Which of the following represents the correct meaning of Biology?

Living organisms can be distinguished from non-living things on the basis of which ability,excluding exceptions?

Death is defined as...

Which of the following statements are correct regarding the characteristics of living organisms?
$(a)$ Reproduction is a synonymous feature of growth.
$(b)$ Metabolism is a defining feature of all living organisms.
$(c)$ Cellular organization is the defining feature of life forms.
$(d)$ Consciousness is not a defining feature of living organisms.

Which process is considered the result of metabolism?

Biology is the story of life on the earth. Justify the statement.