Age-sex distribution, Biology

Assignment Help:

Age-Sex Distribution

While studying exponential growth we need to know more than just the birth and death rates because these rates vary with age and sex. Age structure in a population is important because individuals vary in their age and many functional aspects are linked with age.

For example, women can bear children i only between ages of 15-44 years, also infants (children under 1 year of age) and older people have higher rates of mortality as compared to individuals of intermediate ages. Accordingly a population can be subdivided into three sub groups.

  1. Pre reproductive (0- 14 years)
  2. Reproductive (15 - 44 years)
  3. Post reproductive (45 years and above)

For a more detailed understanding of the age-structure individuals of a population are divided into age groups with 5 or 10 year interval. Further, males and females can be shown separately in a diagram. Alternately age-sex distributions are also drawn by plotting the percentage of the population of each sex in each group.


Related Discussions:- Age-sex distribution

Write down all the four quantum numbers of the electron, Write down all the...

Write down all the four quantum numbers of the electron in the outermost shell of rubidium (At. no.= 37) atom. a) What type of hybridization is associated with N in NH 3 ? b

Transcription in eukaryotes, The Eukaryotic transcription is more difficult...

The Eukaryotic transcription is more difficult than prokaryotic transcription. For example, in eukaryotes the genetic material DNA and therefore transcription is basically localize

Stress testing after myocardial infraction, Q. Stress Testing after Myocard...

Q. Stress Testing after Myocardial Infraction? Many post infarction deaths are sudden and occur with in the first 6 months after infarction. Exercise testing from 10 days to we

What happens to the tsh blood level in hypothyroidism, What happens to the ...

What happens to the TSH (thyroid-stimulating hormone) blood level in hypothyroidism? Why is there enlargement of the thyroid in the endemic goiter disease? When there is low T3

What is enhancers , While  various  positive  control  components  li...

While  various  positive  control  components  lie  close  to the  gene  they  regulate additional can be situated long distances away (sometimes 10-50 kb) either upstream or downs

What is symbiotic nitrogen fixation, a) What is symbiotic nitrogen fixatio...

a) What is symbiotic nitrogen fixation? b) Name the two protein components required for this process. Define their role.

Explain heterologous and homologous immunoglobulins, Q. What is the differe...

Q. What is the difference between heterologous and homologous immunoglobulins? Homologous immunoglobulin is the human from the same species immunoglobulin and In case of inocul

Define interactions between volatile substances and proteins, Define Intera...

Define Interactions between Volatile Substances and Proteins? Flavour binding may involve adsorption at the surface of food or penetration to the food interiority by diffusion

Can you illustrate trna anticodon, Q. If a tRNA anticodon is CAA what is it...

Q. If a tRNA anticodon is CAA what is its corresponding mRNA codon? For the genetic code which amino acid does this codon codify? According to the C-G, A-U rule, the correspond

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