How Would Self-Sacrifice of Male Redback Spiders Be an Adaptive

question 5

Multiple Choice

How would self-sacrifice of male redback spiders be an adaptive behaviour?

• A)Males only use self-sacrificing behaviour once they have mated with several females and have exhausted their sperm supplies.
• B)The chance of a male meeting more than one female is quite low;self-sacrifice maximizes mating time with and sperm transfer to any female the male finds.
• C)Males are able to mate with one female,then mate with another female nearby,before being devoured by the first female.
• D)When males meet a female and self-sacrifice,it activates enzymes that make his sperm more fit and able to fertilize more eggs.

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