PBSI 311 Exam 2 Question and answer
verified to pass 2025/2026
According to Reading #5a, which of the following explains why lactating golden snub-
nosed monkey mothers should be reluctant to nurse another female's offspring? -
correct answer ✔Producing milk is energetically costly.
According to Reading #5a, all of the following regarding the maintenance of
allomaternal nursing in golden snub-nosed monkeys are true EXCEPT? - correct
answer ✔The behavior has a negative impact on future reproductive success of
allonursers.
According to Reading #5b, what makes the findings of self-medication in Rekambo
chimpanzees significant? - correct answer ✔Other than humans, chimpanzees are the
only animal that has been observed to treat the wounds of others.
According to Reading #5b, anticipation of infection has been observed in which of the
following animals? - correct answer ✔Wood Ants
According to Reading #6a, all of the following apply to drumming in male cockatoos
EXCEPT? - correct answer ✔They are the only nonhuman animal species known to
engage in drumming behavior.
According to Reading #6a, which of the following applies to drumming in cockatoos
during courtship? - correct answer ✔Drumming males impress females more than non-
drumming males.
According to Reading #6b, the main way that a male Japanese pufferfish attracts a
female's attention is by - correct answer ✔the intricacy and impressiveness of his sand
wheel.
According to Reading #6b, which of the following applies to sand wheels made by male
Japanese pufferfish? - correct answer ✔They restrict water flow into the center which
protects the eggs that females lay.
According to Reading #7a, which of the following is true of trophic egg feeding in mimic
poison frogs? - correct answer ✔Males watch over offspring while females eat so they
can produce trophic eggs.
According to Reading #7a, all of the following apply to the mating system of mimic
poison frogs EXCEPT? - correct answer ✔Increasing breeding pool size encouraged
partners to cooperate.
verified to pass 2025/2026
According to Reading #5a, which of the following explains why lactating golden snub-
nosed monkey mothers should be reluctant to nurse another female's offspring? -
correct answer ✔Producing milk is energetically costly.
According to Reading #5a, all of the following regarding the maintenance of
allomaternal nursing in golden snub-nosed monkeys are true EXCEPT? - correct
answer ✔The behavior has a negative impact on future reproductive success of
allonursers.
According to Reading #5b, what makes the findings of self-medication in Rekambo
chimpanzees significant? - correct answer ✔Other than humans, chimpanzees are the
only animal that has been observed to treat the wounds of others.
According to Reading #5b, anticipation of infection has been observed in which of the
following animals? - correct answer ✔Wood Ants
According to Reading #6a, all of the following apply to drumming in male cockatoos
EXCEPT? - correct answer ✔They are the only nonhuman animal species known to
engage in drumming behavior.
According to Reading #6a, which of the following applies to drumming in cockatoos
during courtship? - correct answer ✔Drumming males impress females more than non-
drumming males.
According to Reading #6b, the main way that a male Japanese pufferfish attracts a
female's attention is by - correct answer ✔the intricacy and impressiveness of his sand
wheel.
According to Reading #6b, which of the following applies to sand wheels made by male
Japanese pufferfish? - correct answer ✔They restrict water flow into the center which
protects the eggs that females lay.
According to Reading #7a, which of the following is true of trophic egg feeding in mimic
poison frogs? - correct answer ✔Males watch over offspring while females eat so they
can produce trophic eggs.
According to Reading #7a, all of the following apply to the mating system of mimic
poison frogs EXCEPT? - correct answer ✔Increasing breeding pool size encouraged
partners to cooperate.
