Sodium chloride broth is selective.
A) True
B) False
A) True
Feedback: This answer is true, selective media contains a substance (high salt) that inhibits the growth of most bacteria. In this case only Group D enterococci will grow.
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A patient is brought to the hospital after experiencing acute fatigue. The patient’s condition deteriorates rapidly during testing, despite alarmingly high blood glucose levels, and he has no history of diabetes. Initial tests also show low levels of glucose-6-phosphate. The results of further diagnostic testing are not available yet, but based on what you know, which hypothesis could explain the patient’s condition?
a. The patient has a severe phosphate deficiency, preventing phosphorylation of ADP molecules. b. The patient has inherited a mutated form of gene that regulates phosphofructokinase production. c. The patient has been exposed to a substance that binds to hexokinase and inhibits its function. d. The patient has depleted acetyl CoA, which has caused his citric acid cycle to come to a complete stop.
Feathers in birds appear to have first evolved for insulation but later conveyed a new advantage in helping create light aerodynamic surfaces. This switch in function is an example of a(n) ________
A) paedomorphosis B) an analogy C) an adaptation D) exaptation
In countries that have large numbers of children under age 15, the population is
A) hard to predict. B) able to expand its carrying capacity. C) becoming larger. D) becoming smaller. E) staying the same.
The mesoderm develops into the dermis of the skin and the skeleton
Indicate whether the statement is true or false