The sum total of all chemical reactions occurring in a living body is called?

Assertion: The sum total of all the chemical reaction occurring in our body is metabolism. Reason: All plants animals and fungi exhibit metabolism but microbes do not show metabolism.

A chemical reaction cannot occur at all is

Plant succession occurring in a water body is called .

Plant succession occurring in a water body is called .

A chemical reaction which occurs in the presence of sun light is called-

A chemical reaction cannot occur at all if its