Chapter 8

Question 1

Biodiversity
* Definition:

Answer 1

Variety of life forms in an ecosystem

Question 2

Importance of biodiversity

Answer 2

More biodiversity = healthier ecosystems.

Question 3

Species Diversity:

Answer 3

Variety of species in an area.

Question 4

Keystone Species:

Answer 4

Species whose role in an ecosystem is more important than its biomass suggests

Question 5

ecotourism:

Answer 5

Travel that supports conservation and sustainable development.

Question 6

Endangered Species:

Answer 6

Species at risk of extinction.

Question 7

IUCN’s Red List:

Answer 7

Global list of threatened species.

Question 8

Endangered Species Act:

Answer 8

U.S. law protecting endangered species and their
habitats.

Question 9

Habitat Loss and Destruction:

Answer 9

Primary cause of species extinction

Question 10

Inbreeding Depression:

Answer 10

Reduced genetic diversity causing lower survival rates.

Question 11

Edge Effects:

Answer 11

Negative impact at the boundaries of ecosystems

Question 12

extirpation:

Answer 12

Local extinction of a species from an area.

Question 13

extinction:

Answer 13

Complete loss of a species

Question 14

Sixth mass extinction

Answer 14

a possible mass extinction event caused by human activity