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

Define malnutrition - effects on milk and effects on mothers, Define Malnut...

Define Malnutrition - Effects on Milk and Effects on Mothers? Milk is the sole source of nourishment for many infants for upto 6 months or a year or even more. Therefore, the r

Form of protozoan reproduction, Q. Which is the form of protozoan reproduct...

Q. Which is the form of protozoan reproduction that generates more variability? Sexual reproduction always generates extra genetic variability than asexual reproduction. That i

Energy during myocardial infarction, Q. Energy during myocardial infarction...

Q. Energy during myocardial infarction? As mentioned above, patient who have recently suffered from an attack of myocardial infarction are hospitalized in the intensive cardiac

Define fats required for underweight - nutritional care, Define Fats requir...

Define Fats required for underweight - nutritional care? Fats: We know that fats are concentrated source of energy (lg = 9 Kcals). Fats are capable of increasing the energy val

What percentage should be homozygous, If 40% gene pool is heterozygous then...

If 40% gene pool is heterozygous then what percentage should be homozygous?

Explain about skeletal muscle, Explain about Skeletal muscle These are ...

Explain about Skeletal muscle These are attached to the bones by tendons, which help in the movement of the part of the skeleton. These muscles are controlled by our conscious

Explain briefly about foams, Explain briefly about Foams   Consider the...

Explain briefly about Foams   Consider the following example. Take some liquid in a glass and agitate or shake it vigorously. What do you observe at the top of the liquid. Yes,

Define the ionizing radiation for sterilization, Q. Define the Ionizing rad...

Q. Define the Ionizing radiation for sterilization? Ionizing radiation are high energy electromagnetic waves including X-rays, gamma rays, particulate radiation, cosmic rays wh

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