Ques:Q: Which organ protects the body from injury, water loss, and microorganisms? Choices: - kidney - stomach - liver - skin A:

Ans:skin
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Ques:Q: What current-carrying long coil of wire acts as a magnet? Choices: - converter - antenna - igniter - solenoid A:

Ans:solenoid
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Ques:Q: What are the three ways to control the transcription of an operon? Choices: - hormonal, repressive, activator, - repressive, activator, spontaneous - transparent , activator , inducible - repressive, activator, inducible A:

Ans:repressive, activator, inducible
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Ques:Q: A single, often oversimplified, path through which energy and matter flow through an ecosystem is also known as what? Choices: - the chain - fuel chain - life cycle - food chain A:

Ans:
food chain
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