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

Cell cycle, Provide a link to the graph, describe the variables, and interp...

Provide a link to the graph, describe the variables, and interpret the meaning of the graph

Receptors, Receptors are sense organs that receive stimuli. On the basis...

Receptors are sense organs that receive stimuli. On the basis of their location in body receptors are of following types - 1 .       Extero receptor - Located at or near t

Coelenterata, mode of digestion in coelenterata

mode of digestion in coelenterata

Agro industrial-glycosides, Glycosides Calcinogenic glycosides: C...

Glycosides Calcinogenic glycosides: Certain plants contain glycosides of the active metabolite of vitamin D. The metabolite is called 1, 25-dihydroxycholecalciferol or mo

Briefly explain endocrine system, Q What is the constitution of the endocri...

Q What is the constitution of the endocrine system? The endocrine system is constituted by the hormones and the endocrine glands they secrete. Q. What is the histological n

Explain neurologic disease, Explain Neurologic disease For patients wit...

Explain Neurologic disease For patients with facial nerve palsy alone, oral doxycycline or amoxicillin may be effective. Patients with other neurologic involvement, such as men

Digestion of carbohydrates, Digestion of carbohydrates Carbohydrate di...

Digestion of carbohydrates Carbohydrate digestion in vertebrates and invertebrates is very similar. All the enzymes shown in Table are not required by all animals. The enzymes

Environment and health- impact of air and water pollution, Environment and ...

Environment and Health- Impact of Air and Water Pollution Environment includes a host of factors of which air and water are the two major components. Air pollution is caused b

., what is the skeleton in the different classes of coelentrata known

what is the skeleton in the different classes of coelentrata known

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