Which of the following is a coenzyme?
A) zinc
B) vitamin B6
C) iron
D) iodine
Answer: B
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The three major body regions of many arthropods are
A. head, gastrovascular cavity, and thorax. B. head, abdomen, and legs. C. head, gills, and legs. D. head, thorax, and abdomen. E. head, thorax, and legs.
Which of the following is not a property of B cells?
A. They require antigen presented with MHC proteins. B. They have receptors called immunoglobulins. C. There are low numbers circulating in the blood. D. They mature in the bone marrow. E. They produce plasma cells and memory cells.
Four of the five choices listed below are related by a
similar function. Select the exception. a. intercostal muscles b. pleural sac c. atmospheric pressure d. diaphragm e. carotid bodies
Where is the electron transport chain located in bacterial cells?
A. Periplasm B. Mitochondrial inner membrane C. Mitochondrial outer membrane D. Plasma membrane