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

Are microorganisms directly or indirectly affects our lives, Describe 5 way...

Describe 5 ways that a microorganisms directly or indirectly affects our lives.

Myocardial hypertrophy and remodeling, The long term adaptive mechanisms in...

The long term adaptive mechanisms involve myocardial hypertrophy and remodeling which occurs slowly over weeks to months. The capacity of these adaptive mechanisms meant to sust

Biota of pelagic zone, Biota of Pelagic Zone Pelagic region constitute...

Biota of Pelagic Zone Pelagic region constitutes 90 per cent of the total ocean surface and is less rich in species and numbers of organisms than the two regions discussed bef

What are other organs and tissues made from that germ layer, From which ger...

From which germ layer do the epidermis and the nervous system originate? What are other organs and tissues made from that germ layer? Epidermis and nervous system have the simi

Fate of pyruvate, Pyruvate Pyruvate has three different  fates. Under a...

Pyruvate Pyruvate has three different  fates. Under aerobic conditions,  pyruvate enters mitochondriaand is converted to acetyl CoA. The acetyl CoA enters thecitric acid cycle.

Access through the crown-endodontics principles and practice, Access throug...

Access through the crown Advantages : -Allow for better isolation with the rubber dam -Better esthetic anf functioning. -Good coronal seal between visits Limitations : -Proc

What is nadp and nadph, What is NADP and NADPH? NADP is the abbreviatio...

What is NADP and NADPH? NADP is the abbreviation of the nicotinamide adenine dinucleotide phosphate cation, a hydrogen acceptor. NADPH is made when NADP binds to one hydrogen a

Deficiency diseases-iodine deficiency, Iodine  deficiency Iodine is an...

Iodine  deficiency Iodine is an important component of thyroid hormones, which play active role in several physiological process such as control of basal metabolic rate, oxidat

Anatomy and physiology, write two part each in the body where cuboidal epit...

write two part each in the body where cuboidal epithelia tissue are found in absorption and excretion

Gene therapy vectors, The ultimate aim of somatic gene therapy is to alter ...

The ultimate aim of somatic gene therapy is to alter the genetic material of living cells which involves transfer of DNA. Genetic material is transferred by various methods like us

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