Why have sexual reproduction?
What is not necessarily a social interaction?
A) Parental care
B) Sexual reproduction
C) Dispute over territory
Eusociality is a system in which ____
A) only males care for the young.
B) the young are cared for cooperatively.
C) there are no castes providing different services.
D) all the young leave once they reach adulthood.
In the case of the Australian redback spider, sexual cannibalism _____
A) prevents the male from mating with the female.
B) helps to build eggs with nutrients from the male's body.
C) allows a male to mate multiple times.
D) prevents the male from mating longer.
Which of the following might reduce the prevalence
of the somersault behavior?
A) Lower male survivorship prior to first mating
B) Lower male survivorship between first and
second mating (if they survive the first)
C) Higher paternity when cannibalized
D) Higher paternity when not cannibalized
In species with polyandrous mating systems _________.
A) Parental care is usually higher in males
B) Parental care is usually higher in females
C) Males have larger gametes
D) Hermaophroditism is common
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