BIO331 quiz 1
Which of the following is the best example of kin selection? - answer A male acorn
woodpecker helping his parents feed his siblings
Which of the following examples is most likely not to be a system of sign stimulus and
response? - answer A jay tastes an orange butterfly that is poisonous, spits it out, and
then avoids any future orange butterflies.
A researcher observed variation in plasma testosterone hormone levels in birds that
was associated with variation in aggression: birds with higher levels of testosterone
were more aggressive. In addition, experimental addition of testosterone increased an
individual's level of aggression. At what level of analysis did the researcher investigate
the bird behavior? - answer proximate
How have twin studies proven to be beneficial? - answer Researchers can determine
the difference between environmental and genetic factors.
In a hypothetical population of birds with different wing sizes, ____________ selection
selects for individuals with larger wings. - answer directional
Which is the least accurate statement? Animal personalities ... - answerare exclusively
determined by genetic differences
Identify the false statement about the dominance hierarchy in primates based on this
figure - answerBeing the alpha male is not costly.
A researcher has found variation in courtship behavior among closely related species.
She has determined that simple courtship dances are the ancestral form of the trait,
while complex courtship dances are derived. This research approach is an example of
which of the following? - answercomparative method
A study on a species of wild dog showed that males have spikes in testosterone levels
about a month after birth, and again at two years when they disperse to mate. To
explore the function of these spikes, a researcher castrated two sets of males: one set
right after birth and the other at two years. Those castrated right after birth neither
mated nor dispersed, while those castrated at two years dispersed but did not mate.
What do these data suggest for the effect of testosterone on dispersal and on mating
behavior? - answerOrganizational effect on both dispersal and mating; activational
effect on mating
Who formalized the distinction between proximate and ultimate explanations of
behavior? - answerNikolaas Tinbergen
Which of the following is the best example of kin selection? - answer A male acorn
woodpecker helping his parents feed his siblings
Which of the following examples is most likely not to be a system of sign stimulus and
response? - answer A jay tastes an orange butterfly that is poisonous, spits it out, and
then avoids any future orange butterflies.
A researcher observed variation in plasma testosterone hormone levels in birds that
was associated with variation in aggression: birds with higher levels of testosterone
were more aggressive. In addition, experimental addition of testosterone increased an
individual's level of aggression. At what level of analysis did the researcher investigate
the bird behavior? - answer proximate
How have twin studies proven to be beneficial? - answer Researchers can determine
the difference between environmental and genetic factors.
In a hypothetical population of birds with different wing sizes, ____________ selection
selects for individuals with larger wings. - answer directional
Which is the least accurate statement? Animal personalities ... - answerare exclusively
determined by genetic differences
Identify the false statement about the dominance hierarchy in primates based on this
figure - answerBeing the alpha male is not costly.
A researcher has found variation in courtship behavior among closely related species.
She has determined that simple courtship dances are the ancestral form of the trait,
while complex courtship dances are derived. This research approach is an example of
which of the following? - answercomparative method
A study on a species of wild dog showed that males have spikes in testosterone levels
about a month after birth, and again at two years when they disperse to mate. To
explore the function of these spikes, a researcher castrated two sets of males: one set
right after birth and the other at two years. Those castrated right after birth neither
mated nor dispersed, while those castrated at two years dispersed but did not mate.
What do these data suggest for the effect of testosterone on dispersal and on mating
behavior? - answerOrganizational effect on both dispersal and mating; activational
effect on mating
Who formalized the distinction between proximate and ultimate explanations of
behavior? - answerNikolaas Tinbergen
