Demography, Biology

Assignment Help:

DEMOGRAPHY -

Scientific study of vital & social statistics such as births, deaths, disease etc. of human population is called demography.

It deals with -

1.      Changes in population.

2.      Composition of population - age graph sex ratio.

3.      Distribution of population in space.

The main sources of demographic statistics are censuses.


Related Discussions:- Demography

Where in leaves the photosynthetic tissue often located, Where in the leave...

Where in the leaves is the photosynthetic tissue often located? The major photosynthetic tissue is the photosynthetic parenchyma (also called as chlorenchyma, do not confuse wi

What is bicuspid aortic, What is bicuspid aortic? Bicuspid aortic val...

What is bicuspid aortic? Bicuspid aortic valve is the most common form of CHD seen in adults. Isolated bicuspid aortic valves may be stenotic or non-stenotic to start with. T

Phases of the cardiac cycle, The phases of the cardiac cycle are: 1)  At...

The phases of the cardiac cycle are: 1)  Atrial Systole This begins with the P-wave of the ECG. The atrio-ventricular valves are open and the ventricles are relaxed (diastole

Describe tranposition of great arteries intact ventricular, Describe tranpo...

Describe tranposition of great arteries with intact ventricular septum? Transposition of great arteries with intact ventricular septum (or small VSD): There is usually inadequa

Polychaete, Polychaete, Mollusca and Echinodermata Polychaete and Mol...

Polychaete, Mollusca and Echinodermata Polychaete and Mollusca The polychaetes have a trochophore larva. A common trochophore larva is top shaped bearing a tuft of cilia

Molecular hydrogen, Molecular Hydrogen N 2 -fixing organisms also prod...

Molecular Hydrogen N 2 -fixing organisms also produce a membrane bound enzyme called uptake-hydrogenase under N 2 -fixing condition. The physiological significance of the pres

Comparison between metamorphosis in amphibians and insects, Comparison betw...

Comparison between Metamorphosis in Amphibians and Insects You may have realized that the metamorphic process in amphibians and insects show certain fundamental similarity. M

Excretion in animal, Excretio n I n  Animal To give out nitrogenous...

Excretio n I n  Animal To give out nitrogenous waste products after oxidation of food is excretion. EXCRE T O R Y MATERIALS - 1 .      AMMONIA - Animals are

Annexin v is a protein that binds to phosphatidylserine, Annexin V is a pro...

Annexin V is a protein that binds to Phosphatidylserine. Why is this useful in the lab? Does it have to do with testing whether the cell is in normal condition?

How does sexual reproduction take place in bacteria, Q. How does sexual rep...

Q. How does sexual reproduction take place in bacteria? How dissimilar are the modalities of bacterial sexual reproduction? Sexual reproduction occurs when bacteria incorporate

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