Mastering Biology Assignment 7

Flashcard maker : Patsy Brent
Which of the following statements about human evolution is correct?
a. The upright posture and enlarged brain of humans evolved simultaneously
b. Human evolution has occurred within an unbranched lineage
c. Human ancestors were virtually identical to extant chimpanzees
d. Modern humans are the only species to have evolved on earth
e. Fossil evidence indicates that early anthropoids were arboreal and catsized
Which is a genus that has only one extant species?
a. primates
b. hominoids
c. hominins
d. anthropoids
e. homo
Which of the following are considered hominoids?
a. monkeys
b. lemurs
c. tarsiers
d. lorises
e. orangutans
Which of these traits is most strongly associated with the adoption of bipedalism?
a. fingerprints
b. enhanced depth perception
c. opposable big toe
d. repositioning of foramen magnum
e. shortened hindlimbs
Which of these hominin traits seems to have occurred before the others?
a. increased brain size
b. symbolic thought
c. tool use
d. language
e. bipedalism
Humans are:
a. Australopithecus
b. homo erectus
c. ardipithecus
d.homo sapiens
e. homo habilis
Which of these species demonstrates symbolic thought, art, and full-blown language?
a. H. habilis
b. H. heidelbergensis
c. H. sapiens
d. H. ergaster
e. H. erectus
Which of the following statements is correct in regard to Homo Erectus?
a. their fossils are not limited to Africa
b. H. erectus was not known to use tools
c. H. erectus evolved before H. habilis
d. On average, H. Erectus had a smaller brain than H. Habilis
e. H. erectus had a level of sexual dimorphism less than that of modern humans
As humans diverged from other primates, which of the following appeared first?
a. making stone tools
b. an enlarged brain
c. the development of technology
d. bipedal locomotion
e. language
Which of these species was the first to have some members migrate out of Africa?
a. H. erectus
b. H. ergaster
c. H. sapiens
d. H. heidelbergensis
e. H. habilis
Which term is most nearly synonymous with apes?
a. hominoids
b. homo
c. anthropoids
d. hominins
e. primates
Arrange the following taxonomic terms from most inclusive to least inclusive:
1. hominoids
2. hominins
3. Homo
4. anthropoids
5. primates
5, 4, 1, 2, 3
This is a gene linked to the development of speech in hominids
a. Hox
b. Dlx
c. Otx
d. FOXP2
e. more than one of these
Which of these species was the first to craft stone tools?
a. H. erectus
b. H. ergaster
c. H. heidelbergensis
d. H. sapiens
e. H. habilis
Which of these is a trend in hominin evolution?
a. well-developed claws for clinging to trees
b. a shoulder joint increasingly adapted to brachiation
c. increased ability to switch back and forth between bipedalism and quadrupedalism
d. increased brain to body ratio
e. a shortened period of parental care of offspring
How are primates different from all other mammals?
a. opposable thumbs in many species
b. arboreal lifestyles
c. ability to produce milk
d. placental embryonic development
e. hairy bodies
Which of these primate groups is most closely related to humans?
a. apes
b. old world monkeys
c. lorises
d. prosimians
e. new world monkeys
_________ are the oldest known primate group
a. apes
b. prosimians
c. anthropoids
d. hominids
e. monkeys
The primates that spend the most time walking upright are:
a. apes
b. prosimians
c. new world monkeys
d. hominids
e. old world monkeys
Which of these anthropoid groups consists of primates who are mostly tree-dwellers and whose forelimbs and hind limbs are about equal in length?
a. monkeys
b. hominids
c. prosimians
d. primates
e. apes
Which of these primate groups lives in trees in central and South America and have nostrils that are wide open and far apart?
a. hominids
b. apes
c. new world monkeys
d. anthropoids
e. old world monkeys
The most common kind of dispersion in nature is
a. uniform
b. clumped
c. indeterminate
d. random
e. dispersive
A table listing items such as age, observed number of organisms alive each year, and life expectancy is known as a(n):
a. mortality table
b. life table
c. survivorship table
d. insurance table
e. rate table
Demography is the study of:
a. life expectancy of individuals within a population
b. reproductive rates of a population during a given year
c. death and emigration rates of a population at any moment in time
d. the vital statistics of populations and how they change over time
e. the survival patterns of a population
Which of the following groups would be most likely to exhibit uniform dispersion?
a. red squirrels, who actively defend territories
b. cattails, which grow primarily at edges of lakes and streams
c. dwarf mistletoes, which parasite particular species of forest tree
d. moths in a city at night
e. lake trout, which seek out deep water
Life tables are most useful in determining which of the following?
a. the fate of a cohort of newborn organisms throughout their lives
b. carrying capacity
c. immigration and emigration rates
d. population dispersion patterns
e. reproductive rates
Which of the following describes having ore than one reproductive episode during a lifetime?
a. allee effect
b. iteroparous
c. cohort
d. dispersion
e. semelparous
Uniform spacing patterns in plants such as the creosote bush are most often associated with:
a. chance
b. the concentration of nutrients within the population’s range
c. competitive interactions among individuals in the population
d. patterns of high humidity
e. the random distribution of seeds
Pacific salmon and annual plants are excellent examples of:
a. dispersion
b. iteroparous reproduction
c. semelparous reproduction
d. cohort disintegration
e. allee effect

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