Q: What is the name of the muscle at the end of the esophagus? Choices: - neck - intestine - throat - sphincter A:
sphincter
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Q: What is the largest known virus? Choices: - polyomavirus - influenza virus - pneumonia virus - mimivirus A:
mimivirus
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Q: What element is all life built around? Choices: - hydrogen - neon - oxygen - carbon A:
carbon
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Q: What is the term for very large arrays of tandemly repeating, non-coding dna? Choices: - recombinant dna - models dna - addition dna - satellite dna A:
satellite dna
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