Which of the following statements concerning play is false?
a. It may be an example of imprinting.
b. It may be a way of learning to coordinate movements.
c. It may help animals learn social skills.
d. It may be a way to practice adult behavior.
e. It may function as a means of exercise.
A
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You are studying cell cycle progression in an early frog embryo. If you were to inject a protein synthesis inhibitor into a cell during S phase, where do you predict that the cells would arrest?
A. G1 B. G2 C. Metaphase D. Telophase 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 know about protein synthesis and the cell cycle? How does it relate to the question? 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?
A plant with pink flowers is allowed to self-pollinate. Generation after generation, it produces pink flowers. This is an example of:
A. incomplete dominance. B. the law of independent assortment. C. true-breeding plant. D. interbreeding.
What is the theoretical limit of resolution of a light microscope used to look at a sample through oil?
a. 0.22 micrometers b. 0.2 nanometers c. 1 millimeter d. 0.305 micrometers
Which of the following substances is mismatched with its role?
a. Most B vitamins - coenzymes b. Vitamin A - incorporated into visual pigments c. Iron - component of thyroid hormones d. Vitamin D - aids in calcium absorption e. Phosphorus - bone formation, nucleotide synthesis