Social Behavior

Question 1

Monogamy

Answer 1

one male, one female each mating cycle

Question 2

Polygyny

Answer 2

one male, multiple females

Question 3

Polyandry

Answer 3

one female, multiple males

Question 4

Polygynandry

Answer 4

multiple males, multiple females

Question 5

intersexual selection

Answer 5

showing off good genes in secondary sex characteristics

Question 6

intrasexual selection

Answer 6

males compete directly most common in primates - compete over territory, females, fertilization

Question 7

Inbreeding depression

Answer 7

caused by increased expression of rare disease alleles and losing heterozygosity

Question 8

Sex-biased dispersal

Answer 8

one sex leaves the group at adulthood (typically males, as coalitions)

Question 9

Kin selection

Answer 9

an allele spreads faster (fitter) if it confers both high level of direct and indirect fitness (when you help relatives reproduce)

Question 10

Despotic dominance hierarchy

Answer 10

one dominant, everyone else subordinate

Question 11

Linear dominance hierarchy

Answer 11

fixed rank

Question 12

Antagonistic pleiotropy

Answer 12

multiple traits affected by the same genes

Question 13

Social brain hypothesis

Answer 13

successfully navigating within a social group requires a big brain

Question 14

Ecological brain hypothesis

Answer 14

unpredictable/well-defended food requires ability to do complex problem solving

Question 15

K-selected

Answer 15

few offspring, longer life