32. What are the correct organs of excretion? A. Kidney, Stomach, Liver B. Liver, Kidney, Heart C. Lungs, Liver, Kidney D. Skin, Heart, Stomach
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We can represent atoms by listing the number of protons, neutrons, and electrons-for example, 2p, 2n, 0, 2e - for helium. Which of the following represents the 18O isotope of oxygen? a. 6p+, 8n0, 6e-b. 8p+, 10n0, 8e-c. 9p+, 9n0, 9e-d. 7p+, 2n0, 9e-e.
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