How can the nicotine in a nursing mother’s milk affect nursing babies? it can make bones weak. it can cause vomiting and diarrhea. it can cause low birth weight. it can make babies hungry.

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b