The physiological capacity of a population to produce offsprings is known as
Environmental resistance
Carrying capacity
Biotic potential
None
$A$ : Every sixth person in the world is an Indian.
$R $: Life expectancy depends upon average life span
The bio-index number means
Worlds $AlDS$ day and world earth day are celebrated on. and.. respectively
Which of the following statements about hepatitis$-B$ is incorrect?
Lactational amenorrhoea, is a natural way of birth spacing. It is due to the high level of