The plant in Row B of the accompanying figure demonstrates a photoperiodic response characteristic of:
a. short-day plants.
b. day-neutral plants.
c. long-day plants.
d. long-night plants.
e. intermediate-day plants.
c
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If cells from a wing are transplanted to the leg prior to their determination, into what will they likely develop?
A. wing cells B. leg cells C. a mixture of wing and leg cells D. cannot be determined E. undifferentiated cells Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about determination? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
When an apical meristem cell divides, one daughter cell is called the initial and the other is called the derivative. What are the fates of these cells?
a. The initial is used to form primary meristems, and the derivative remains part of the apical meristem. b. Both the initial and the derivative remain part of the apical meristem. c. The initial remains part of the apical meristem, and the derivative is used to form primary meristems. d. Both the initial and the derivative are used to form primary meristems. e. The initial is used to form primary meristems, and the derivative is used to form secondary meristems.
What is one drawbacks to using pheromones for communication?
a. They are effective only at night. b. They can only affect unrelated species. c. They are toxic to unrelated species. d. They require little energy for production. e. They transmit information slowly.
Which of the following occurs when there are more reactants than products for a reaction?
a. The reaction is pushed toward the reactants by the low concentration of products. b. The reaction is pulled toward generating more reactants. c. The greater concentration of reactants pushes the reaction forward, toward generating more products. d. The reaction is pulled in the forward direction by the high concentration of products.