Answer the following question given this paragraph: Hepatitis B is a disease of the liver. It is caused by a virus called hepatitis B, which can be passed through sexual activity. Hepatitis B causes vomiting. It also causes yellowing of the skin and eyes. The disease goes away on its own in some people. Other people are sick for the rest of their lives. In these people, the virus usually damages the liver. It may also lead to liver cancer. Medicines can help prevent liver damage in these people. There is also a vaccine to protect against hepatitis B. Q: What part of the body does hepatitis b effect? A:
OPTIONS:
- kidney
- joints
- heart
- liver
liver
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Answer the following question given this paragraph: Q: What is common in two eukaryotic proteins? A:
OPTIONS:
- DNA
- cells
- translation
- one domain
one domain
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Answer the following question given this paragraph: The regular, rhythmic contractions of the diaphragm are controlled by the brain stem. It sends nerve impulses to the diaphragm through the autonomic nervous system. The brain stem monitors the level of carbon dioxide in the blood. If the level becomes too high, it "tells" the diaphragm to contract more often. Breathing speeds up, and the excess carbon dioxide is released into the air. The opposite events occur when the level of carbon dioxide in the blood becomes too low. In this way, breathing keeps blood pH within a narrow range. Q: What monitors the level of carbon dioxide in the blood? A:
OPTIONS:
- the lungs
- the heart
- the kidneys
- the brain stem
the brain stem
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Answer the following question given this paragraph: lava flows from a volcano and hardens into rock. Q: Lava flows from a volcano and hardens into what? A:
OPTIONS:
- life
- snow
- sand
- rock
rock
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