An animal that makes eggs and sperm is a _____
a. zygote c. gastrula
b. hermaphrodite d. gamete
B
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3-phosphoglycerate is to C3 plants as ________ is to C4 plants.
Fill in the blank(s) with the appropriate word(s).
Of the following four islands at the same
latitude, the one possessing the fewest species is a. 1,000 square kilometers in area and 300 km from the mainland. b. 3,000 square kilometers in area and 100 km from the mainland. c. 100 square kilometers in area and 3,000 km from the mainland. d. 300 square kilometers in area and 1,000 km from the mainland. e. none of these
You are asked to participate in a clinical trial for a new drug that can activate telomerase. Which of the following is a likely risk of such a drug?
A. decreased capacity for tissue repair B. decreased telomere length C. increased vulnerability to cancer D. premature aging
All of the following are problems in the management of antibiotic usage, except
A. the selection of antibiotics based on results of appropriate antibiotic susceptibility testing. B. the sale of many antibiotics over-the-counter in foreign countries. C. the use of antibiotics for upper respiratory viral infections. D. extensive use of broad-spectrum drugs for minor infections. E. There are no exceptions here. All of these are challenges in the management of antibiotic usage.