50 POINTS PLS HELP Chemicals like polybrominated diphenyl ethers (PBDE) are present in the water in the Great Lakes. These chemicals are toxic when absorbed by the body. Which human health effect(s) can result from the PBDEs in the Great Lakes?

I. Thyroid and neurobehavioral disorders
II. Cancer
III. Birth defects and infertility

A. II only
B. I and II
C. II and III
D. I, II, and III

There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for example the cells that line the digestive tract. these cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. what mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell