Define biogeographic realm, Biology

Assignment Help:

Q. Define biogeographic realm?

Biogeographic regions are large areas that contain characteristic assemblages of animals and plants, d elineated on account of natural barriers such as oceans, mountains and deserts. A biogeographic region is generally characterised by high levels of species endemism.

Boundaries between biogeographic regions are called "biogeographic lines".

Examples are:

· Wallace's line between Southeast Asia and Australia (between Sundaland and Wallaceae), and
· Kangar-Pattini line between India and Myanmar.

The marine environment is three-dimensional with a distinct vertical zonation, each having its distinct associated species. Accordingly in a particular oceanic region, intertidal areas, the upper layers of the open ocean and the deep sea have very different assemblage by species.


Related Discussions:- Define biogeographic realm

Fats, definition and explanation of fats

definition and explanation of fats

Photosynthesis Lab, How does light intensity affect oxygen production?

How does light intensity affect oxygen production?

Define the integrity of gut or colon - dietary fiber, Define the Integrity ...

Define the Integrity of gut or colon? Dietary fibre especially fermentable fibres play an important role in maintaining the integrity of gut. SCFAs generated during fermentatio

Polychaetes - feeding and digestion in annelids, Polychaetes - Feeding and ...

Polychaetes - Feeding and Digestion in Annelids Polychaetes involve both free moving (errant) and sedentary species. The free moving species are usually macrophagous and the s

Alimentory canal, how to do assignment on alimentory canal

how to do assignment on alimentory canal

What is leghemoglobin, The  nitrogenase  complex  is  extremely  sensitive ...

The  nitrogenase  complex  is  extremely  sensitive  to  inactivation  by  O2,  so  the enzyme  must be protected  from this reactive  substance.  During the root nodules of legumi

Digestive system of an arthropod, how does the digestive system of an arthr...

how does the digestive system of an arthropod operate

What are the four types of weak bonds, What are the four types of weak bond...

What are the four types of weak bonds, and how do they differ from each other and from covalent bonds? When you eat a salad with lettuce, croutons, hard-boiled egg, bacon bits,

Structure of chromosome, STRUCTURE Each chromosome composed of two i...

STRUCTURE Each chromosome composed of two interwoven (coiled) threads called Chromonema (Chromonemata) embeded in a matrix of semisolid protein. Surface of matrix is in

Explain lauric fats - edible fats, Lauric Fats  Fats of this group are ...

Lauric Fats  Fats of this group are derived from certain species of palm, such as coconut. The fats are characterized by their high content of lauric acid (40 - 50%), moderate

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