Chapter 3

Question 0

Aeration

Answer 0

Mixing w/ air

Question 1

Adaptive radiation

Answer 1

The development of a number of new species from a common ancestor

Question 2

Climax community

Answer 2

A mature community that changes over time

Question 3

Contamination

Answer 3

The instruction of chemicals, toxins, wastes, or microorganisms into the environment in concentrations that are harmful to living things

Question 4

Deforestation

Answer 4

The clearing or logging of forests without replanting

Question 5

Ecological succession

Answer 5

Changes that take place over time in the types of organisms that live in an area

Question 6

Extinction

Answer 6

The dying out of a species

Question 7

Foreign species

Answer 7

Introduced species

Question 8

Habitat fragmentation

Answer 8

Division of habitats into smaller isolated fragments

Question 9

Habitat loss

Answer 9

The destruction of habitats that usually result from human activities

Question 10

Introduced species

Answer 10

Organisms transported accidentally or intentionally into regions they did not exist in previously

Question 11

Invasive species

Answer 11

Introduced species that take over habitats of native species or invade their bodies

Question 12

Land use

Answer 12

The ways in which we use land

Question 13

Native species

Answer 13

Plants and animals that naturally inhabit an area

Question 14

Natural selection

Answer 14

The process in which the best adapted members of a species will survive and reproduce

Question 15

Over exploitation

Answer 15

The use or extractions of a resource until it is depleted

Question 16

Primary succession

Answer 16

The development of new life in areas where no organisms or soil previously existed.

Question 17

Secondary succession

Answer 17

The reintroduction of life after a disturbance to an area that already has soil and was once the home of living organisms

Question 18

Soil compaction

Answer 18

The squeezing together of soil particles so that the air spaces between them are reduced

Question 19

Soil degradation

Answer 19

Damage to soil

Question 20

Sustainability

Answer 20

The ability of an ecosystem to sustain ecological process and biodiversity over time and keep on sustaining it

Question 21

Traditional ecological knowledge

Answer 21

Ecological info passed down from gen. to gen. that reflects human experience w/ nature