According to Hamilton's rule,
A) natural selection does not favor altruistic behavior that causes the death of the altruist.
B) natural selection favors altruistic acts when the resulting benefit to the recipient, corrected for relatedness, exceeds the cost to the altruist.
C) natural selection is more likely to favor altruistic behavior that benefits an offspring than altruistic behavior that benefits a sibling.
D) the effects of kin selection are larger than the effects of direct natural selection on individuals.
E) altruism is always reciprocal.

Question

Quizplus · Accepted Answer

Hamilton's rule states that natural selection favors altruistic acts when the resulting benefit to the recipient, corrected for relatedness, exceeds the cost to the altruist. This means that altruistic behavior is more likely to occur when the recipient is closely related to the altruist and the benefits outweigh the costs. Therefore, option B is the correct answer. Option A is incorrect because Hamilton's rule does not state that altruistic behavior causing the death of the altruist is not favored, as this may still provide a benefit to closely related individuals. Option C is incorrect because Hamilton's rule does not specify which type of altruistic behavior is more likely to be favored. Option D is incorrect because Hamilton's rule does not compare the effects of kin selection to direct natural selection. Option E is incorrect because not all acts of altruism are reciprocal.

According to Hamilton's Rule