The DNA is being replicated during the S phase.
The answer is mutagens. In genetics, mutagen is a physical or chemical agent that changes the genetic material usually that of DNA of an organism and thus increases the frequency of mutations above the natural background level. DNA changes caused by mutagens may harm cells and cause certain diseases such as cancer.
Answer:
The answer "to obtain an average that accurately represents fish from this area
" should be the answer because a large sample size is crucial for being a good representation of the whole population, and by taking many samples from each fish scientists can then determine the average mercury concentration within each fish, which then allow them to give a good estimate of the mercury concentration in the fish population because of their sufficient sample size.
Explanation: