Project #50715 - Evolution and adaption

1. Fossil evidence:  Pretend you are hiking down through the Grand Canyon or another area rich in fossils. How do the fossils you see provide evidence for Darwin’s idea of “descent with modification”, or evolutionary theory? In your response, be sure to define the principles of evolution that support your evidence.

2. Natural Selection: Based on what you know about the scientific method, choose an animal or plant and explain how you would determine which individuals in a population were best adapted to their environment. What evidence would you need and why? What characteristics would be evidence? Is there a time frame that you would have to take into account? Why or why not?

3. Distinguishing species: Select one of the six reproductive barriers described in your text. What effects do you think that climate change will have on this particular reproductive barrier? Please use a particular species as an example that hasn’t already been covered, in your description.

"Reproductive barriers- prevent members of different species from interbreeding.

-behavioral isolation: members of a species often indentify each other through specific rituals, markings, or smells. A peahen, for example, will only mate with a peacock who displays his large and colorful feather."

Each question should be approx. 125 words (collectively the project should be 375 words)and be in proper apa format with at least one credible source.

Subject Science
Due By (Pacific Time) 12/07/2014 04:00 pm
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