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

How does the contraceptive diaphragm work, Q. How does the contraceptive di...

Q. How does the contraceptive diaphragm work? What are the limitations of this contraceptive method? The contraceptive diaphragm is an artifact made of plastic or latex that wh

What are the symptoms of mitral stenosis, Q. What are the Symptoms of Mitra...

Q. What are the Symptoms of Mitral stenosis? The cardinal symptom of mitral stenosis is dyspnoea on exertion. Typically it progresses over a period of years. As the severity in

Explain rodent control and pests, Q. Explain Rodent Control and pests? ...

Q. Explain Rodent Control and pests? In any food establishment, varieties of insects, pests and rodents pose a big threat to the maintenance of hygienic surroundings. They

What do adp and atp mean, Q. What do ADP and ATP mean? What are the functio...

Q. What do ADP and ATP mean? What are the functions of these molecules for the cellular energetic metabolism? ADP is an short form of adenosine diphosphate, two molecules of ph

Illustrate the conductance of potassium channels, A decrease in parasympath...

A decrease in parasympathetic discharge to the heart leads to A. an increase in the conductance of F-channels in SA node cells. B. a decrease in the conductance of potassium

Define type of instruments used in spectral techniques, Define Type of Inst...

Define Type of Instruments used in Spectral Techniques? A wide range of instruments are available, possessing a combination of features but there is no rigid classification of

Triploblastic, What Is the advantage of having a coelomic body cavity

What Is the advantage of having a coelomic body cavity

The concentration of the tissue fluid, The concentration of the tissue flui...

The concentration of the tissue fluid, which bathes all cells in the body, is kept more or less constant. Why is this important? If the tissue fluid became more dilute, the ce

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