Which of these is not an internal factor in causing cancer?

Does masterbation affect height growth or loss of growth hormone?

Which chemical equation is unbalanced? which chemical equation is unbalanced

Urgent. the table shows the relative blood flow through some organs in the human body that is, the percentage of blood that flows through a given organ, through which organ(s) does all the blood flow? explain the effect of exercise on blood flow to skeletal muscles.