What is revisions, Biology

Assignment Help:

Q. What is Revisions?

Revision accounts for only a section of a genus or for the elements as restricted to a continent or smaller geographical area. Some revisions are based solely on herbarium studies and make no attempt to review all previous work on the taxon or to take care of the interrelated sciences of taxonomy, genetics, ecology etc.

It should be noted that there are no modem bibliographies devoted to the subjects of monographs and revisions of the world. The bibliographies by Pritzel, Jackson, Rehder and Merrill and Walker list several thousand monographs and revisions.


Related Discussions:- What is revisions

Describe frequently respiratory infactions heart disease, Describe frequent...

Describe frequently respiratory infactions to recoganize congenital heart disease ? Frequent Respiratory Infections: Respiratory infections that are frequent, severe and diffic

Osmosis: Hypertonic Solution, If a cell were placed in a hypertonic solutio...

If a cell were placed in a hypertonic solution what could it do to protect itself?

Explain properties of colloidal systems - electric charge, Electric Charge ...

Electric Charge - Properties of Colloidal Systems Colloidal particles are electrically charged. Some colloidal particles carry a positive charge (+), others a negative charge (

Potassium (k) - macronutrients, Potassium (K) - Macronutrients The mai...

Potassium (K) - Macronutrients The main source of K + for plants comes from withering of K containing minerals. Potassium released by withering dissolves in the soil solution

Explain mechanism of absorption of haem iron, Explain Mechanism of Absorpti...

Explain Mechanism of Absorption of Haem Iron? Haem iron is soluble in the alkaline environment of the intestine. It binds to the receptor on the enterocytes and is internalized

Etiological factor of lactose intolerance, Q. Etiological factor of lactose...

Q. Etiological factor of lactose intolerance? These diseases are referred to as idiopathic (cause unknown) and though the possible mechanism suggested includes genetic factors,

Introduction to meat products, Meat products Meat is an important commo...

Meat products Meat is an important commodity in the diet of people in view of its complimentary role in balancing the diet with rich source of amino acids, vitamins and mineral

Give three examples of artificial selection, Give three examples of artific...

Give three examples of artificial selection. Include examples of both animals and plants.  Answers will vary, but could include domestic cats, domestic dogs, cattle, sheep, an

Why is maternal milk important for the immune protection, Why is maternal m...

Why is maternal milk important for the immune protection of the baby? Besides being nutritionally significant, maternal milk participates in the defense of the baby against inf

Endocrine glands - prostaglandins, PROS T AGLANDIN S (PGS) - Beca...

PROS T AGLANDIN S (PGS) - Because they were first found in semen (which is produced partly by the prostate gland), they were named prostaglandins. Prostaglandins are d

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