Biological species concept, Biology

Assignment Help:

The biologicaI species concept claims that species consist of natural populations and that species are real and objective. They are not man-made subjective abstraction.

According to this concept, the members of a species are a reproductive community. The species is also an ecological unit. It interacts as a unit with other species with which it shares the resources of the environment. The species is also a gene pool. These aspects of the biological species concept are made clear in the famous definition of the Harvard evolutionist Ernst Mayr. According to Mayr, "Species are groups of interbreeding natural populations that are reproductively isolated from other such groups". The biological species is not only a distinct unit at any given time, but it also has the evolutionary capacity to change continuously over long periods of time, measured in millions of years.


Related Discussions:- Biological species concept

Explain algae have cell wall, Algae have cell wall made up of: 1. Cellul...

Algae have cell wall made up of: 1. Cellulose, galactans and mannans 2. Hemicellulose, pectins and proteins 3. Pectins, cellulose and proteins 4. Cellulose, hemicellulo

Why different types of seizures may occur, Why Different types of seizures ...

Why Different types of seizures may occur? Different types of seizures may occur: 1) Generalized or tonic-clonic seizures, where the entire brain curtex is involved and post

Explain procedure for test the presence of sugar in honey, Procedure for Te...

Procedure for Test the Presence of Sugar in Honey? 1. Mix 5 grams of honey with 5 ml ether in a mortar and pestle. 2. Decant off the ether extract into an evaporating dish.

Explain isozymes, ISOZYMES Sometimes an  enzyme present  in  the  same ...

ISOZYMES Sometimes an  enzyme present  in  the  same  organism is  found  to  have different molecular forms but  catalyzing the  same  reaction. These are called  isozymes. Th

Explain fats requirements during thyphoid, Explain fats requirements during...

Explain fats requirements during thyphoid Fats: Use of fats should be in moderation. This is because the typhoid patient has a compromised ability to digest and assimilate due

What are the clinical symptoms of typhoid, Clinical symptoms of typhoid are...

Clinical symptoms of typhoid are: 1.  Graded fever which follows an upward  ladder pattern. 2.  Abdominal pain, cramps and diarrhoea. 3.  Anorexia and vomiting. 4.  In

What is more and less biologically complex, What is more and less biologica...

What is more and less biologically complex out of whey protien and ice cream and why?

Evolution of heart in higher animals, Evolution of heart in higher animals ...

Evolution of heart in higher animals The circulatory system in higher animals has undergone several changes during evolution. The heart has become totally muscular. Th

Define about fusarium - identification of fungi and yeast, Define about the...

Define about the Fusarium - Identification of Fungi and Yeasts? Classification Kingdom - Mycetae Division - Amastigomycotina Subdivision - Deuteromycotina Class - D

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