The photosynthetic activity of cyanobacteria takes place in their:
A. thylakoids
B. mitochondria
C. pili
D. vesicles
E. vibrios
A. thylakoids
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You are studying cell cycle progression in yeast cells. If you could prevent cdc2 from associating with the mitotic cyclin, the cells would:
A. arrest in G1. B. arrest in G2. C. arrest in S. D. arrest in prometaphase. E. arrest in metaphase. 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 cdc2/cyclin complexes? 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 wristwatch suddenly stops working. After replacing the battery, the watch starts working again. Which of the following statements correctly describes the situation from the perspective of the scientific method?
A. This proves that a dead battery was the reason the wristwatch stopped working. B. This substantiates the theory that all wristwatches require functional batteries. C. This is consistent with the hypothesis that a dead battery caused the wristwatch to stop working. D. This leads to the prediction that a battery is required for wristwatch operation.
Plasma cells
A. are derived from T lymphocytes. B. function in blood clotting. C. function in cell-mediated immunity. D. produce and secrete antibodies.
To conserve heat in a cold environment and to cool vital parts of the body under heat stress, some animals have a ________ heat exchange system
Fill in the blank(s) with correct word