7.3 evolution and brains

Question 1

homo floresiensis has a brain and body size that puts it at the intersection of what lines?

Answer 1

the australopithecine body size regression line and the more recent homonid regression line

Question 2

the bigger the brain, the more it starts to

Answer 2

fold

Question 3

humans have the highest

Answer 3

brain/body weight ratio - encephalisation factor

Question 4

what is different between the brain and other organs in terms of evolution?

Answer 4

patterns of gene expression

Question 5

the smallest animals have the largest what?

Answer 5

brains as proportions of their whole body

Question 6

do functions come to areas of the brain, or do areas arise around specific functions?

Answer 6

functions come to areas. that is fucking cool.

Question 7

the biggest difference in brains across verterbrates is the

Answer 7

cerebrum

Question 8

in mammals the cerebrum is dominated by ______

Answer 8

the cerebral cortex and underlying white matter

Question 9

in larger mammals the cerebral cortex is ______ and _______

Answer 9

bigger and more folded

Question 10

an exahmple of a large brain with a simple histological appearance

Answer 10

cerebral cortex of monkey or whale

Question 11

humans compared to apes have a greater period of ______

Answer 11

postnatal brain growth

Question 12

this has stayed the same throughout different species

Answer 12

cortical thickness

Question 13

an example of a small brain with complex organisation

Answer 13

goldfish

Question 14

in development of the apes, what ratio stays consistent?

Answer 14

brain to body weight ratio.