Exam 3 - Environmental Science

Question 1

Species Diversity

Answer 1

The number and relative abundance of species in a biological community.

Question 2

Genetic Diversity

Answer 2

A measure of the genetic variation among individuals in a population.

Question 3

Ecological Diversity

Answer 3

The variety of terrestrial and aquatic ecosystems found in an area or on the earth.

Question 4

Native Species

Answer 4

Species that enter new ecosystems and multiply, harming native species and their habitats.

Question 5

Invasive Species

Answer 5

Species that enter new ecosystems and multiply, harming native species and their habitats.

Question 6

Indicator Species

Answer 6

Species that serve as early warnings that a community or ecosystem is being degraded.

Question 7

Keystone Species

Answer 7

A species that regulate the populations of many other species in an ecosystem.

Question 8

Umbrella Species

Answer 8

its protection means a wide range of other species will also be protected.

Question 9

Endemic Species

Answer 9

Species that are native to and found only within a limited area.

Question 10

Values of biodiversity

Question 11

Threats to biodiversity

Question 12

What does the “H” in HIPPCO represent?

Answer 12

Habitat destruction

Question 13

What does the “I” in HIPPCO represent?

Answer 13

Invasive species

Question 14

What does the “P” in HIPPCO represent?

Answer 14

Population growth

Question 15

What does the “P” in HIPPCO represent?

Answer 15

Pollution

Question 16

What does the “O” in HIPPCO represent?

Answer 16

Overexploitation

Question 17

Mass Extinction

Answer 17

event in which many types of living things become extinct at the same time

Question 18

Endangered

Answer 18

A species whose numbers are so small that the species is at risk of extinction