A darkly staining region that may appear within the nucleus on an electron micrograph is called a(n) . This is the location of rRNA production.

What contributes to the high level of biodiversity found in wetlands? a. the large amount of available organic matter to organisms that are food for larger organisms b. the amount of available water for organism use c. the high nutrient availability d. all of the above select the best answer from the choices provided a b c d