Q: The single circular dna chromosome of bacteria is not enclosed in what, but instead occupies a specific location called the nucleoid within the cell? Choices: - atom - molecules - protons - nucleus A:
nucleus
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Q: What can carry nerve impulses from tissues and organs to the spinal cord and brain? Choices: - healthy neurons - motor neurons - respiratory neurons - sensory neurons A:
sensory neurons
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Q: In what part of the lungs is pulmonary gas exchanged? Choices: - bronchioles - trachea - bronchi - alveoli A:
alveoli
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Q: All enzymes have an optimal temperature and what? Choices: - shapes - weight - ions - ph A:
ph
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