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

Question 3

Dispersion

Answer 3

The arrangement of its individuals in space.

Question 4

Growth Rate

Answer 4

The percentage change in the size of a population over a given period of time is that population’s.

Question 5

Reproductive Potential

Answer 5

The maximum number of offspring that a given organism can produce.

Question 6

Exponential Growth

Answer 6

Logarithmic growth, or growth in which numbers increase by a certain factor in each successive time period.

Question 7

Carrying Capacity

Answer 7

The largest population that an environment can support at any given time.

Question 8

Niche

Answer 8

The unique position occupied by a species both in terms of its physical use of its habitat and its function within an ecological community.

Question 9

competition

Answer 9

The relationship between two species or individuals in which both species or individuals attempt to use the same limited resource such that both are negatively affected by the relationship.

Question 10

Predation

Answer 10

An interaction in which one organism captures and feeds on another organism.

Question 11

Parasitism

Answer 11

A relationship between two organisms of different species where one benefits and the other is harmed.

Question 12

Mutualism

Answer 12

A relationship between two species in which both species benefit.

Question 13

Commensalism

Answer 13

A relationship between two organisms in which one organism benefits and the other is unaffected.

Question 14

Symbiosis

Answer 14

A relationship in which two different organisms live in close association with each other.