In a chemical reaction, the element 13Al will most preferably ________.
A) lose three electrons and become positively charged
B) gain five electrons and become negatively charged
C) lose five electrons and become positively charged
D) gain three electrons and become positively charged
Ans: A) lose three electrons and become positively charged
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Which of the following statements is false?
A. An excess intake of food results in a shift in metabolism to mostly catabolic processes. B. For an animal in energy balance, the amount of calories obtained from food is equal to the amount of calories used to meet its metabolic needs. C. Animals in a negative energy balance will begin to deplete their glycogen and fat reserves. D. A net positive energy intake results in the growth of fat stores. E. None of these statements is false.
The foramen magnum is a passageway for
a. nasal cavities. b. eye sockets. c. spinal cord. d. Haversian (central) canals. e. synovial fluid.
Much has been written about p53 in terms of cancer biology. What is p53, and what is its significance?
What will be an ideal response?
The instrument that produces a bright image of the specimen against a dark background is called a (n) ________ microscope.
A. bright-field B. electron C. dark-field D. phase-contrast