What 4 things do all living organisms need to survive

Air, water, food, energy,

All organisms need an environment that will allow them to reproduce. Now, that can mean lots of things. Humans for instance, need a place where they will find food, water and sun light. They will also need shelter in order to be able to protect their babies. But bacteria for example, they can live literally anywhere. They live in places as acidic as our stomachs, as hot as volcanoes, and as cold as ice in the poles.