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Related to the Economics in Practice on p. 628: The emigration of Jewish scientists from Germany to the United States in the late 1930s and early 1940s is an example of a(n) ________ in the United States.
Hamilton's Rule
A principle stating that an act of altruism is favored by natural selection if the genetic gain of the recipient, discounted by the relatedness between the altruist and the recipient, exceeds the cost to the altruist.
Adaptive
Traits or behaviors that enhance an organism's ability to survive and reproduce in its environment.
Multilevel Selection
A concept in evolutionary biology that argues selection operates not just on individuals, but also on groups, genes, or traits at different biological hierarchy levels.
Eusociality
The highest level of social organization in animals, characterized by cooperative brood care, generational overlap, and a division of labor between reproductive and non-reproductive individuals.
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