Ecosystem Ecology 22

Biodiversity, aka biological diversity, usually refers to

• the same species in a general location

• the number of different species in a given area

• the number of animal species in a given area

• the number of plant species in a given area

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Species that are clearly critical to the functioning of an ecosystem are known as

• biodiversity

• keystone species

• main species

• native species

A species that is likely to become extinct if protective measures are not taken immediately is known as

• threatened species

• endemic species

• keystone species

• endangered species

An endemic species is

• exotic and found everywhere

• exotic and found only in certain regions

• native and found only in a limited area

• native and found everywhere

A community is

• Several different populations scattered across several states.

• Several different organisms in the same geographic area

• One type of organism in the same geographic area

• Several different populations in the same geographic area

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What does biodiversity mean?

• Only one species in an area.
• The different amount of species in an area
• All abiotic life
• Nitrogen fixation

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Which option is abiotic?

• Plants
• Bacteria
• Water
• Fungi

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High biodiversity is a sign of a healthy ecosystem.

• True

• False

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What are some ways we can help in maintaining biodiversity?

• Get involved with ecological restoration in your area.

• Prevent invasive species from overpopulating.

• Don't use chemical pesticides on crops.

• All of the above

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Image "B" shows more biodiversity than image "A". Why?

• Because "B" shows more different species than image "A"

• Because image "B" has less different species than "A"

• "A" has a greater number of same species plants so this statement is wrong.

• Both images show the same biodiversity

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