Why biologists use comparative method, Biology

Assignment Help:

Why Biologists use Comparative Method?

Biologists are frequently interested in determining whether traits are functionally correlated. For example, do plants that are pollinated by birds tend to have red flowers much more often than those plants which are pollinated by other agents? Showing that a statistically major correlation between traits exists is sufficient to depict that the traits are usually related. A correlation among traits may have arisen not as they are functionally related but because they are historically (phylogenetically) related. Throughout the last two decades, comparative biologists have developed increasingly sophisticated methodologies termed collectively as the comparative method to take history into account. In a current survey, Freckleton et al. note that "Eighty-eight percent of data sets contained at least one character that displayed significant phylogenetic dependence and 60% of characters complete (pooled across studies) showed important proof of phylogenetic association". Phylogenetic history, and therefore, the comparative method, matters.


Related Discussions:- Why biologists use comparative method

#Erosion, In what ways does over-grazing lead to soil erosion?

In what ways does over-grazing lead to soil erosion?

Microfilament, Full Description about microfilament

Full Description about microfilament

What is Ailing Implant, What is Ailing Implant Ailing Implant : An impl...

What is Ailing Implant Ailing Implant : An implant which may indicate an increased risk for failure, which can be of temporary significance or amenable to treatment and is gene

Explain left ventricle enlargement, Q. Explain Left Ventricle Enlargement? ...

Q. Explain Left Ventricle Enlargement? The left ventricle (LV) is ellipsoid in shape. It lies behind, and to the left of the right ventricle. Its long axis lies at about 45 deg

Mention causes of implant failure due to restorative problem, Mention cause...

Mention causes of implant failure due to restorative problems. 1) Restorative problems: a) Excessive cantilever. b) Use of implants with rigid prosthetic connection with

Conduction, Conduction An action potential occurs at one point along t...

Conduction An action potential occurs at one point along the axon. Yet we know that neurological impulses are not fixed, they travel along a neuron. So how can the action pote

What is the nitrogen waste in amphibian larvae, Q. What is the nitrogen was...

Q. What is the nitrogen waste in amphibian larvae and in the adult animal? The terrestrial adult excretes urea since amphibian larvae are aquatic they excrete ammonia.

What is the original concentration, A sample of yeast cells was serially di...

A sample of yeast cells was serially diluted 1/10 five times then serially diluted 1/3. the number of yeasts was338 yeasts per ml. what was the original concentration? Please show

Explain some side effects of carbohydrate loading, Explain some side effect...

Explain some side effects of carbohydrate loading? Some potential side effects of carbohydrate loading are: Muscle , stiffness Diarrhoea Chest Pain Depres

What are the terms used in sterilization, Q. What are the terms used in ste...

Q. What are the terms used in sterilization? Sterilization: It is defined as freeing the object or substance from all life of any kind. It is defined alternatively as the

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