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

Cells, Suppose you were planning to use liposomes in an attempt to deliver ...

Suppose you were planning to use liposomes in an attempt to deliver drugs to a particular type of cell in the body, for example, a fat or muscle cell. Is there any way you might be

Technological level - pollution control, Technological level - Pollution co...

Technological level - Pollution control Air pollution can be reduced by using bag filters, electrostatic precipitators and cyclone separators that separate large and small par

Factors influencing rs content -amylose or amylopectiz ratio, Explain the F...

Explain the Factors Influencing RS Content -Amylose or Amylopectiz ratio? Amylose/Amylopectirz ratio: In general, foods containing high amylose/amylopectin ratio lead to higher

Spermatocytogenesis, SPERM A T OCY T OGENESIS In this process four...

SPERM A T OCY T OGENESIS In this process four spermatid develop from one PGC. (i) Multiplication phase The spermotogonia or sperm mother cells lie next to the b

Digestive system, Digestive system is one of eleven major body organ syste...

Digestive system is one of eleven major body organ systems in animals; it converts food from the external environment into the nutrient molecules which can be used and stored by t

Diplotene and diakinesis, Diplotene: The paired chromosomes repel eac...

Diplotene: The paired chromosomes repel each other and begin to separate. Separation however, is not completed, because homologous chromosomes remain united by their point

Objectives of surgery, OBJECTIVES :  After reading surgery, you will be ab...

OBJECTIVES :  After reading surgery, you will be able to: 1 understand the fundamental of closed and open heart surgery and recent developments in off pump surgery; 2 in

Give an introduction to intensive care, Give an introduction to intensive c...

Give an introduction to intensive care ? Intensive Care Medicine has its origins from the polio epidemic of 1952 in Copenhagen. Patients who suffered respiratory paralysis were

Explain in details class hirudenia - leeches, Explain in details Class Hiru...

Explain in details Class Hirudenia - Leeches? This group includes the leeches. Most leeches grow in tropical freshwater habitats, and are familiar to most people as bloodsucker

Porifera - regeneration in invertebrates, Porifera - Regeneration in Invert...

Porifera - Regeneration in Invertebrates Sponges have immense regenerating ability and show two ways of doing so as displayed below. : (a) Regeneration from small segments-

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