Ch. 8 Key Terms

Question 1

Population

Answer 1

Is the set of individuals within a species living in the same place at the same time.

Question 2

Density

Answer 2

Is the number of individuals per unit area or volume, such as the number of bass per cubic meter of water in a lake.

Question 3

Dispersion

Answer 3

Describes the arrangement of its individuals in space

Question 4

Growth rate

Answer 4

Is the birth rate minus the death rate

Question 5

Reproductive potential

Answer 5

This rate is limited by the maximum number of offspring that each member of the population can produce

Question 6

Exponential growth

Answer 6

means they grow faster and faster.

Question 7

Carrying capacity

Answer 7

is the population size where birth rates and death rates are equal.

Question 8

Niche

Answer 8

can be the range of conditions in which a species can survive

Question 9

Competition

Answer 9

Is a relation-ship in which different individuals or populations attempt to use the same limited resource.

Question 10

Predation

Answer 10

An organism that feeds on another organism is called a predator, and the organism that is fed upon is the prey.

Question 11

Parasitism

Answer 11

The relationship between the parasite and its host

Question 12

Mutualism

Answer 12

A close relationship between two species in which each species provides a benefit to the other

Question 13

Commensalism

Answer 13

A relationship in which one species benefits and the other species is neither harmed nor helped

Question 14

Symbiosis

Answer 14

A relationship in which two species live in close association