These question are in regard to speciation. Questions 1. Imagine an original pop

Question

These question are in regard to speciation.

Questions

1. Imagine an original population beginning to diverge genetically into two different forms. One lineage would go on to become the orca whales that we see today while the other might go on to become their closest whale relatives. At some point before this process, one might assume that the ancestral population of orca whales was more uniform in color, but had a few members with a splotchy pattern of color. Graph the appropriate mode of selection for this process.

2. Provide a one-paragraph written description of a trait in orca whales that may be the result of stabilizing selection.

3. During sympatric speciation, some experts suggest that culture played a big role in reproductive isolation. Vocalization rates and patterns in an ancestral population may have been uniformly distributed. As some families specialized in stalking mammals, vocalizing less became advantageous because prey mammals have goodenough hearing to detect the approaching predators if they are vocalizing. In other families that specialized in hunting salmon, vocalizing more became advantageous for more sophisticated communication between hunting individuals working together to corral groups of fish. Graph the appropriate mode of selection for this process.

Explanation / Answer

1) prolonged directional selection will be the main reason under the evolutionary change which select uniform color over patchy spot during the divergence elolution.

2) body length is one of the trait that orca whale go for stablizing selection. This happens because of sudden environmental change. Initially size variation is the great challange to select the orca population but during evolutionary change body length comes in the natural selection and stabilzes to adapat the sea environment.

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