The ability of rats to cope with stress as adults can be affected by ____.
A. a nurturing mother
B. the number of siblings they have
C. the temperature they are raised in
D. the altitude they are born at
E. their sex
Answer: A
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Which of the following best describes the logic of scientific inquiry?
A) If I generate a testable hypothesis, tests and observations will support it. B) If my prediction is correct, it will lead to a testable hypothesis. C) If my observations are accurate, they will support my hypothesis. D) If my hypothesis is correct, I can expect certain test results. E) If my experiments are set up right, they will lead to a testable hypothesis.
In this chemical synapse, which structure represents the axon terminal of a presynaptic cell?
a. A b. B c. C d. D e. E
Microspores mature into
a. ovules. b. seeds. c. pollen grains. d. megaspores. e. pollen sacs
A cell is in metaphase if:
a. the chromosomes are visible as threadlike structures. b. the nuclear envelope is clearly visible. c. the chromosomes are aligned at the midplane of the cell. d. the chromosome are separated into distinct groups at opposite poles of the cell. e. cytokinesis is occurring.