Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

Using the scientific method as a framework, how would YOU as a scientist describe how a new species could arise by genetic isolation? Mechanisms of Speciation, What would be your observation, problem, hypothesis, prediction, the experiment and finally the results using your own expertise. BELOW is an answer I received before-based upon Darwin's theory but I would like your own opionion, theorioes/ and or hypothesis and finally the results in this problem.

You can take an actual historic case as an ex. Actually described by Charles Darwin himself when he was part of the Beagle expedition and was visiting the Galapagos islands in the Pacific Ocean outside South America (Equador). He could there on different islands and in different environments observe finches. These finches had however differences in their anatomy (for ex with regards to their beaks). Darwin could observe that these differences were correlated to 1. the environment in which they lived and 2. the way they lived and gathered food. Based on this he made a hypothesis that a wind driven flock of finches at some time in the past had reached these islands from South America and settled there. They had then evolved according to what was the best possible solution for each environmental niche in which each different group of them lived. Darwin thought that each group became rather isolated from the others and adapted to the local needs by "survival of the fittest" for that particular environment and that the survivors then passed these characteristics on to their offspring. You have to realise that Darwin had very little knowledge of genetics and none of mutations. All he knew was practical farming breeding of plants and animals. And he used Malthus' ideas about population growth and competition for food as a model for the competition that led to selective survival of the "fittest" for each environment. If each group was isolated by geography or habits or something else this process would be more prominent. Based on these bird observations he could form this hypothesis and then use it in order to predict other findings as he went along visiting these islands. The predictions turned out to be right and therefore supported his hypothesis. You can see this as a kind of Nature's own experiment which Darwin could observe and draw his conclusions from. Based on these observations and other similar ones from elsewhere he could later form his theory of evolution where isolated groups by adaptations to their different environments become more and more different from each other until they no longer can interbreed and therefore new species have been formed. To some extent Darwin could also confirm parts of this theory by observations from farm breeding of domestic animals and plants and by the breeding of different dog and cat races. Such breeding also formed experiments from which such conclusions could be drawn. I hope I have been able to describe this clearly enough! If anything is unclear please just ask and I'll try to describe.

Biology, Academics

  • Category:- Biology
  • Reference No.:- M926226

Have any Question? 


Related Questions in Biology

How when where and why might you apply your learning of

How, when, where and why might you apply your learning of bioethics in the future if you wanted to be a veterinarian?

1 define partial pressure and how it is calculated2

1. Define partial pressure and how it is calculated. 2. Compare the partial pressure at sea level and at the top of Mt. Everest. Explain why, if oxygen is still at the same concentration in both locations, the partial pr ...

Should humans restore natural ecosystems disturbed by

Should humans restore natural ecosystems disturbed by natural events, such as a hurricane or volcano? Why? What if a species is likely to go extinct if the ecosystem is not restored? What is an example?

Even the most intelligent manager is prone to personal

Even the most intelligent manager is prone to personal biases and pitfalls that can lead to bad decisions. We all carry biases based on our personal experiences. And we can all fall into various traps that lead to decisi ...

1 if humans are in the same class as domestic cats we must

1. "If humans are in the same class as domestic cats we must also be in the same order." True or False? Explain. 2. Explain in your own words how, from an evolutionary standpoint, a desert spring and an island in the oce ...

Outline the differences between a special sensory motor and

Outline the differences between a special sensory, motor and mixed cranial nerve, and briefly describe the functions of each sensory component of the cranial nerve What are EPSPs and IPSPs, and how are they produced? Exp ...

What are the characteristics of tropical waters temperate

What are the characteristics of tropical waters, temperate waters and polar waters?

Concerning a patient with autonomic dysreflexiawith what

Concerning a patient with autonomic dysreflexia: With what you know of the etiology for the hypertension, was labetalol a good choice for managing the blood pressure? Why or why not? If not, what other kind of drug do yo ...

Sickle cell anemia is a very severe conditiona explain the

Sickle cell anemia is a very severe condition. a) Explain the condition and the alleles of the person with the condition and why it is a serious problem; b) What type of chromosomal disorder causes the condition; c) If t ...

What are the characteristics of tropical waters temperate

What are the characteristics of tropical waters, temperate waters and polar waters?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro