This relationship is a commensal, and for the tree, it is mutualistic
Explanation:
Commensalism is a relationship between two living organisms or individuals of two species in which one species benefits from the other without harming it. A commensal organism benefits from another organism mostly by obtaining shelter, food, or support from the host, which neither benefits nor is harmed. Mutualism on the other hand is an ecological relationship that benefits the two organisms.
On the relationship between salamander and a small tree; This relationship is a commensal, and for the tree, it is mutualistic.
This relationship is a COMMENSALISM RELATIONSHIP, and for the tree, it is FACULTATIVE.
Explanation:
Commensalism is a type of heterotrophic mode of nutrition is which two organisms of different species live together where one species benefits while the other species is not affected The ecological relationship between the salamander and the tree is a good example where the tree provides shelter for the salamander( especially the terrestrial types) and is unharmed by the organism.
The tree is said to be facultative because it can survive without the presence of the salamander, meaning that their relationship is not an obligate type rather it's by choice.
So first activation energy is lowered by enzymes ! and for this question.... almost All enzymes are made of protein ....so answer is B .... protein !!!
