Imagine that you have been hired as a chemist and your first task is to examine a newly discovered atom. The paperwork you are given states that its atomic number is 110. What does this mean?
A) The atom contains 55 electrons. B) The atom contains 110 protons.
C) The atom contains 55 protons and 55 neutrons. D) The atom is an isotope.
B
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What are the three factors that regulate blood pressure?
What will be an ideal response?
In crassulacean acid metabolism (CAM) plants
A) stomata open during the day. B) malate is stored in large vacuoles. C) CO2 is transported directly into mesophyll cells. D) the amount of carbon assimilated for each water molecule transpired is only 25 percent of that in C3 plants. E) carboxylation and decarboxylation reactions occur in the same location at the same time.
Which structure controls the activity of all the others?
A) ovary B) testis C) hypothalamus D) pituitary gland
Many plants devote significant resources to growing colorful, fragrant flowers filled with nectar. What does this illustrate the importance of?
A. Outcrossing B. Nutrient storage in seeds C. Long-term nutrient storage in perennial plants D. Chemical signaling among plants