Author Question: The fact that the risk of cancer increases with age is due to which of the following? A) People ... (Read 52 times)

evelyn o bentley · **on:** Jul 12, 2018

The fact that the risk of cancer increases with age is due to which of the following?

A) People use more carcinogens when they are younger.
B) Cellular repair mechanisms are thought to become less effective as we age.
C) Older adults are more likely to be affected by environmental factors.
D) None of the answers is correct.

Question 2

Malignant tumors are

A) cancerous.
B) always harmful.
C) invasive to surrounding tissues.
D) All of the answers are correct.