In majority of higher animals and plants,$ . . . . . . $ and $ . . . . . . $ are mutually exclusive events.

The word $Systematics$ is derived from the $Latin$ word $Systema$.

Which of the following statements is incorrect regarding living organisms?

$A$ true species consists of a population that is:

The properties of tissues are not present in the constituent cells but arise as a result of ...........

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.