Question

Give a broad outline of various types of positive interactions among organisms.

Answer 1

Positive interactions among organisms involve relationships where one or both species benefit. These include:

1. Commensalism: One species benefits while the other is neither helped nor harmed. For example, epiphytes growing on trees.
2. Proto-cooperation: Both species benefit, but the association is not essential for survival. For example, hermit crabs and sea anemones.
3. Mutualism (Symbiosis): Both species benefit, and the association is more or less obligatory for survival. For example, lichens and mycorrhizae.

These interactions enhance the survival, growth, and reproduction of the species involved, fostering ecosystem stability.