(TCO 1) My dog will eat more of her food when I pour bacon
(TCO 1) My dog will eat more of her food when I pour bacon
(TCO 1) My dog will eat more of her food when I pour bacon grease over the foo… Show more Question 1.1. (TCO 1) My dog will eat more of her food when I pour bacon grease over the food before I give it to her. This is an example of a(n) _____. (Points : 4) observation hypothesis experiment theory All of the above Question 2.2. (TCO 1) April read a magazine article that said taking vitamin C supplements will decrease the number of colds people have over the winter. She decides to test this hypothesis by examining the effect of vitamin C on some of her coworkers compared with what happens with a control group. Which of the following would be the best control for this experiment? (Points : 4) Randomly selected coworkers who are given a placebo instead of a vitamin C supplement Randomly selected coworkers who are given only small doses of vitamin C Volunteers from the office building next door who do not take vitamin C Volunteers from her office who agree to take a placebo instead of vitamin C Volunteers from the office building next door who take vitamin C Question 3.3. (TCO 1) Control subjects in a double-blind test of a new drug are (Points : 4) informed of what drug they are getting. informed of what drug they are getting but their private physicians are not. given larger doses of the drug. infected with a different disease than the experimental subjects. not given the experimental drug but are otherwise treated the same as the experimental subjects. Question 4.4. (TCO 2) Which particles are found in the nucleus of an atom? (Points : 4) Only neutrons Protons and electrons Protons and neutrons Only electrons Only protons Question 5.5. (TCO 2) Which of the following involves a change of state? (Points : 4) Melting ice Freezing water Vaporization of alcohol All of the above None of the above Question 6.6. (TCO 2) Which of the following is a not a homogeneous mixture? (Points : 4) 5% glucose IV solution Iced tea Salt water Skim milk Ice cream float 13. (TCO 4) The solute of a solution (Points : 4) is never a solid. is the substance present in the smallest concentration. can be a liquid or gas. is a liquid. can be a solid, liquid, or gas. Question 14.14. (TCO 5) Why are most alcohols water soluble? (Points : 4) Because alcohols have a high rate of evaporation Because of hydrogen bonding Because the hydroxyl group of alcohols is easily removed Because alcohols and water have similar boiling points Because alcohols are nonpolar Question 16.16. (TCO 6) Lysosomes play a role in _____. (Points : 4) lipid synthesis cellular respiration photosynthesis intracellular digestion protein synthesis Question 17.17. (TCO 6) Where does photosynthesis occur in a eukaryotic cell? (Points : 4) Smooth endoplasmic reticulum Mitochondrion Ribosome Chloroplast Nucleolus Question 20.20. (TCO 7) Which waste product does yeast produce under anaerobic conditions? (Points : 4) Ethyl alcohol Pyruvic acid Lactic acid Glucosamine Creatine • Show less
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