1
AssignmentMultiple Choice

Chain of Infection

Question 1 • 2026-2027 EDGE Human Anatomy and Physiology A

Which of the following is true regarding normal cell division?

Answer
A
Cells divide as fast as they can.
B
Cells are controlled by contact inhibition.
C
Cells invade other tissues.
D
Cells only divide once a year.

Explanation

Normal cells are regulated by signals that control when they grow and divide. Contact inhibition is one such control: cells typically stop dividing when they touch neighboring cells and fill the available space. Cells do not divide as fast as possible or invade other tissues; those behaviors are associated with cancer cells.

AI-written and checked against the verified answer.

Next