biology

  
Objectives
· Investigate the process of Natural Selection using the Peppered Moth as the example
· Analyze population trends
· Understand the effect of human impacts on the living world.
NGSS: 3-LS4-2. Use evidence to construct an explanation for how the variations in characteristics among individuals of the same species may provide advantages in surviving, finding mates, and reproducing
· LS4.B: Natural Selection Sometimes the differences in characteristics between individuals of the same species provide advantages in surviving, finding mates, and reproducing. (3-LS4-2)
Introduction
Between 1831 and 1836 Charles Darwin, a naturalist, sailed around the world as a member of a British scientific expedition. During the trip he made observations about the natural world and collected numerous species of plants and animals. These observations led to a book called The Origin of the Species, where he proposed The Theory of Natural Section.  Darwin suggests that “those individuals who possess superior physical, behavioral, or other attributes are more likely to survive than those which are not so well endowed” (a.k.a. survival of the fittest).
One example of an advantage that leads to survival of the fittest is camouflage. The term camouflage means to conceal by disguise. There are many examples in nature of animals that hide from predators. Chameleons are known for their ability to alter their skin color to blend in with the leaves and plants they are hiding in. This enables them to “sneak attack” their prey. Insects often use camouflage to hide from birds or other predators.
The case of the peppered moth in Manchester, England is a well documented scientific study of the value of camouflage in Natural Selection. This case involves two forms of a moth, an insect which relies on camouflage to survive. One form of the moth was white colored and the other form a black color. During the end of the 19th century, with the beginning of the Industrial Revolution, smoke particles from the factories gradually blackened the trees on which the moths rested. What was the result of this change in the environment? How were the moth populations affected? How did the moth populations change? 
Instructions 
               Go to:                   http://peppermoths.weebly.com
               Click on:               A bird’s eye view of natural selection (far right circle with bird)
               Read:                    The Instructions
               Play:                     5 minutes in the Lichen Forest; hit pause and write down your 
                                              percentages in the table below.  Stop and goto the Sooty Forest.
               Play:                     5 minutes in the Sooty Forest; hit pause and write down your 
                                              percentages in the table below.  Stop and answer the questions.
Alternatives:       http://www.techapps.net/interactives/pepperMoths.swf
                               http://www6.district125.k12.il.us/~nfischer/Moth/default.htm
Name:  _____________________
Peppered Moth Analysis
 
Percent Dark Moths
Percent Light Moths

Lichen Forest

Sooty Forest
1.    Explain how the color of moths increases or decreases their chances of survival depending on the environment. 
2.    Application:  500 light colored moths and 500 dark colored moths are released into a polluted forest.  After 2 days the moths were recaptured, make a prediction about the number of each type of moth that would be captured. 
3.    How has the striking change in coloration come about? (Include an explanation of how the dark moth appeared and how the proportion of dark moths changed from 0.0005% to more than 90% in polluted forests.)
4.    Using the four words we discussed in Lecture, explain how the Peppered Moth population is an example of Natural Selection.
5.    Is Evolution a directed or purposeful event?  Is it random?  Or is a population evolving “toward something”?  Explain your answer.

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Order your essay today and save 25% with the discount code: THANKYOUPlace Order
+