Question: Q: What do all respiratory diseases affect? Choices: - liquid exchange process - helium exchange process - transit exchange process - gas exchange process A:
Answer: gas exchange process

Question: Q: What protects reptiles from injury and loss of water? Choices: - hairs - pores - tail - scales A:
Answer: scales

Question: Q: Two events are defined to be simultaneous if an observer measures them as occurring at what? Choices: - midnight - opposite times - different times - same time A:
Answer:
same time