Ques: Q: What is the long, narrow tube that carries food from the pharynx to the stomach by the mechanism of peristalsis? Choices: - gallbladder - liver - spinal cord - esophagus A:
Ans: esophagus

Ques: Q: Most people can survive only a few days without what essential substance? Choices: - air - food - carbon - water A:
Ans: water

Ques: Q: Soda fizzes when what common gas comes out of solution? Choices: - nitrous oxide - carbon monoxide - helium - carbon dioxide A:
Ans: carbon dioxide

Ques: Q: Hormones send what through your body? Choices: - nutrients - cells - proteins - signals A:
Ans:
signals