Name the life process of an organism that helps in the growth of its population.

Q. Mitosis helps in the development and growth of an organism.

Q. Which of the following indicators helps us to get an insight on the growth in national income with respect to the population growth of a country?

Q. As there is a cellular level of life (like in amoeba),an organ system level of life (like in humans), does an organ level of life exist?
If it does, please mention any organism that has an organ level of life and how they do all the living processes.

Q. (a) List the different attributes that a population has and not an individual organism.
(b) What is population density? Explain any three different ways the population density can be measured, with the help of an example each. [5]