Extra stuff

Question 1

Observations made by Thomas Malthus

Answer 1

Population is limited by find supply
Individuals who are able to feed their offspring survive and reproduce
Members of a population compete for access to food

Question 2

difference in human and primate feet

Answer 2

primates have opposable big toe

primates lack the longitudinal arch important for bipedalism

Question 3

what part of human anatomy allows us to produce speech

Answer 3

hyoid

Question 4

adaptive radiation

Answer 4

diversification of ancestral species into new species that are adapted to diverse environmental niches

Question 5

adaptations

Answer 5

changes in physical structure, finction or behaviour that allows or enhances survival or reproduction in a given environment

Question 6

polymorphic trait

Answer 6

at least two different alleles

Question 7

polygenic

Answer 7

multiple genes cause one effect

Question 8

pleitrophic

Answer 8

multuple effects from one gene

Question 9

the only hominids today are

Answer 9

modern humans

Question 10

hominids are similar in genetics to

Answer 10

chimps and gorillas- suggests hominins diverged form these

Question 11

distinctive human traits

Answer 11

bipedalism
large complex brain
human sexuality 
greater proportion of learned behaviour
toolmaking required for survival
language is complex and symbolic

Question 12

as primates evolve the olfactory bulb gets

Answer 12

smaller

Question 13

other primate featues

Answer 13

enlarged visual centre in brain- reduction in sense of smell

dietary plasticity- wide range of foods