During aerobic respiration, the breakdown of a molecule of glucose yields a net of up to two molecules of ATP.
a. true
b. false
Ans: b. false
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Genetic drift occurs in a population. Which of the following statements might be true?
A) Genetic drift increased the population's fitness. B) Genetic drift decreased the population's fitness. C) The population was relatively small. D) The population experiences a decrease in genetic variation. E) Any of the statements can be true.
True or false: In general, males and females of the same species can produce fertile offspring
A. true B. false
Scientists have known for centuries that we "speak" with the left hemisphere of the brain. You perform an experiment in which your subject was presented with an apple only to the left visual field
When asked to identify what he saw, the subject denied seeing anything. However, when asked to point to the correct object, he was able to see and identify the apple. Which reason would explain this deficit? A) The subject has a brain lesion in the frontal lobes. B) The subject suffered head trauma to the back of his head. C) The subject has a tumor in the left parietal lobe. D) The subject had his corpus callosum severed to control epileptic seizures.
All of the following statements are true about mutations EXCEPT:
a) Most mutations are harmful or neutral to the organism in which they occur. b) A mutation is any change in an organism's DNA. c) The origin of genetic variation is mutation. d) Mutations are almost always random with respect to the needs of the organism. e) The mutation rate can be affected by the bottleneck effect.