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

What is the basic structure of a virus, What is the basic structure of a vi...

What is the basic structure of a virus? Viruses are constituted of genetic material (DNA or RNA) covered by a protein capsule also called as a capsid. Some viruses, like HIV, h

Test for starch, have any picture this expiriment at record?

have any picture this expiriment at record?

What is erythroblastosis fetalis, It is a hemolytic disease, which makes in...

It is a hemolytic disease, which makes in newborn. Maternal IgG antibodies cross the placenta and destroy the red bleed cells. This develops when an Rh+ expresses an Rh antigen on

What is the formula of the net primary production, What is the formula of t...

What is the formula of the net primary production (NPP)? How does NPP relate to the energy pyramids? Net primary production is the gross main productivity less the organic mate

Define vitamin requirements for preterm and low birth weight, Define Vitami...

Define Vitamin and Mineral requirements for preterm and low birth weight? Care to be taken for calcium and phosphorus intake in preterm infant. Due to inefficient sodium conser

Define the food system in space, Define the Food System in space? Mercu...

Define the Food System in space? Mercury (1961-1963) astronauts had to eat bite-sized cubes, freeze dried powders, and semi liquids stuffed in aluminium tubes. For most asbonau

Which part of the teeth is it important to remove plaque, From which part o...

From which part of the teeth is it particularly important to remove plaque. It is most significant to remove plaque from among the teeth and from the region where the gum cover

Erythrocytes or red blood cells, Erythrocytes or red blood cells: Th...

Erythrocytes or red blood cells: These are otherwise called Red Blood cells or corpuscles. These are the most numerous cells in the blood.There are about 4.5 to 5.5x 10 9

Differences between ecosystems, Some ecosystems possess relatively large nu...

Some ecosystems possess relatively large number of species as compared to others. This is particularly true of tropical forests which exhibit a very rich-biodiversity. For example,

Predominant feature of steatorrhoea, Q. Predominant feature of steatorrhoea...

Q. Predominant feature of steatorrhoea? A predominant feature is delayed and defective absorption of fat, which results in bulky stools containing large quantities of fat (know

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