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 about crossing over, What is crossing over? How is meiosis related ...

What is crossing over? How is meiosis related to this phenomenon? Linked alleles, for instance, A-b and a-B, form the gametes A-b and a-B that maintain the linkage of the allel

Binomial nomenclature, Binomial Nomenclature The modern system of clas...

Binomial Nomenclature The modern system of classification (Binomial nomenclature) accepted by biologists today was proposed in 1758 by the Swedish botanist Linnaeus (1707-1778

Weight of plants - quantitative characters, Weight of Plants - Quantitative...

Weight of Plants - Quantitative Characters Weight is one of the most important quantitative characteristics of plants. Quantitatively growth is best measured on the basis of d

How are lipids classified, Regarding solubility, how are lipids classified?...

Regarding solubility, how are lipids classified? Fats and oils are hydrophobic molecules, i.e., they are non polar and insoluble in water. Lipids in general are molecules with

Quantitative characters - population density, Quantitative Characters - Pop...

Quantitative Characters - Population Density Density denotes the average number of individuals of a particular species in a unit area. In other words, it represents the numeri

Cytokinesis in an animal cell, Cytokinesis in an animal cell: Splitting...

Cytokinesis in an animal cell: Splitting of the cell is called cytokinesis which starts at telophase. In animal cells, microtubules form a furrow in a ring around the cell.

What is the importance of pantothenic acid, What is the Importance of panto...

What is the Importance of pantothenic acid One of the active forms of pantothenic acid is coenzyme A, which is involved in numerous metabolic functions. It is involved in t

Explain the precautions for sub-culturing of a culture, Explain the Precaut...

Explain the Precautions for Sub-Culturing of a Culture 1. Sterilization of inoculating wire before and after the transfer is a must. Sterilized wire should not be kept on labor

Advantage and disadvantage of steam sterilization, Q. Advantage and Disadva...

Q. Advantage and Disadvantage of steam sterilization? Advantage: most efficient and reliable sterilization method available. Its quite simple to operate and relatively inexpens

Describe in detail about retina, Describe in detail about Retina The r...

Describe in detail about Retina The retina is a highly complex layer of nervous tissue. The photoreceptors are rods and cones for scotopic and photopic vision respectively. Th

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