Cancer kills by invading key organs (like the intestines, lungs, brain, liver, and kidneys) and interfering with body functions that are necessary to live. Untreated cancer commonly causes death. ... Even when it can't cure the cancer, treatment can often help people live longer.
Answer:
Comes from carbon in glucose and the oxygen used in cellular respiration
Explanation:
Carbon dioxide is a waste product of cellular respiration
Mitosis is important for sexual reproduction indirectly. It allows the sexually reproducing organism to grow and develop from a single cell into a sexually mature individual. This allows organisms to continue to reproduce through the generations.