L7 Mate Choice and Sociality in Evolutionary Biology

Question 1

Sexual Selection

Answer 1

Darwin’s theory explaining mate competition traits.

Question 2

Assortative Mating

Answer 2

Preference for similar phenotypes in partners.

Question 3

Sociality

Answer 3

Living in groups for breeding and survival.

Question 4

Altruism

Answer 4

Selfless behavior benefiting others’ reproductive success.

Question 5

Eusociality

Answer 5

Cooperative breeding with non-reproductive helpers.

Question 6

Sex Differences

Answer 6

Variations in traits and behaviors between sexes.

Question 7

Gamete Size

Answer 7

Females produce larger, energy-rich gametes.

Question 8

Parental Care

Answer 8

Investment in offspring survival and development.

Question 9

Lifetime Reproductive Success

Answer 9

Total offspring produced by an individual.

Question 10

Alpha Male

Answer 10

Dominant male with highest reproductive success.

Question 11

Differential Variance

Answer 11

Unequal reproductive success among individuals.

Question 12

Intersexual Choice

Answer 12

Female selection based on male traits.

Question 13

Intrasexual Competition

Answer 13

Male competition for access to females.

Question 14

Aesthetic Preferences

Answer 14

Female attraction to visually appealing traits.

Question 15

Good Genes Hypothesis

Answer 15

Females choose mates with superior genetic quality.

Question 16

Peacock Eyespot

Answer 16

Indicator of male quality and offspring survival.

Question 17

House Finch Preference

Answer 17

Females prefer redder males for better parenting.

Question 18

Sexual Selection Mechanisms

Answer 18

Processes driving mate choice and competition.

Question 19

California Elephant Seal

Answer 19

Males compete for territory and females.

Question 20

Vogelkop Bowerbird

Answer 20

Male displays attract females for mating.

Question 21

Eastern Bluebird

Answer 21

Example of mate selection based on traits.

Question 22

Cedar Waxwing

Answer 22

Species illustrating aesthetic female preferences.

Question 23

Sexual Selection Consequences

Answer 23

Leads to secondary sexual characteristics.

Question 24

Natural Selection

Answer 24

Process favoring traits enhancing survival and reproduction.

Question 25

Stalk-eyed fly

Answer 25

A species illustrating sexual selection dynamics.

Question 26

Honest signalling

Answer 26

Signals indicating true quality of individuals.

Question 27

Handicap Principle

Answer 27

Costly traits signal fitness to potential mates.

Question 28

Assortative mating

Answer 28

Mating preference based on similar traits.

Question 29

Optimal outbreeding

Answer 29

Mating strategy to enhance genetic diversity.

Question 30

Major histocompatibility complex (MHC)

Answer 30

Genes crucial for immune response and mate choice.

Question 31

Sweaty T-shirt experiment

Answer 31

Study showing MHC preferences in human odor.

Question 32

Parental care

Answer 32

Investment by parents in offspring survival.

Question 33

Parent-offspring conflict

Answer 33

Disagreement over resource allocation between generations.

Question 34

Siblicide

Answer 34

Nestlings killing siblings for survival advantages.

Question 35

Cooperative breeding

Answer 35

Non-breeding individuals assist in raising young.

Question 36

Meerkat sentinel

Answer 36

Non-breeder watching for predators during foraging.

Question 37

Meerkat helpers

Answer 37

Assist in raising pups, enhancing survival rates.

Question 38

Infanticide in meerkats

Answer 38

Pregnant females kill others' young for survival.

Question 39

Dominant females in meerkats

Answer 39

Account for most surviving offspring in groups.

Question 40

Courtship behavior

Answer 40

Elaborate rituals to attract mates.

Question 41

Genetic compatibility

Answer 41

Mating preference to maintain healthy gene pool.

Question 42

Olfactory cues in mate choice

Answer 42

Chemical signals influencing mating preferences.

Question 43

Black eagle siblicide

Answer 43

Nestlings kill siblings to reduce competition.

Question 44

Kookaburra siblicide

Answer 44

Intra-brood killing for resource allocation.

Question 45

Florida scrub jay

Answer 45

Example of cooperative breeding in birds.

Question 46

Colony structure in naked mole rats

Answer 46

Single queen with non-breeding colony members.