Demographic cycle, Biology

Assignment Help:

DEMOGRAPHIC CYCLE -

1.       First stage -

Bhigh   - Dhigh   =  0

2.       Second stage -

Bhigh   - Dlow   =  Gmore

eg. Many countries of South Asia, Africa, Kanya & Bangladesh.

3.       Third stage -

Bhigh   -  Dlow   =  G

eg. India, China, Singapore

4.       Fourth stage -

Blow   - Dlow   =  0

eg. Austria, U.K., Denmark, Swedeen.


Related Discussions:- Demographic cycle

Define the improper prosthetic designing, Improper Prosthetic Designing ...

Improper Prosthetic Designing is also a cause of failure and it reiterates the importance of planning the case with the end in mind. The choice between fixed or removable prost

What is binary fission in cell reproduction, What is Binary Fission in cell...

What is Binary Fission in cell reproduction? Cell division takes place in prokaryotic cells by binary fission, also called prokaryotic fission. In prokaryotes, DNA is contained

Zoonoses disease-plague, Plague Plague is an acute and highly fatal di...

Plague Plague is an acute and highly fatal disease caused by Yersinia pestis and transmitted by the bite of infected rat fleas. It is primarily a disease of rodents and small

What is dna libraries , A DNA library is a collection of cloned DNA fra...

A DNA library is a collection of cloned DNA fragments in a cloning vector which can be fined for a DNA of interest.  If the target is to isolate particular gene sequences.

Preliminary screening stage of battery, Preliminary screening stage of batt...

Preliminary screening stage of battery During the preliminary screening stage in the development of the battery, items in the original pool that did not attain satisfactory int

Bacterial food infections, Food infection occurs when a pathogen enters the...

Food infection occurs when a pathogen enters the gastrointestinal tract and multiplies. Microorganisms can penetrate into the intestinal mucosa and grow there, or they can pass thr

Explain the use of benzoates acid, Q. Explain the use of Benzoates acid? ...

Q. Explain the use of Benzoates acid? Benzoic acid, sodium benzoate and the parahydroxy esters (parabens) are used as preservatives. Benzoic acid and its sodium salt, sodium be

Consequences of shifting the chemical equilibrium, Q. What are the conseque...

Q. What are the consequences of shifting the chemical equilibrium of the formation of bicarbonate from carbon dioxide and water towards the increase of product (bicarbonate) format

Reproductive system of asteroidea, Reproductive System of Asteroidea S...

Reproductive System of Asteroidea Sexes are separate in several asteroids. There are ten (10) gonads, two in each arm. They emerge tuft-like or as cluster of grapes. Mature go

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