Reference no: EM13338048

Q1. 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. Cite References in APA format
Q2. According to the process of natural selection, organisms best adapted to a particular environment produce more offspring who survive to reproduce than other organisms. Over time, the traits carried by these successful organisms come to define the population. We see similar results as a result of artificial selection. We have bred lines of cattle to produce copious quantities of milk, such as Holsteins, while others, like Herefords, produce large amounts of meat for consumption. We have selected different varieties of plants, such as wheat and rice, and especially different breeds of dogs. In artificial selection, humans determine which genes are favored, while in natural selection, environmental influences choose.

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? Cite your references in APA format

Q3. A species is defined as a group of individuals capable of interbreeding. Therefore, individuals who are not capable of interbreeding must be different species, at a minimum. In this discussion you examine the forces that supported the differentiation of different 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. Cite references in APA format.