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 or organisms using opposing 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

physiology

Answer 5

the way a living organism or bodily part functions

Question 6

selective breeding

Answer 6

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

Question 7

species

Answer 7

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

Question 8

hibernation

Answer 8

a state of inactivity during the winter months

Question 9

migration

Answer 9

seasonal movement of animals from one region to another

Question 10

dormancy

Answer 10

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