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1. What is the condition called when a subject is in a zone of little gravity and appears weightless?
- Hypoxic
- Hyperbaric
- Microgravity
- Hyperthermic
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2. How does microgravity affect lymphocyte, NK and T cell activation?
- No effect
- Decreases
- Increases
3. Why are astronauts prone to fainting on return to Earth?
- More gravity
- High blood pressure
- Redistribution of blood flow back to legs
- Much more light
4. What is not a way that immune function could have been affected?
- Emotional stress
- Lack of light
- Mechanical forces
- Physical stress
5. Urinary and faecal Ca ions increase by how much in the first few days of space?
- 60-70%
- 10-20%
- 30-40%
- 50-60%
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