What are the obligate categories? How these are different from intermediate categories. List out some intermediate categories.

3

(a)

Amoeba is a living matter and a sand particle is non-living matter.Explain.

3

(a)

Why reproduction is necessary? is it essential for survival? If a living organism does not reproduce, in which category it will belong, living or non-living? How is sexual reproduction different from asexual reproduction?

3

(a)

Do you consider a person in coma, living or dead?

3

(a)

In which conditions human beings are difficult to define as living?

3

(a)