ch.8

Question 1

population

Answer 1

A population is defined as a group of individuals of the same species living and interbreeding within a given area.

Question 2

density

Answer 2

To calculate density, you divide the number of objects by the measurement of the area

Question 3

dispersion

Answer 3

an ecological process that involves the movement of an individual or multiple individuals away from the population in which they were born to another location, or population, where they will settle and reproduce

Question 4

growth rate

Answer 4

The rate, or speed, at which the number of organisms in a population increases

Question 5

reproductive

Answer 5

relating to or concerned with the production of offspring

Question 6

potential

Answer 6

The organism that produces the most organisms in that time frame has the most biotic potential

Question 7

exponential growth

Answer 7

is growth that increases by a constant proportion

Question 8

carrying capacity

Answer 8

a species’ average population size in a particular habitat.

Question 9

niche

Answer 9

describes the role an organism plays in a community.

Question 10

competition

Answer 10

the interaction of individuals that vie for a common resource that is in limited supply

Question 11

predation

Answer 11

one organism kills and consumes another.

Question 12

parasitism

Answer 12

relationship between two species of plants or animals in which one benefits at the expense of the other

Question 13

mutualism

Answer 13

a type of symbiotic relationship where all species involved benefit from their interactions

Question 14

commensalism

Answer 14

a relationship between individuals of two species in which one species obtains food or other benefits from the other without either harming or benefiting the latter

Question 15

symbiosis

Answer 15

an ecological relationship between two species that live in close proximity to each other.