Lecture 10

Question 1

natural selection based on

Answer 1

traits that help or hurt survival

Question 2

sexual selection based on

Answer 2

female choice of the male who can contribute to better survival of young, either because he contributes to genes that lead to better morphology or because he has better behaviors

Question 3

examples of how particular brain components reflect species abilities

Answer 3

rat has large mechanosensory and electrosensory centers because use its whiskers to move around and view world,
platypus bill is sensory system for electrical field and mechanorecption

Question 4

food caching birds (corvids and lays) can remember and what their brain reflects

Answer 4

the locations where they cached food
how old the food is at each location
who was watching when they cached
larger hippocampuses than non caching birds, better spatial memory

Question 5

HVC

Answer 5

has to do with birds ability for song, if it is damaged they can’t sing

Question 6

tool kits of genes

Answer 6

accomplish particular tasks, don’t have to rewrite instructions to get from fly limb to primate, just use tool kits and then add details

Question 7

FOX P2

Answer 7

gene expression for the capacity for fine motor control and learning like speech and singing for birds

Question 8

what is the best predictor of brain size

Answer 8

the duration of neurogenesis period