According to reference table n, which pair of isotopes spontaneously decays?
(1) c-12 and n-14 (3) c-14 and n-14
(2) c-12 and n-16 (4) c-14 and n-16

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

Mitosis is a type of cell division that produces cells that are identical to the parent cell. meiosis is a different type of cell division that produces cells that carry have a genetic material of the parent cell. based on the information provided how do the purpose of mitosis and meiosis differ

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.