Which scientist devised a rule that predicts when natural selection should favor altruism?

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#Question id: 13172

#Unit 10. Ecological Principles

The main reason polar regions are cooler than the equator is because

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#Question id: 7049

#Unit 5. Developmental Biology

Invaginating cells during amphibian gastrulation, in which the main body of each cell is displaced toward the inside of the embryo while maintaining contact with the outside surface by way of a slender neck-

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#Question id: 32923

#Unit 2. Cellular Organization

Choose the correct  answer from the options given below:

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#Question id: 3437

#Unit 11. Evolution and Behavior

Learning in which an associated stimulus may be used to elicit the same behavioral response as the original sign stimulus is called

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#Question id: 33376

#Unit 1. Molecules and their Interaction Relevant to Biology

Right-handed helical conformation has