b51 exam

Question 1

reciprocal evolutionary change between interacting species, driven by natural selection

Answer 1

coevolution

Question 2

describes a relationship between species in which both species benefit

Answer 2

Mutualism

Question 3

describes a relationship between species in which one species benefits and the other is neither helped nor harmed

Answer 3

Commensalism

Question 4

describes selection that occurs in two species due to their interactions with one another. __________ is the critical prerequisite of coevolution.

Answer 4

Reciprocal selection

• two way evolution

Question 5

occurs when one species coevolves with several other species by shifting among the species with which it interaction over many generations

Answer 5

coevolutionary alternation

Question 6

occurs when species interact antagonistically (conflictingly) in a way that results in each species exerting reciprocal directional selection on the other

as one species evolves to overcome the weapons of the other, it, in turn, selects for new weaponry in its opponent

Answer 6

coevolutionary arms race

Question 7

two or more harmful species evolve to resemble each other

Answer 7

mullerian mimicry

Question 8

a harmless species evolves to mimic a harmful or unpalatable species

Answer 8

batesian mimicry

Question 9

batesian mimicry is more likely to lead to

Answer 9

negative frequency dependent selection

Question 10

behaviors are part of an organism’s ______

Answer 10

phenotype (observable characteristic or trait of an organism, which results from the interaction between its genotype (genetic makeup) and the environment

Question 11

is behavior limited to animals?

Answer 11

no, we can consider behavior in plants and microbes as well

Question 12

interactions with other members of the same species

Answer 12

social behaviors

ex. cooperating and cheating

Question 13

an internally generated response to an external stimulus

Answer 13

a behavior