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intro to human evolution > Test 2 > Flashcards

Test 2 Flashcards

1
Q

A primate with a body weight of 400g (less than a pound) is most likely

A

An insectivore

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2
Q

The brilliant blue coloration of male vervet monkey tested entails an example of

A

Intersexual selection

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3
Q

Make and female primates form dominance hierarchies in response to competition for limited recourses necessary for reproduction. For female reproduction the limiting resource is…. While male reproduction is limited by….

A

Food; Acess to females

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4
Q

Which of the following has a fission fusion society

A

Bonobos

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5
Q

Which of the following is a cost to primate sociality

A

Increased competition between group members

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6
Q

Humans, apes, and cercopithecoids (OWM) are members of the infraorder Catarrhines. What is their shared dental formula

A

2 incisors- 1 canine- 2 premolars- 3 molars

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7
Q

The only autosomal trisomy that allows the survival of the individual until adulthood is

A

Down’s syndrome

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8
Q

Today the order primates is divided into two suborders

A

Strepsirhini and haplorhini

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9
Q

Catarrhines include

A

Old world monkeys, apes and humans

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10
Q

Somatic cells

A

Are the cells of the body that are not gametes

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11
Q

Primate species that used sex to alleviate tensions within group members

A

Pan paniscus

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12
Q

Insectivore

A

Tarsier

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13
Q

True or false: According to the new classification for the order primates, tarsiers are more closely related to lemurs, lorises, and galagos

A

False

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14
Q

Chimpanzees reside in

A

Africa

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15
Q

The only source of totally new genetic material is

A

Mutation

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16
Q

Pan paniscus

A

Bonobo

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17
Q

Cercopithecoids

A

Have dental formulas 2-1-3-3, have bilophodont molars, have postorbital bars

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18
Q

Humans are

A

Both haplorhines and Catarrhines

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19
Q

One male multi-female

A

Gorillas

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20
Q

Monogamous

A

Gibbons

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21
Q

Orangutans location

A

Southeast Asia

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22
Q

Brachiation

A

Gibbons

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23
Q

Genetic drift

A

Allele frequency change due to sampling error each generation

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24
Q

Haplorhines include

A

Tarsiers, hominoids, Cercopithecoids, platyrrhines

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25
Q

Quadrumanous locomotion

A

Pongo pygmaeus

26
Q

Catarrhines

A

have dental formula 2-1-2-3, include humans, Cercopithecoids and hominoids, have narrow nostrils that face down

27
Q

Which species live in multimale- multifemale groups

A

Chimpanzees

28
Q

Platyrrhines location

A

Central and South America

29
Q

Which process results in two identical diploid daughter cells

A

Mitosis

30
Q

Platyrrhines are primates found today in region of central and South America. They are different from the old world monkeys by displaying the following dental formula

A

2:1:3:3

31
Q

Which process occurs when selection world against the extremes of a trait and favors the intermediate phenotype

A

Balancing/ stabilizing selection

32
Q

The primary emphasis on the visual sense is reflected in

A

The presence of color- vision in most species, the reduction of the snout and olfactory sense, a more forward facing position of the eyes allowing the primates to judge distance

33
Q

Prosimians

A

Tarsiers, galagos, lorises, lemurs

34
Q

Folivore

A

Gorilla

35
Q

A rhinarium is only present among

A

Strepsirhines

36
Q

Gene flow

A

Migration with reproduction

37
Q

In primates postorbital closure is displayed by….. while postorbital bar is displayed by….

A

Haplorhines; Strepsirhines

38
Q

Pongo pygmaeus

A

Orangutan

39
Q

Multimale- multifemale

A

Chimpanzees

40
Q

Fission and fusion

A

Macaca mulatta

41
Q

Genetic drift refers to random changes in allele frequencies from one generation to the next

A

True

42
Q

Hominoids

A

Have orally positioned shoulder blades increasing range of movement of forelimb/ upperlimb, have Y-5 molars, include all apes

43
Q

Platyrrhines

A

Have sideways oriented nostrils, are the most arboreal of the monkeys, have dental formula 2-1-3-3, have a prehensile tail

44
Q

Gorrilas location

A

Africa

45
Q

Primates display the following features

A

Orbital frontation and convergence, reduced sense of smell with relatively shorter snouts and reduced olfactory bulbs, postorbital bars or postorbital closures, grasping hands and feet, unspecialized molars, dental formulas that are either 3-1-4-3 or 4-1-4-3

46
Q

Anthropoids

A

Platyrrhines, Cercopithecoids, Hominoids

47
Q

The olfactory bulb of a lemur is evidently larger than that of an opossum

A

False

48
Q

The brilliant blue coloration of male vervet monkeys scrota entails an example of

A

Intersexual selection

49
Q

Features that are homologous are

A

Similar due to shared ancestry

50
Q

What is the scientific name of chimpanzee

A

Pan troglodytes

51
Q

A severe drought occurred in the Galápagos Islands during the end of the 1970s. As a result the phenotype of the finch population drastically changed with the majority of individuals displaying large and robust beaks. Which evolutionary force took place

A

Directional selection

52
Q

Lemurs location

A

Madagascar

53
Q

A volcano exploded and kills all but ten members of a population of primates. These ten continue to reproduce but the allele frequency is now different from that of the original population. This is an example of…. Which is due to sampling error

A

Genetic drift

54
Q

Vertical clinging and leaping

A

Tarsiers

55
Q

Strepsirhines

A

Lorises, lemurs and galagos

56
Q

Tarsiers

A

Weigh 500g or less, have huge eyeballs, are insectivores, have pointy teeth, have monogamous social systems

57
Q

What best describes the final outcome of meiosis

A

Four haploid cells

58
Q

Had a fission fusion society

A

Baboons

59
Q

One female multimale

A

Marmosets

60
Q

Care by both parents is most likely to evolve when

A

Offspring fitness is low with only one parent

61
Q

Frugivore

A

Orangutan

intro to human evolution (4 decks)

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