What happen to the concentration of some biocides in the members of a food chain?

How had the study of mitosis affected scientists knowledge of cancer

The structure that houses the cells genetic information.

What is the purpose of a punett square? a: finding the number of offspring people can haveb: predicting the outcome of genetic crosses c: finding how many genes a person has d: predicting the outcome of a coin toss (i think it's b or c but i'm not sure)