A PET scan can be used to monitor ________ when a person is performing specific _______ tasks
a. brain activity; physical
b. glucose activity; physical
c. brain activity; mental
d. hemoglobin activity; mental
e. hemoglobin; physical
ANSWER: c
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Legume plants with reduced amounts of leghemoglobin would be expected to:
A. be unable to form a nodule. B. fix more nitrogen than normal legume plants. C. fix less nitrogen than normal legume plants. D. be unable to form a symbiosis.
Which organism is most likely to have a type III survivorship curve?
A. an oak tree B. a domestic dog C. corn in a farmer's field D. Paramecium Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about the characteristics of a type III survivorship curve? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following statements concerning unsaturated fats is correct?
a. They are more common in animals. b. They have no double bonds in the carbon chains of their fatty acids. c. They are generally liquid at room temperature. d. They contain more hydrogen than do saturated fats having the same number of carbon atoms. e. They have fewer fatty acids per fat molecule than do saturated fats
DNA replication occurs during
A. prophase of mitosis. B. metaphase of mitosis. C. gap 1 of interphase. D. S phase of interphase.