How many electrons are in the element americanium?

Mrna decodes information from the original dna master plan to build proteins in the during the process of ribosomes.

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.

Where is most of the fresh water on earth found a in the ocean b in glaciers and in ice caps c in rivers d in the soil