Various definitions of species, Biology

Assignment Help:

In biology, a species is smallest and basic unit of classification. Each species is placed within a single genus. For example biological name of human being is homosapiens. Here homo is the genus and sapiens is the species of humans.

Earlier species was thought to be an indivisible, stable unit but in modern taxonomy subdivisions of species, such as sub species have been created which help in our understanding of classification.

 

Definition of species

According to ernst mayr"a species is a group of fertile organism that can interbred and produce fertile offspring of both the gender".

The modern concept considers species as a group of actually or potentially inter breeding natural population of closely resembling individuals.  Species can also be defined on the basis of various perspectives, which are as follows.

Morphological: a population or group of population that differ morphologically from each other eg. Chicken-duck.

Biological: a set of actually or potentially inter breeding populations or two organisms that are able to reproduce naturally to produce  fertile offspring of both the genders.

Ecological:  a set of organism adapted to particular set of resources, called a niche, in environment.

Genetic: based on similarity of DNA of individuals or populations.

 


Related Discussions:- Various definitions of species

Light harvesting in green plants, Sunlight is absorbed by chlorophyll molec...

Sunlight is absorbed by chlorophyll molecules.  Chlorophyll is a porphyrin in that nitrogen atoms are coordinated to a magnesium ion instance for it is a magnesium porphyrin.  This

Internal and external respiration, External Respiration: Diffusion of...

External Respiration: Diffusion of oxygen into blood and carbon dioxide into alveoli (external respiration)  is the diffusion of oxygen from air in  the alveoli of lungs to bl

Describe in detail about the psychological testing, Describe in detail abou...

Describe in detail about the Psychological Testing Psychological testing is the third source of information about the child, and the source most often equated with neuropsychol

Mode of nurition, What mode of nutrition did lizard exihbite

What mode of nutrition did lizard exihbite

State about kidney, Which of the following is true for the kidney? A. A...

Which of the following is true for the kidney? A. Aquaporin1 (AQP1) channels are located in both luminal and basolateral membranes of epithelial cells in the descending limb of

Respiration in scorpion or spider, RESPIR A TIO N IN SCORPION OR SPIDER ...

RESPIR A TIO N IN SCORPION OR SPIDER - Respiratory organs are book lungs. A book lung is a chamber containing a series of thin, vascular, parallel lamellae arranged li

How is the human karyotype usually represented, Can two normal individuals ...

Can two normal individuals of the same species with sexual reproduction have identical genomes and identical karyotypes? How is the human karyotype usually represented? Except

Determine the photographic analysis, Photographic Analysis Documentatio...

Photographic Analysis Documentation is critical in any clinical procedure and more importantly in this field where due to the cost of the treatment involved, there is little ma

Value of biodiversity, Q. Value of biodiversity? Today, there is widesp...

Q. Value of biodiversity? Today, there is widespread concern for conservation of wild animals and plants. One might wonder why there is so much concern about protecting other s

Explain wild-type fruitfly drosophila melanogaster, A cross among wild-type...

A cross among wild-type fruitfly Drosophila melanogaster  [normal bristles and grey body (s+s, e+ e)] with a mutant fly [short bristles and ebony body (ss ee)] produces following p

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