Download LifeHistories Multiple Choice Identify the letter of the choice that best

LifeHistories
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
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1. A marine hydra reproducing by budding would most likely would show a high level of fitness in and
quickly colonize a habitat modified by introduction of acid waste leaching from surface mining activity.
a. true
b. false
2. During sexual reproduction genetic variation develops during gamete production and by new genetic
combinations developed at fusion of gametes.
a. true
b. false
3. In a stable environment an organism reproducing sexually would show the greatest number of individuals
showing a high level of fitness.
a. true
b. false
4. Hermaphroditic organisms such as earthworms generally do not find a mate in order to produce sexual
offspring
a. true
b. false
5. A plant displaying both male and female flowers on the same plant is termed
a. bisexual
c. Dioecious
b. monoecious
d. perfect
6. Monogamous pair bonds
a. are rare amongst animals
d. all of these
b. are more likely to form when both genders e. a and b only
share equally in care for young
c. are most likely to develop in r-selected
species
7. Polygamous mating systems
a. would typically occur amongst organisms d. a and c
which display on a Lek
b. would involve extended parental care by e. b and c
males
c. could involve organisms in which a single
male establishes dominance
8. Polyandrous mating systems
a. may involve incubation of eggs and care c. usually result in the creation of a
for young by the male only
matriarchal social structure
b. provide little fitness advantage for males d. result from a situation in a situation in
which females incur massive credit card
debts and cannot remain at the same
address for any length of time
9. The development of an ovum without fertilization by a male is called
a. budding
c. hermaphroditism
b. pathogenesis
d. monoecism
10. Which of the following is not a form of asexual reproduction
a. budding
c. development from rhizome
b. cloning
d. hermaphroditic
11. Evidence of previous reproductive success is a possible criteria involved in sexual selection.
a. True
b. False
12. Intrasexual selection is only documented for females.
a. True
b. False
13. Direct, aggressive competition among individuals of the same gender for the opportunity to mate with the
opposite sex is characteristic of
a. intrasexual selection
c. polyandry
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b. Polygyny
d. intersexual selection
In many animals the males make most of the decisions regarding selection of a mate due to their colorful
displays or appearance.
a. true
b. false
Intersexual selection could involve
a. evidence of prior reproductive success
c. response to plumage patterns (in birds) or
ability to attract pollinators (in flowers)
b. generally involves females as the agent of d. all of these
selection
Knobs on the dorsal fin of male fantail darters
a. may be eggs
d. increase fitness of individuals displaying
this characteristic
b. may be the result of a mutation
e. all of the above
c. may suggest evidence of reproductive
success
According to the handicap hypothesis
a. males with more conspicuous coloration c. males who warn other species of their
patterns are eliminated from the
presence tend to attract more females to
population
their territories
b. males with brighter/more conspicuous
d. males who win one-legged butt-kicking
coloration patterns are more likely to be
contests probably have other genes for
healthy or have an increased ability to
fitness as well
escape predation
A Type I survivorship curve is the result of which of the following life-history traits?
a. parents provide extended care for young c. relatively high infant mortality
b. large numbers of young are born
d. death rates consistent over time
A survivorship curve that involves producing very few offspring, each of which has a high probability of
surviving to adulthood, is typical of
a. sea stars
c. oysters
b. elephants
d. mice
If most of the individuals of a human population are in their pre- reproductive years, you would expect the
population size to _____ after 20 years.
a. move to another area
c. decrease
b. increase
d. become senior citizens
Which of the following is most clearly a case of density-dependent population regulation?
a. the summer drying out savanna grass on a c. the first hard frost of a fall killing a
population of sap feeding insects
population of mosquitoes
b. spread of a dangerous new flu strain
d. the occurrence of rainstorms for an
transmitted by sneezing
opportunistic desert annual
Matching
a. disease, predation
b. depends on birth rate, death rate, as well
as emigration and immigration
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23.
24.
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carrying capacity
exponential growth
population growth rate
density-dependent controls on population
c. the maximum number of individuals
sustainable by an environment’s resources
d. population growth not subject to density
dependent or independent controls
____ 26. r-selected species are characterized by
a. slow population growth
c. long life expectancy
b. slow development
d. high juvenile mortality
____ 27. Direct, aggressive competition among individuals for the opportunity to mate with the opposite sex is
a. intrasexual selection
c. monoecious
b. polygamy
d. parthogenesis
____ 28. The true measure of an organism’s reproductive success is
a. its fitness
c. the total number of offspring produced
b. its survival
d. its life span
____ 29. Budding is an example of
a. pathogenesis
c. rhizomous spread
b. asexual reproduction
d. reproduction by a hermaphrodite
____ 30. Plants which produce male and female flowers on the same plant are`
a. a-sexual
c. hermaphrodite
b. monoecious
d. capable of budding
____ 31. Monogamous pair bonds are more likely to occur in species in which both sexes are involved in providing
extended care for the young.
a. True
b. False
____ 32. The handicap hypothesis
a. provides one possible explanation for
c. explains why more mature males of a
rationale for female preference for males
species generally sire most of the
of a species with bright plumage or body
offspring
colorations
b. states that individuals surviving despite a d. explains why one-legged men make better
broken wing or leg might have genetically
contestants in butt-kicking contests.
superior traits, or adaptations
____ 33. One advantage of a sexually reproducing population is that it typically has a higher level of genetic variation
than an asexually reproducing population.
a. True
b. False
____ 34. A group of plant species collectively referred to a ruderals are most likely to become dominant in a climax
ecosystem.
a. True
b. False