Ecosystem Ecology

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

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 common type of succession that occurs where an event such as a forest fire has occurred, or a farmer's field has been abandoned is called

• common succession

• primary succession

• secondary succession

• Quaternary succession

A population is

• a group of similar species in different areas

• a group of the same species in the same geographic area.

• a group of several species in the same geographic area

• a group of several species along with their abiotic factors in a small area.

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

What does biodiversity mean?

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

Which option is abiotic?

• Plants
• Bacteria
• Water
• Fungi

High biodiversity is a sign of a healthy ecosystem.

• True

• False