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The mechanism that Darwin proposed forevolution is natural selection. Because resources are limited in nature, organisms with heritable traits that favor survival and reproduction will tend to leave more offspring than their peers, causing the traits to increase in frequency over generations.
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Explain why Malate has negligible absorbance in the U.V. (ultraviolet) region compared to Fumarate. Use structural diagrams for both molecules as references.
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"Sexual selection is a special case of natural
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The members of natural populations vary with respect to characteristics at all levels. They differ in their morphology, their microscopic structure, their chromosomes, the amino acid sequences of their proteins....
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Use the theory of natural selection to explain the changes seen in the mating calls of the new isolated southern male frogs
The male grasps the female around the torso with his forelimbs and fertilizes the eggs as they emerge. The male often grabs the female well in advance of actual egg...
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