What is the concentration of a suspension that grew 89 colonies on a plate with a dilution of 1: 100?

8900 CFU/mL

Explanation:

Colony Forming Units (CFU) is a value that indicates the degree of microbiological contamination of an environment. It expresses the relative number of microorganisms of a given taxon in a volume of one cubic meter of water.

UFC is the minimum number of separable cells on the surface, or inside, of a semi-solid agar medium that results in the development of a visible colony of the order of tens of millions of descending cells. The CFUs can be pairs, chains or clusters, as well as individual cells. Colony forming unit.

Calculation

Colonies * Dilution = CFU/mL

89          *  (100/ 1 mL) = CFU/mL

8900 CFU/mL

The concept of Niche differentiation or niche partitioning best describes the splitting of this similar niche so that all species may coexist with these limited resources.

Explanation:

The concept of niche differentiation describes that if there is a competition for a resource which is limited in the ecosystem,then the species thriving there can occupy different place,choose to eat different foods etc. i.e. differentiating their niche.In this way the competition among them decreases and they can coexist peacefully with limited resources.