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

Blood vessels - circulation, Normal 0 false false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Define procedure for gram staining of bacterial cultures, Define Procedure ...

Define Procedure for Gram Staining of Bacterial Cultures? Now carry out the exercise following the steps enumerated herewith: 1. Label the nutrient agar plates with the name

Indicate the probability of producing, I have no idea how to do this: two g...

I have no idea how to do this: two gene loci, A and B, assort independently, and alleles A and B are dominant over alleles a and b. Indicate the probability of producing: an AB phe

Structure of proteins, STRUCTUR E OF PROTEINS Proteins which are mixed...

STRUCTUR E OF PROTEINS Proteins which are mixed polymers of amino acids can have up to four structural levels - Primary, Secondary, Tertiary, Quaternary 1 .       PRIMA

What do you mean by zoonoses, Q. What are zoonoses? What are few examples o...

Q. What are zoonoses? What are few examples of zoonoses transmitted by birds? Zoonoses are human diseases transmitted by animals. Psittacosis, a bacterial disease, cryptococcos

How hiv infection is mainly spread, It is mostly spread by sexual contact, ...

It is mostly spread by sexual contact, blood transfers and from HIV infected mother to child.

Ornithine-urea cycle, Normal 0 false false false EN-IN ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

#tit, what three connective tissues are liquid

what three connective tissues are liquid

What is megalobastic anemia, Question 1) What is megalobastic anemia? Disc...

Question 1) What is megalobastic anemia? Discuss briefly its lab diagnosis. How would you differentiate megaloblastic anemia from other anemias? Question 2) What is hem

Kindom amimalia, charachteristicsof phylum canidaria

charachteristicsof phylum canidaria

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