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

Amino acid, Amino acid is any of a class of 20 molecules which are combine...

Amino acid is any of a class of 20 molecules which are combined to form the proteins in living things. Consisting of the general formula NH2-CHR-COOH, where "R" is the side chain

What is meant by unsaturation or saturation of oils and fats, Q. What is me...

Q. What is meant by unsaturation or saturation of oils and fats? When it is said that a triglyceride is saturated it means that in its molecule the carbon chain is bound in its

Some species of plant are strongly adapted to pollination, Some species of ...

Some species of plant are strongly adapted to pollination by certain insects.   Characteristics which are regarded as adaptations to pollination by bees are: ( a) white o

What is the improper implant type in improper bone type, Improper Implant t...

Improper Implant type in Improper Bone Type In routine sites with good quality bone, the clinician should prefer implants without any superadded HA coatings and avoiding their

Zoonoses disease-poxvirus zoonoses, Poxvirus zoonoses Naturally occurring ...

Poxvirus zoonoses Naturally occurring poxvirus infections affect humans and many species of animals and insects. However, for most part, poxviruses other than variola cause self-l

Explain sexually-transmitted diseases, Sexually-transmitted diseases M...

Sexually-transmitted diseases Many travelers have new sexual contacts during their journeys and are at increased risk for acquiring sexually transmitted diseases including HIV

How the slides and specimens used as instructional resources, Explain how t...

Explain how the slides and specimens used as instructional resources?  Ans) They act as an Identifier, so that we can judge them simply

Explain the severe burns - clinical therapeutic nutrition, Explain the Seve...

Explain the Severe Burns - Clinical Therapeutic Nutrition? Severe, life-threatening bums require immediate care. Dehydration is treated with large amounts of fluids given intra

Deficiency diseases-copper deficiency, Deficiency of vitamin -A (hypovitami...

Deficiency of vitamin -A (hypovitaminosis-A) Vitamin A deficiency develops due to insufficient supply of the vitamin or its defective absorption from alimentary tract. The defi

Significance of apomixis, Significance of Apomixis Apomixis offers th...

Significance of Apomixis Apomixis offers the possibility of indefinite multiplication of especially favorable biotypes without any variation due to segregation or recombinati

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