Explain evolutionary classification, Biology

Assignment Help:

Evolutionary Classification

Evolutionary classification combines aspects of both phenetic and cladistic systematic. Evolutionary taxonomists attempt to show in their classification both the evolutionary relationships and the degrees of similarity among organisms. It is impossible, however, to represent both similarities and genealogies accurately in a single classification system because rates of evolution among groups of organisms and among different traits within groups of organisms are often highly variable. Therefore, evolutionary taxonomists must compromise between their 'two goals. This need not be confusing as long as the nature of the compromise is clearly indicated so that users of the system know how the taxonomic categories were constructed. With a simple and hypothetical example we can illustrate how different approaches lead to different classification of organisms even when they use the same data. Six characters have been measured, and each one can have either the ancestral state (0) or a derived one (1). In this example, evolutionary reversal of character states are: not found but in real life some reversals may occur. Given these character states, we can compare the four species phenetically and cladistically. The phenetic similarity  calculation is based on the number of shared characteristics that are in the derived

 


Related Discussions:- Explain evolutionary classification

Explain the predator-prey relationships, Explain the Predator-Prey Relation...

Explain the Predator-Prey Relationships ? The feeding by a population of one species upon members of another species is referred to as predation. Many scientists also consider

Mold, Does mold have roots? When mold is inside on wood - are there roots t...

Does mold have roots? When mold is inside on wood - are there roots that go into substrate? I am trying to find this out today if possible to evaluate a remediator''s plan. I am wo

Assessment of development in children, Assessment of Development in Childre...

Assessment of Development in Children The development of a child is studied through various responses which he exhibits following a natural or experimental stimulus. Basical

Why we use histamine in consciousness, Q. Why we use Histamine in conscious...

Q. Why we use Histamine in consciousness? Histamine is involved in controlling the level of consciousness during waking. The level of histamine diminishes during sleep and its

Destarch the leaves of a potted plant, a) How would you destarch the leaves...

a) How would you destarch the leaves of a potted plant? b) How would you check that the destarching had been effective?   a) If a potted plant is kept in darkness for

Explain the role of dietitian''s in feeding dilemmas, Explain the role of d...

Explain the role of dietitian's in feeding dilemmas Usually, the dietitian's role in  feeding dilemmas is seen as secondary and the physician's role  is the  focus. In reality,

How bone density affect osseointegration, How Bone density affect Osseointe...

How Bone density affect Osseointegration The most important bone property is density which is influenced by factors such as patient age and genetics. Higher density bones have

Phylum , General characteristics of phylum

General characteristics of phylum

Describe the applications of vitamin B1, Describe the Applications of vitam...

Describe the Applications of vitamin b1 The steadily increasing consumption of white flours  (insufficiently ground and thus low in vitamin content) by large sections of the po

Electron transport and oxidative phosphorylation, Many of the free energy f...

Many of the free energy free during the oxidation of glucose to CO 2 is retained in the decreasing coenzymes NADH and FADH 2 producing while glycolysis and the citric acid cycle.

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