Question

How many no. of electrons make 1 cgs unit of mass

Answer 1

3×10^23 for 1 gram ..

Answer 2

In ecology, a niche (CanE, UK: /ˈniːʃ/ orUS: /ˈnɪtʃ/)[1] is the fit of a species living under specific environmental conditions.[2][3] The ecological niche describes how an organism or population responds to the distribution ofresources and competitors (for example, by growing when resources are abundant, and when predators, parasites and pathogens are scarce) and how it in turn alters those same factors (for example, limiting access to resources by other organisms, acting as a food source for predators and a consumer of prey). "The type and number of variables comprising the dimensions of an environmental niche vary from one species to another [and] the relative importance of particular environmental variables for a species may vary according to the geographic and biotic contexts".[4]
hope it helps !!!