Implication of five kingdom classification, Biology

Assignment Help:

Implication of Five Kingdom Classification

The implication of classification is thus to reflect a degree of kinship. On this basis one should be able to trace the evolutionary history of any group. In order to do this it would be worthwhile to keep in mind two basic postulates: one, all species in any one group, if correctly placed, should have a common ancestor; and two, no living organism is the ancestor of any other living organism. The common ancestor may not be found today in the living state and might have become extinct, leaving behind its fossilized remains.

1558_Implication of Five Kingdom Classification.png

Figure: Homologus forelimbs of several representative vertebrates are compared with those of the suggested primitive ancestral type. In each instance, the individual hones have undergone modification, though they can still be traced to the ancestor. Since these limbs have the same embryological origin, they are said to be homologous. The most drastic changes can be observed in bird, horse, whale. Several individual bones have undergone reduction and in some cases fusion. Another obvious modification is seen in the greatly elongated finger bones of the bat.


Related Discussions:- Implication of five kingdom classification

A brief history of heart surgery, A brief history of heart surgery : The d...

A brief history of heart surgery : The dawn of Paediatric cardiac surgery was on August 26, 1938 when Robert, Gross, at the boston Children's Hospital, ligated ductus arteriosus

Anaphase of karyokinesis, There is no splitting of the centromere. The ...

There is no splitting of the centromere. The kinetochore fibers contract and the spindle or pole fibers elongate , As a result homologous chromosomes of each pair rather than

Phototheraphy and exchange transfusion, PHOTOTHERAPHY AND EXCHANGE TRANSFUS...

PHOTOTHERAPHY AND EXCHANGE TRANSFUSION: This section will enable you to acquire skills related to phototherapy and exchange transfusion. You will also review the indication

Intraspecific and interspecific competition, In the preceding block you lea...

In the preceding block you learnt the Darwinian premise of natural selection based on certain facts and deductions thereof. You would have noticed that one of the foundations for t

Define the meaning of population structure, Define the meaning of Populatio...

Define the meaning of Population Structure? The structure of population can be viewed as to how the population is composed of in terms of age and sex. The structure of populati

How to investigate mitral regurgitation by echo, Q. How to investigate mitr...

Q. How to investigate mitral regurgitation by Echo? 2 D echocardiography will help determine the morphology and etiology of mitral regurgitation. Rheumatic mitral regurgitation

Locomotion, Locomotory apparatus in protozoa

Locomotory apparatus in protozoa

Expressed sequence tag (est), Expressed sequence tag (EST) is the short pa...

Expressed sequence tag (EST) is the short part of DNA sequence of corresponding to the fragment of the complementary DNA (made from the cell's messenger RNA). ESTs have been taken

Regulation of heart, Regulation of Heart The number of electrical imp...

Regulation of Heart The number of electrical impulses initiated by the SA node is primarily the result of its innervation by fibers from both sympathetic and parasympath

What is diatoms, What is Diatoms? Bacillariophyta are commonly known as ...

What is Diatoms? Bacillariophyta are commonly known as diatoms because of their unique structure. These unicellular photosynthetic organisms are composed of two overlapping glas

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