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Question 1

natural selection

Answer 1

a characteristic that makes an individual better suited to a specific environment may eventually become common

Question 2

adaptation

Answer 2

behaviors and physical characteristics that allow organisms to live successfully in their environments.

Question 3

niche

Answer 3

The role of an organism in it habitat

Question 4

competition

Answer 4

the struggle between organisms to survive as they attempt to use the same limited resources

Question 5

predation

Answer 5

interaction when one organism kills another for food or nutrients

Question 6

predator

Answer 6

the organism that does the killing

Question 7

prey

Answer 7

the organism that gets killed

Question 8

symbiosis

Answer 8

any relationship when two species live closely together and one of the species benefits

Question 9

mutualism

Answer 9

a relationship in which both species benefit

Question 10

commensalism

Answer 10

a relationship when one species benefits and the other species is neither helped nor harmed

Question 11

parasitism

Answer 11

a relationship that involves one organism living with, on, or inside another organism and harming it

Question 12

parasite

Answer 12

the organism that benefits

Question 13

host

Answer 13

the organism it lives on or in

Question 14

primary succession

Answer 14

the series of changes that occurs in an area where no soil or organisms exist

Question 15

pioneer species

Answer 15

the first species to populate an area

Question 16

secondary succession

Answer 16

the series of changes that occurs in an area where the ecosystem has been disturbed, but where soil and organisms still exist

Question 17

succession

Answer 17

the series of predictable changes that occur in a community over time