Provide the definitions/explanations for the following:
$(i)$ Species Diversity
$(ii)$ Endemism

(N/A) $(i)$ Species Diversity: It refers to the variety of species within a particular region or ecosystem. It includes both the number of different species (species richness) and their relative abundance.
$(ii)$ Endemism: It is the ecological state of a species being unique to a defined geographic location,such as an island,nation,country,or other defined zone,and not found naturally anywhere else.