Radiation therapy for cancer works because a cell's DNA is exposed during mitosis and is most vulnerable to damage from radiation. Because cancer cells are uncontrollably undergoing mitosis, they die when exposed to the treatment. The common side effects of radiation treatment are hair loss and vomiting. What does this imply?
A) Radiation treatment will be ineffective in treating stomach cancer.
B) Radiation treatment will be most effective for the treatment of skin and stomach cancers.
C) Both skin and stomach cancer will be made worse if treated with radiation.
D) Both stomach and skin cells are constantly being replaced.
E) Radiation therapy is an ineffective way to treat cancer.
D) Both stomach and skin cells are constantly being replaced.
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Which of the following is illustrated by one bird species evolving into five other species, each with their own unique characteristics?
a. adaptive radiation b. dispersal c. adaptation d. descent with modification
If you are blood type A,
a. you carry antibodies for type B blood. b. you carry markers for type B blood. c. you can donate blood to a person with type O blood. d. you can receive blood from a person with type AB blood. e. you can receive type B blood.
The difference between what two pressures drives air into and out of the lungs?
A) atmospheric and intrapleural B) pulmonary venous and atmospheric C) central venous and intracoronary D) atmospheric and intra-alveolar E) intrapleural and intra-alveolar
Based on the data in the accompanying figure, the infant with the highest probability of survival would weigh:
a. 11 lbs.
b. 9 lbs.
c. 7 lbs.
d. 5 lbs.
e. 3 lbs.