Biodiversity Test

____________________ is the variety of living organisms on Earth

• Biosphere
• Biodiversity
• Ecosystem
• Biome

___________________ is a group of similar organisms that have similar characteristics to each other and can breed with each other.

• Biodiversity
• Biome
• Species
• Organisms

A ____________________ species is a species that influences the survival of many other species in an ecosystem. EX: bee

• Threatened
• Endangered
• Keystone
• Extinct

TRUE or FALSE: Maintaining biodiversity is important to keep an ecosystem healthy.

• True
• False

When there are no more of an organism left on Earth, that species is:

• Keystone
• Threatened
• Endangered
• Extinct

Name the 5 factors that affect biodiversity:

• Climate
• Area (size)
• Niche diversity
• Genetic Diversity
• Extinction of Species

A ___________________ species is a species that could become endangered soon.

• Endangered
• Threatned
• Keystone
• Extinct

A ____________________ species is a species in danger of becoming extinct soon.

• Endangered
• Threatened
• Keystone
• Extinct

TRUE or FALSE: people have no influence on biodiversity

• True
• False

Which of the following increases the sustainability of an ecosystem?

• Decreased internal stimuli
• Decreased heredity
• Increased external stimuli
• Increased biodiversity