Anitrogen atom has 7 protons, and the most common isotope of nitrogen has 7 neutrons. a radioactive isotope has 9 neutrons. what are the atomic numbers and mass numbers of the stable and radioactive forms of nitrogen?

The image below shows a weather service map. which details best describe this map? check all that apply

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?

Need asap plz hurry im being timed when a body cell divides through the process of mitosis, the chromosomes in the daughter cells a. represent only the healthiest chromosomes from the parent cell. b. represent only half of the chromosomes in the parent cell. c. are identical to the chromosomes of the parent cell. d. are formed when chromosomes from the parent cell cross over.