In $.......$,growth and reproduction are mutually exclusive events.

Which of the following characteristics may not be seen in all living organisms?

$S$ Statement: Reproduction leads to an increase in the number of organisms.
$R$ Reason: In reproduction,organisms produce new individuals similar to themselves upon reaching maturity.
$(a)$ Both $S$ and $R$ are true,and $R$ is the correct explanation of $S$.
$(b)$ Both $S$ and $R$ are true,but $R$ is not the correct explanation of $S$.
$(c)$ $S$ is true and $R$ is false.
$(d)$ $S$ is false and $R$ is true.

Which of the following does not define the functions and characteristics of plants?

Which is the most useful but generally not used criteria for the identification of the species?

There are several ways of looking at living things. One way,which is at the molecular and analytical level with regard to life,could be described as: