Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Age Distribution - Population Parameters and Regulation
It is obvious that individuals in a population will be of different age groups. Relative numbers of young and old individuals in a population will significantly influence the behaviour of a population such as natality and mortality. The age structure of any population can be classified into three categories, i.e. pre-reproductive, reproductive and post-reproductive ages. Mortality usually varies with age as chances of death are more in early pre- reproductive and late post-reproductive periods. Likewise, natality is restricted to the reproductive age of individuals in a population.
The relative duration of these ages in proportion to life span is different in different organisms. For example, in modern man the three 'ages' are relatively equal in length, about one third of the life span. In comparison, the primitive man had much shorter post reproductive period. Many animals and plants have quite long pre-reproductive period. For example, a locust in its seventeen years of life has an extremely long development history with adult life lasting only less than a year.
what is he importance of proteins for living beings
Select the two correct statements out of the four (a - d) given below about lac operon. 1. Glucose or galactose may bind with the repressor and inactivate it 2. In the absenc
Describe the Classification of Arthropoda? Most arthropods also go through a growth process called metamorphosis, whereby they change their bodies into an entirely different fo
To increase the strength of the muscle work is the muscle contraction intensely increased? An increase in the strength of the muscle work is not achieved by enhance in the inte
Congenital Anomalies of Small and Large Intestines: 1) Intussusecption Intussusecption is the invagination or telescoping of one part of the intestine into another part
Explain about Skeletal muscle These are attached to the bones by tendons, which help in the movement of the part of the skeleton. These muscles are controlled by our conscious
Horse-pox Horse pox is a benign disease characterized by the typical pox lesions on the lower limbs or around the muzzle and buccal mucosa. This is a rare disease, caused by a
What do you mean by blinking and peering in the eyelid? Blinking and Peering: Blinking considers as to the opening and closing movements of the eyelid. The function of b
High blood pressure (hypertension) has gained considerable significance because it will eventually damage end organs like the heart, brain, kidneys and the eyes. It is estimated th
floral formula of family rosaece
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd