I would choose the mountain ecosystem.
The mountain ecosystem contains a complex living organisms.
Mountain lands support a diverse array of habitats with large range of plants
and animals. It is very crucial for biological diversity and is very wonderful
to see. The climate is mostly cool which is fitting for relaxation.
3) Heredity because Heredity is defined as the characteristics we get genetically from our parents and our relatives before them.
Commensalism is defined as a relationship between two species where one has certain benefits from the relation and the other is unaffected. So, in this case, it is hard to determine what kind of relationship the gray wolf and human populations have because when people intervene to help protect a species they are officially unaffected, they do not lose or gain anything, but the gray wolf is one of the key species in their ecosystem, so protecting them is beneficial for the ecosystem, therefore can have numerous positive effects on human-environment too.
