Ques:Q: What can destroy living cells, produce mutations and cause cancer? Choices: - plasma rays - stingrays - prismatic rays - gamma rays A:

Ans:gamma rays
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Ques:Q: Which organ of the body do large tapeworms attack or block? Choices: - liver - heart - kidneys - intestines A:

Ans:intestines
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Ques:Q: Certain medications can suppress the immune system. this is an intended effect of drugs given to people with what? Choices: - benign tumors - infections - genetic disorders - transplanted organs A:

Ans:transplanted organs
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Ques:Q: How do planets usually rotate to their orbital planes? Choices: - exactly perpendicular - chaotic - randomly - nearly perpendicular A:

Ans:
nearly perpendicular
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