Q: Glands release what substance into the blood? Choices: - enzymes - toxins - acids - hormones A:
hormones
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Q: The chemical used by the ants to weed their garden turns out to be what kind? Choices: - sulfide acid - nitric acid - sealant acid - formic acid A:
formic acid
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Q: What term is used to describe molecules that contain carbon-nitrogen bonds? Choices: - compounds - ions - nitrites - amines A:
amines
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Q: What does interstellar medium consist of? Choices: - gravitational waves - the strong force - dark matter - thinly spread gas and dust A:
thinly spread gas and dust
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