|Aloe vera and many other aloes are used for medicinal
purposes and there for their leaves that contain the "healing" gel are
harvested, which is a great cost to the plant. It needs those
leaves that contain the chloroplasts to survive.
The Aloe vera gel
interacts with our body and especially with our immune system when it is
Sunbirds and other
pollinators also interact with Aloe vera. If A. vera did not have
pollinators it would be quite difficult for it to grow and thrive.
Often a younger Aloe vera plant will start to grow near something to
shade it, a rock or other plants. If it grows near a plant then it
would be in competition with the other plant for water and once the Aloe
gets older, sunlight.