agriculture

• ecotourism

• medicine

• deforestation