Test 2 Flashcards
A primate with a body weight of 400g (less than a pound) is most likely
An insectivore
The brilliant blue coloration of male vervet monkey tested entails an example of
Intersexual selection
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….
Food; Acess to females
Which of the following has a fission fusion society
Bonobos
Which of the following is a cost to primate sociality
Increased competition between group members
Humans, apes, and cercopithecoids (OWM) are members of the infraorder Catarrhines. What is their shared dental formula
2 incisors- 1 canine- 2 premolars- 3 molars
The only autosomal trisomy that allows the survival of the individual until adulthood is
Down’s syndrome
Today the order primates is divided into two suborders
Strepsirhini and haplorhini
Catarrhines include
Old world monkeys, apes and humans
Somatic cells
Are the cells of the body that are not gametes
Primate species that used sex to alleviate tensions within group members
Pan paniscus
Insectivore
Tarsier
True or false: According to the new classification for the order primates, tarsiers are more closely related to lemurs, lorises, and galagos
False
Chimpanzees reside in
Africa
The only source of totally new genetic material is
Mutation
Pan paniscus
Bonobo
Cercopithecoids
Have dental formulas 2-1-3-3, have bilophodont molars, have postorbital bars
Humans are
Both haplorhines and Catarrhines
One male multi-female
Gorillas
Monogamous
Gibbons
Orangutans location
Southeast Asia
Brachiation
Gibbons
Genetic drift
Allele frequency change due to sampling error each generation
Haplorhines include
Tarsiers, hominoids, Cercopithecoids, platyrrhines
Quadrumanous locomotion
Pongo pygmaeus
Catarrhines
have dental formula 2-1-2-3, include humans, Cercopithecoids and hominoids, have narrow nostrils that face down
Which species live in multimale- multifemale groups
Chimpanzees
Platyrrhines location
Central and South America
Which process results in two identical diploid daughter cells
Mitosis
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
2:1:3:3
Which process occurs when selection world against the extremes of a trait and favors the intermediate phenotype
Balancing/ stabilizing selection
The primary emphasis on the visual sense is reflected in
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
Prosimians
Tarsiers, galagos, lorises, lemurs
Folivore
Gorilla
A rhinarium is only present among
Strepsirhines
Gene flow
Migration with reproduction
In primates postorbital closure is displayed by….. while postorbital bar is displayed by….
Haplorhines; Strepsirhines
Pongo pygmaeus
Orangutan
Multimale- multifemale
Chimpanzees
Fission and fusion
Macaca mulatta
Genetic drift refers to random changes in allele frequencies from one generation to the next
True
Hominoids
Have orally positioned shoulder blades increasing range of movement of forelimb/ upperlimb, have Y-5 molars, include all apes
Platyrrhines
Have sideways oriented nostrils, are the most arboreal of the monkeys, have dental formula 2-1-3-3, have a prehensile tail
Gorrilas location
Africa
Primates display the following features
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
Anthropoids
Platyrrhines, Cercopithecoids, Hominoids
The olfactory bulb of a lemur is evidently larger than that of an opossum
False
The brilliant blue coloration of male vervet monkeys scrota entails an example of
Intersexual selection
Features that are homologous are
Similar due to shared ancestry
What is the scientific name of chimpanzee
Pan troglodytes
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
Directional selection
Lemurs location
Madagascar
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
Genetic drift
Vertical clinging and leaping
Tarsiers
Strepsirhines
Lorises, lemurs and galagos
Tarsiers
Weigh 500g or less, have huge eyeballs, are insectivores, have pointy teeth, have monogamous social systems
What best describes the final outcome of meiosis
Four haploid cells
Had a fission fusion society
Baboons
One female multimale
Marmosets
Care by both parents is most likely to evolve when
Offspring fitness is low with only one parent
Frugivore
Orangutan
