Adaptation and Natural Selection in Clams and Squids

Adaptation and Natural Selection in Clams and Squids -...

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Adaptation and Natural Selection in Snails and Chiton Nicole Mitchell Section 422 Honor Pledge: I pledge that I have neither given nor received unauthorized assistance on this assignment and it is entirely my own creative work.
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Adaptation and natural selection can lead to variations in traits and characteristics between different species. These variations that are selected for (or against) by the environment and predators are caused by mating and genetic mutations. Organisms with traits that are selected for transfer their genes on to their offspring. As an example of this process, there are over 100,000 species of mollusks occupying all sections of the world (Stegenga 2007:57). According to scientists, the mollusk species descended from a H.A.M., or “hypothetical ancestral mollusk” similar to chiton. There are many similar characteristics between snails and chitons that have resulted from environmental adaptations. Scientists can gain a much better understanding of the process of natural selection, adaptation, and a common ancestor of a species by looking at its adapted characteristics.
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This note was uploaded on 05/01/2008 for the course BIOL 101L taught by Professor Stengaga during the Spring '08 term at UNC.

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Adaptation and Natural Selection in Clams and Squids -...

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