Which carpal bone is not in the proximal row of carpal bones?
A. scaphoid
B. capitate
C. lunate
D. triquetrum
E. pisiform
Answer: B
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An ________ is a mature bone cell.
A. osteoprogenitor B. osteoblast C. osteoclast D. osteocyte
Which best describes a hydrolysis reaction?
A. Molecules are broken down into smaller ones by breaking covalent bonds within water molecules and transferring hydrogen atoms and hydroxyl groups to the smaller ones. B. Electrically charged molecules separate into ions when they dissolve in water, and then hydrogen ions and hydroxyl groups covalently attach themselves to the oppositely charged ions. C. Large molecules are assembled from smaller ones by breaking water into hydrogen and hydroxyl ions. D. Dissolving a large molecule in water reduces it to its individual atoms. E. The breaking of hydrogen bonds between any two molecules.
The constant appearance of new strains of influenza virus is an example of ________
A) evolution B) survivorship C) a model D) selection pressure E) success
Which of the following processes occurs during the contraction of skeletal muscle?
A. Calcium ions dissociate from troponin. B. Z discs move closer together. C. Myofibrils slide over each other. D. The myofilaments become shorter. E. Calcium ions are taken up by the terminal cisterns.