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

Why should an athletes take proteins, Why should an athletes take Proteins?...

Why should an athletes take Proteins? Proteins are basically taken for their ergogenic properties of enhancing endurance and increasing or maintaining muscle mass to improve st

Define changes in body composition due to microgravity, Define Changes in B...

Define Changes in Body Composition due to Microgravity? Major stress in space is microgravity. Microgravity refers to an environment in which there is very little net gravitat

Main constituents of the earth''s atmosphere in our time, What are the main...

What are the main constituents of the earth's atmosphere in our time? The present atmosphere of the earth is constituted essentially of molecular nitrogen (N2) and molecular ox

Protozoa., show me the schamatic diagram of chrysomoeba?

show me the schamatic diagram of chrysomoeba?

Describe the basic mechanisms in plaque formation, Q. Describe the Basic Me...

Q. Describe the Basic Mechanisms in Plaque Formation? In experimental models and human disease, the first morphologic phenomenon observed in plaque formation is adhesion of mon

Embryonic development, Embryonic Development The embryonic stage exte...

Embryonic Development The embryonic stage extends from the second week by the 8th week and is charactrised by formation of placenta, the development of internal organs and ap

Advantages and disadvantages of mechanical valves, Advantages Durab...

Advantages Durability of these vales are long lasting.  Disadvantages Need for anticoagulant therapy is life long.  Risk of thrombo-embolism is hi

Enhancer, The enhancer is the cis-acting nucleotide series to which the tra...

The enhancer is the cis-acting nucleotide series to which the transcription factor(s) bind, and which increases transcription of the gene. It is not part of the promoter; the gener

What is passive transport , The passive transport of molecules across a me...

The passive transport of molecules across a membrane does not require an input of metabolic energy. Rate of the diffusion or transport is proportional to the concentration gradient

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