water, food, and nutrients i think...
energy though is important because your heart cant pump blood without it
I think you also need shelter, but defiantly water food and nutrients... ;-)
Mutualism occurs when organisms need protection (e.g., "guest defenders" or "guest cleaners"), when immobile organisms need to reproduce (e.g., pollinators or seed dispersers), and when organisms need to expand tolerances.
All organisms need oxygen to live.
Not every organism need organs.Unicellular organisms do not have any way.
so it does not get extinct
why do we need to know what organisms live long time ago
Why do plants and other photosynthetic organisms need CO2 from the atmosphere?
The organisms need plants, algae and bacteria for their nourishment. This ensures their survival.
do all living organisms need your body system to survive
you need to smell
yes
rtytrggu
Autotrophs