$X$ - Mountains,boulders and sand mounds do grow even they are non-living.
$Y$ - Growth is a character of only non-living.

Which process is considered the result of metabolism?

Which of the following features is not necessarily present in all living organisms?

The maintenance of a constant internal environment despite changes in the external environment is known 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.

Assertion: The number of cells in a multicellular organism is inversely proportional to the size of the body.
Reason: All cells of the biological world are alive.