Ques:Q: The lungs are a series of ever-narrowing tubes that end in a myriad of tiny sacs called what? Choices: - brachii - testes - glands - alveoli A:

Ans:alveoli
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Ques:Q: The same reaction regenerates pyruvate, which is transported to which cells? Choices: - outermost - skin - symbionts - mesophyll A:

Ans:mesophyll
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Ques:Q: Neurologists are physicians who specialize in disorders of what system? Choices: - digestive system - musculoskeletal system - circulatory system - nervous system A:

Ans:nervous system
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Ques:Q: Vertebrates also require relatively large quantities of calcium and phosphorus for building and maintaining what? Choices: - brain cells - blood - metabolism - bone A:

Ans:
bone
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