Elaborate evolution by natural selection , Biology

Assignment Help:

Elaborate Evolution by Natural Selection ?

The conelaboratecept of natural selection lies at the heart of Darwin's Theory of Evolution. Darwin understood that plants and animals being raised for food or show in his day were selectively bred, or artificially selected for certain valued traits. Darwin came to understand that environmental factors such as predators, food supply, physical habitat, and climate functioned in much the same way to select and favor specific characteristics or traits. Those organisms within a population that could effectively reproduce in a given environment would be able to reproduce effectively.

Evolution might have occurred as described in the example below. Genetic recombination leads to variation among the individuals of any population, in this case, in the neck length in a population of giraffes. In a changing environment, food resources is consumed in order of accessibility. As food becomes scarce, most giraffes suffer from poor health, or starvation. However, giraffes with longer than normal necks are able to reach more food, and have an advantage in surviving to produce offspring, who are genetically likely to be longer necked as well. Over time, by natural selection, the population evolves into one of longer necked giraffes.

 


Related Discussions:- Elaborate evolution by natural selection

Explain tick-borne encephalitis, Tick-Borne Encephalitis (TBE ) TBE occu...

Tick-Borne Encephalitis (TBE ) TBE occurs in Scandinavia, Western and Central Europe and countries of the former USSR, mainly in rural forested areas. Risk is greatest from Apri

Asexual reproduction, Which type of asexual reproduction takes place in mon...

Which type of asexual reproduction takes place in monocystis?

Closed style - style of stigma interaction, Closed Style - Style of Stigma ...

Closed Style - Style of Stigma Interaction Cotton shows an epidermis with stomata, a cortex of thin-walled parenchyma with several vascular bundles and strands of transmitting

Explain the alpha-helix and the beta-sheet protein, Normal 0 fa...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Limb regeneration in anuran amphibians, Limb Regeneration in Anuran Amphibi...

Limb Regeneration in Anuran Amphibians We are already aware that the limb of adult frogs does not regenerate later than amputation. Though, some regeneration has been found to

State the term - rCBF, State the term - rCBF In rCBF, the participant i...

State the term - rCBF In rCBF, the participant inhales a small amount of a radioactive gas such as xenon, which is absorbed into the bloodstream and thus transported around the

Enzymes, what happen to a denatured enzyme regarding its functionality? how...

what happen to a denatured enzyme regarding its functionality? how can that result be explained with the help of the lock and key model?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd