John was planning to ask Susan to marry him. When he saw Susan kissing another man at a party, he was quite upset. In this situation, John's seeing Susan kissing another man is _____, and it illustrates _____.
A. a stressor; distress
B. eustress; a stressor
C. distress; a stressor
D. astressor; eustress
Answer: A. a stressor; distress
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A) photosynthesis. B) phototaxis. C) light-driven ATP synthesis. D) light-driven ATP synthesis and phototaxis.
Which description of chromosome replication in bacteria is accurate?
a. Bacterial chromosomes are broken into individual segments containing one or more genes, which are then replicated. b. The cell’s circular chromosome is unzipped and the strands separated before the replication process can begin. c. Replication proceeds in both directions from the origin until both strands are complete chromosome loops. d. The cell’s circular chromosome begins unzipping and replicating in one direction from the origin to the terminal.
The most common cause of liver cancer in the United States is hepatitis ________ virus.
A. A B. B C. C D. D
Members of this group have a crystalline rod in their flagella
a. zooxanthellae b. ciliates c. euglenoids d. water molds e. diatoms