Question

what is the set of skills and abilities necessary for an organism to live.

Answer 1

Hi there!

The set of skills and abilities necessary for an organism to live is their natural instinct. 
An animal's natural instinct is things they know at birth, such as breathing and walking. 

Hope this helps!

Answer 2

The abilities and skills which are necessary for an organism to live is referred to as survival.

Survival can be termed as act of surviving or a way of living.