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asciandwildlifebio, Graduate Student
Category: Homework
Satisfied Customers: 1810
Experience:  M.S. Bio, B.S. in Animal Science and Wildlife Biology. Comprehensive Spanish Written and Oral Skills
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According to the Theory of Evolution, Natural Selection is

Customer Question

According to the Theory of Evolution, Natural Selection is the mechanism by which evolution occurs. Remember: evolution occurs at the level of the population. Individuals do not evolve, populations evolve.

The process of Natural selection is based on the following four postulates (listed in your textbook on page 288):

Postulate 1 - Individual members of a population differ from one another in many respects.

Postulate 2 – At least some of the differences among members of a population are due to characteristics that may be passed from parent to offspring. That is, they are heritable or genetic.

Postulate 3 - In each generation, some individuals in a population survive and reproduce successfully but others do not.

Postulate 4 – The fate of individuals is not determined by luck. Instead, an individual’s likelihood of survival and reproduction depends on its characteristics. Individuals with advantageous traits survive longest and leave the most offspring, a process known as Natural Selection.

Assignment: Choose ONE animal species. Your goal is to describe the way in which an evolutionary change might occur for a particular characteristic (trait) of that species as a result of natural selection. The characteristic could be something like coloration pattern, length of the limbs, or size of the teeth or beak, or any measurable trait that is inherited.

The organism you choose should be a real one but the evolutionary change you describe can be real or theoretical.

In your own words,

1. Explain how the change in this trait occurs in terms of the four postulates listed above and in the book. You will describe what the population starts out like at time zero and then what it will look like at a later time, as a result of natural selection.
2. Make sure to explain the process by which the changes occurred. What is the selective pressure? Explain why the change might confer more fitness to a particular environment?

Tips: Make sure to include the following in your answers to a and b above:

Clearly state the name of the SPECIES you are going to be talking about for this assignment. (Make sure you know what is meant by a species.)

Also, clearly state what population of the species you are going to talk about by specifying its geographic location. (Make sure you understand what a “population” is.)

Clearly state the characteristic (trait) of the population that you are going to be talking about and explain how this trait varies among individuals.

Explain what change occurs in the environment that causes a change in the above characteristic (trait)?
Submitted: 8 years ago.
Category: Homework
Expert:  asciandwildlifebio replied 8 years ago.
Hello Butterfly, I can complete this answer for you! Please look for your answer within 30 minutes.
Customer: replied 8 years ago.
Ok, will this be original or would I have to reword?
Expert:  asciandwildlifebio replied 8 years ago.
I have done this assignment before. I can provide with pre-formulated answer, and you could reword it. This is quicker. Or, you can wait, and I can create a new answer. Which would you prefer?
Customer: replied 8 years ago.
I would prefer an original one, I'm currently working on a different assignment thats taking longer than expected and I wont have time to re-word.
Expert:  asciandwildlifebio replied 8 years ago.
Okay. Please look for your answer shortly.
Customer: replied 8 years ago.
Expert:  asciandwildlifebio replied 8 years ago.

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Customer: replied 8 years ago.
I thank you so much, would you have time to complete another assignment for me today? Or would I have to post it?
Expert:  asciandwildlifebio replied 8 years ago.
Feel free to create a new post and put my name in the title ( For: asciandwildlifebio) and you can request me. I will take a look at it! Thank you for working with me.
Customer: replied 8 years ago.
Ok I'll do it now
Customer: replied 8 years ago.
I posted but I dont think your name is XXXXX XXXXX title, I think I put it in subject.