Sexual Selection and Coevolution

Question 1

anisogamy

Answer 1

gametes of diff size, common in organims who have sex

Question 2

coevolution

Answer 2

Coevolution is the reciprocal
evolutionary change between
interacting species or genes, between or within species
antagonistic interspecific: predator prey, host parasite (arms race)
mutualistic interspecific: plants and pollinators
mutualistic intraspecific: hormone receptor
antagonistic intraspecific: sperm and egg

Question 3

fecundity

Answer 3

fertility, fitness is a function of

Question 4

fishers runaway hypothesis

Answer 4

mating with sexy male=sexy sons=pass down genes

Question 5

fundamental asymmetry of sex

Answer 5

female fitness limited by resources to produce eggs and rear young
male fitness limited by ability to attract mates

Question 6

good genes hypothesis

Answer 6

conspicuous male traits indicator of good genes

Question 7

intrasexual selection

Answer 7

one gender competes for mating

Question 8

intersexual selection

Answer 8

females choose mates based on male traits

Question 9

isogamy

Answer 9

gametes of equal size

Question 10

mullers ratchet

Answer 10

small asexual populations are doomed to accumulate ever-increasing deleterious mutation loads as a consequence of the magnified power of genetic drift and mutation

Question 11

red queen hypothesis

Answer 11

always evolving to keep up with others (antagonistic)

Question 12

sensory exploitation hypothesis

Answer 12

males evolve to exploit already stimulating sensory traits similar to food

Question 13

sexual dimorphism

Answer 13

males and females look different

Question 14

sperm competition

Answer 14

intrasexual selection, females mate multiple times, sperm trains/killer/copulatory plugs