Is the number of different species represented in an ecological community, landscape or region. is simply a count of species, and it does not take into account the abundances of the species or their relative abundance distributions.

species richness,

Explanation:

species richness is the number of different species represented in an ecological community, landscape or region. _species richness, is simply a count of species, and it does not take into account the abundances of the species or their relative abundance distributions.

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.