No such thing means no such need.
They all do ... but you may be thinking of plants - they don't need animals to survive but animals need plants.
The "rope" is a coil of old vine on the roof of the , left of the Living Quarters. You need it underground at the Hub.
most animals need food, water, and oxygen
Animals need appropriate nutrients , water , oxygen to breathe and proper living conditions.
They need some quarters.
YES
I believe it is by the large door labeled,"Living Quarters" - you will need a key from the laboratory on the other side of the island
even plants and most of the living organisms need oxygen
Both of them are left of Main Street (Cantina and Museum). But to open the doors, you need the Steam Battery from the trash at the Cantina, and you need a separate Key for each of the doors, and to lower the large bridge at the Hub. Sully's key is inside the Robot Crab at the Living Quarters. But the Living Quarters key is far across the bridge in the Greenhouse (Production zone). Getting to it is more than half the quest. (see the two related questions)
Both of them are left of Main Street (Cantina and Museum). But to open the doors, you need the Steam Battery from the trash at the Cantina, and you need a separate Key for each of the doors, and to lower the large bridge at the Hub. Sully's key is inside the Robot Crab at the Living Quarters. But the Living Quarters key is far across the bridge in the Greenhouse (Production zone). Getting to it is more than half the quest. (see the two related questions)
You need to review the terms of the trust to see how it can be terminated.
an animal living near / in a stream mostly needs food to eat