Ch. 15 Intimate Partnerships

Question 1

Neutralism

Answer 1

Neither species benefit or suffer

Question 2

Commensalism

Answer 2

One species benefits, doesn’t effect the other

Question 3

Amensalism

Answer 3

One species suffers, doesn’t effect the other

Question 4

Predator/prey

Parasite/host

Answer 4

One species benefits, one species suffers

Question 5

Competition

Answer 5

Both species suffer

Question 6

Mutualism

Answer 6

Both species benefit

Question 7

True interactions

Answer 7

Predator/prey, parasite/host
Competition
Mutualism

Question 8

Coevolution is usually attributed to..

Answer 8

Ehrlich and Raven’s study of butterflies on plants

Question 9

The main point is that any old interaction, symbiosis, mutualism, etc. is not synonymous with ___

Answer 9

Coevolution

Question 10

There has been “evolution together” but whether this fits our strict definition of coevolution needs to be determined by careful..

Answer 10

Observation
Experimentation
Phylogenetic analysis

Question 11

Genetic variation can fuel ___

Answer 11

Rapid evolution

Question 12

People bearing a frameshift mutation in the CCR5 locus are resistant to what?

Answer 12

HIV

Question 13

Mimicry

Answer 13

Similarity of one species to another which protects one or both

Question 14

Defensive or protective mimicry

Answer 14

When organisms are able to avoid encounters that would be harmful to them by deceiving enemies into treating them as something else

Question 15

Batesian mimicry

Answer 15

Where a harmless mimic poses as harmful

Question 16

Mullerian mimicry

Answer 16

Where two or more harmful species mutually advertise themselves as harmful
- both benefit

Question 17

In cases where one species is scarce and another abundant, the rare species is said to be the ___

Answer 17

Mimic

Question 18

When both are present in similar numbers it is more realistic to speak of each as ___

Answer 18

Comimics

Question 19

Diversifying coevolution can ___ divergence between populations

Answer 19

Accelerate

Question 20

A crucial component of coevolution is phylogenetic analysis

Answer 20

If the cladograms of the host and the cladograms of the parasite are congruent this certainly suggests coevolutionary phenomena

Question 21

Cospeciation is just..

Answer 21

Association by descent

Question 22

Coevolution drives species diversity

Answer 22

• plants evolve innovations to escape predation

- predators evolve to overcome defenses

Question 23

Beetle diversity is linked to coevolution with ___

Answer 23

Plants

Question 24

Highly specialized mutualisms make species dependent on each other

Answer 24

Extinction of one species may drive extinction of the other

Question 25

Introduced predators can disrupt ___

Answer 25

Mutualisms

Question 26

___ and ___ are endosymbiotic bacteria that have coevolved with their hosts

Answer 26

Mitochondria and plastids

Question 27

Mitochondria and plant plastids are derived from ..

Answer 27

Free-living bacteria

Question 28

Endogenous retroviruses and mobile genetic elements had coevolved with their host ___

Answer 28

Genomes

Question 29

Endogenous retroviruses make up about what percent of the human genome

Answer 29

8%

Question 30

Coevolution

Answer 30

Reciprocal evolutionary change between interacting species, driven by natural selection

• predator/prey, parasite/host
• competitive species
• mutualistic species