	Save up to 50% if you register now!


Moopuna: Home - About Moopuna - Search - Help	Login - Register Now



	Site Search:

Term Papers Categories

Acceptance Essays
Alcohol & Drugs
American History
Anatomy & Physiology
Animal Science
Anthropology
Architecture
Arts
Astronomy
Aviation
Biographies
Biology
Book Reports
Business
Chemistry
Computers & Internet
Creative Writing
Current Events
Economics
Education
Engineering
English
Environmental Issues
Ethics
European History
Film & Cinema
Foreign Languages
Geography
Government
Health & Beauty
Health Care
History
Human Sexuality
Legal Issues
Marketing
Mathematics
Medicine
Movies
Music
Mythology
Philosophy
Physics
Poetry
Political Issues
Political Science
Psychology
Religion
Science
Shakespeare
Social Issues
Sociology
Speech & Communications
Sports & Games
Supernatural Issues
Technology
Theater
World History
Zoology

Charles Darwin And The Development And Impact Of The Theory Of Evolution By Natu

Statistics

Counts

Total Pages: 15.19
Total Words: 3798
Total Characters: 20111
Number of Sentences: 255

Averages

Words per Sentences: 14.89
Characters per Words: 5.3

Readability

Flesch Reading Ease: 55.71
Fog Scale Level: 12.56
Flesch-Kincaid Grade Level: 9.19

Charles Darwin and the Development and impact of the Theory of Evolution by Natural and Sexual Selection

Introduction

     It is commonly thought today that the theory of evolution originated from Darwin in the

nineteenth century.  However, the idea that species mutate over time has been around for a long

time in one form or another.  Therefore, by Darwin’s time the idea that species change from one

type into another was by no means new, but was rejected by most because the proponents of

evolution could not come up with a satisfactory mechanism that would explain this change.

     The most influential evolutionary theories prior to Darwin were those of Lamarck and

Geoffroy St. Hilaire, developed between 1794 and 1830.  Lamarck suggested that species evolve

through the use or disuse of particular organs.  In the classic example a giraffe that stretches its

neck slightly to reach higher leaves will gain in neck length, and this small gain would be passed

on to its offspring.  Geoffroy, on the other hand suggested that the change was discontinuous,

large in magnitude, and occurred at the production of offspring.  However, these theories of

evolution were based on a priori explanations that offered no demonstrated mechanism.

     Darwin’s theory of evolution differs in that it is based on three easily verified observations.

“First, individuals within a species vary from one another in morphology, physiology, and

behavior.  Second, variation is in some part heritable so that variant forms have offspring that

resemble them.  Third, different variants leave different number of offspring”.  Darwin than

proceeded to elaborate on the mechanism of evolution by suggesting that in the universal struggle

for life, nature “selects” those individuals who are best suited (fittest) for the struggle, and these

individuals in turn reproduce more than those who are less fit, thus changing the composition of ...

Please login to view comments from other users.

Subscription Plans Price Savings

1 Month (automatic renewal) $29.95

3 Month (automatic renewal) $59.95 32 %

6 Month (one-time billing) $89.95 50 %

Pay with:

If you are having problems registering, please don't hesitate to contact us.