1. What process distinguishes malignant tumors from benign tumors?

1. Rate of tumor growth
2. Size of tumor
3. Location of tumor
4. Metastasis
5. Nothing, they are the same thing

2. What is not a significant factor increasing the likelihood of developing ovarian and breast cancers?

1. BRAC1 or BRAC2 mutations
2. Having a child after the age of 30
3. Smoking
4. Hormone replacement therapy
5. Being overweight following menopause

3. In human studies, which of these events were not accompanied by stressful experiences?

1. Early death following stem cell transplants
2. Progression of cancer
3. Cancer related mortality
4. Development of cancer
5. Increased treatment response 

4. Which of these is an action through which stressful events can influence the growth of existing tumors?

1. Hormones
2. Neurotransmitter
3. Immune changes
4. Epinephrine receptors
5. All of the above

5. Obesity is associated with cancer risk in what proportion of cases?

1. 0%
2. 5%
3. 10%
4. 15%
5. 20%

6. Which of these ‘superfoods’ have been associated with a reduction in cancer risk?

1. Kale
2. Goji berries
3. Garlic
4. Broccoli
5. There is generally no scientific evidence to support ‘superfoods’ and reduced cancer risk

7. What percentage of cancer patients experiencing depression are not being treated for it?

1. 24%
2. 43%
3. 59%
4. 73%
5. 85%

8. Which types of cancers are more likely to be altered by chemotherapy?

1. Fast-growing tumors
2. Slow growing tumors
3. Metastasized tumors
4. Localized tumors
5. Thyroid tumors

9. Radiation is most often used to treat:

1. Fast-growing tumors
2. Slow growing tumors
3. Metastasized tumors
4. Localized tumors
5. Thyroid tumors

10. Which of the following is least often considered a factor influencing the type of radiation chosen?

1. Type and size of tumor
2. Location of tumor
3. Proximity to normal tissues that are sensitive to radiation
4. Age of patient receiving the treatment
5. Gender of patient receiving the treatment