When a nursery worker pinches off the terminal buds on a young plant to make it grow bushy, which plant hormone, when produced, is mainly responsible for growth of side branches?
A) an auxin
B) a gibberellin
C) a cytokinin
D) abscisic acid (ABA)
Answer: C
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In Type I diabetes, the body fails to produce insulin and thus individuals must inject themselves with insulin before eating
Based on your knowledge of the control of glucose levels in the blood, what would be the result of a Type I diabetic injecting themselves with too much insulin? A. Their blood sugar levels would drop to potentially dangerous low levels. B. Excess stores of glycogen would be broken down and released from the liver. C. Glucagon would be released from the pancreas. D. Muscle tissue would begin to break down. E. All of the answer options are correct.
Incorporation of urea into media is used to enhance the detection of which organism?
a. U. urealyticum b. M. pneumoniae c. M. hominis d. M. genitalium
Scientists want to determine whether chemical X, a component of fertilizer, is harmful to fish. They treat fish in the
laboratory with increasing amounts of the chemical for one week and then measure their viability. When researchers designed this experiment, they wrote "chemical X is toxic to fish" in their lab notebook. This statement is a(n) ____.
a. interpretation b. prediction c. hypothesis d. result e. theory
A receptor protein in a membrane that recognizes a chemical signal is most similar to __________
A) the active site of an allosteric enzyme in the cytoplasm that binds to a specific substrate. B) RNA specifying the amino acids in a polypeptide. C) a particular metabolic pathway operating within a specific organelle. D) an enzyme with an optimum pH and temperature for activity. E) genes making up a chromosome.