Unit 5

Question 1

Adaptation

Answer 1

a change by which an organism or species becomes better suited to its environment.

Question 2

Dichotomous key

Answer 2

a tool used to identify species of organisms using observable characteristics

Question 3

Natural selection

Answer 3

organisms better adapted to their environment tend to survive and produce more offspring

Question 4

Population

Answer 4

all of the members of a species living in a particular area at a particular time

Question 5

Selective breeding

Answer 5

making deliberate crosses of plants or mating of animals, so the offspring will have the desired characteristic derived from one of the parents

Question 6

Species

Answer 6

a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding.

Question 7

Hibernation-

Answer 7

a state of inactivity observed during the winter months

Question 8

Migration

Answer 8

seasonal movement of animals from one region to another.

Question 9

Dormancy

Answer 9

the state of having normal physical functions suspended or slowed down for a period of time (inactive)

Question 10

Mimicry

Answer 10

One organism looks like or copies another organism

Question 11

Camouflage

Answer 11

An organism blends in with its surroundings