A sarcomere is
A. the distance between Z lines.
B. formed from myosin only.
C. between the I bands.
D. the length of the H zone.
Answer: A
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A hormone that stimulates the opening of calcium channels and interaction with calmodulin __________.
a. is parathyroid hormone b. will bind to the mitochondria inside a cell c. will pass through the cell membrane owing to its lipid nature d. will trigger the activation of cytoplasmic enzymes
A person who has cerebrospinal fluid draining from the ear probably has a fracture of the ________ bone.
A. parietal B. zygomatic C. occipital D. frontal E. temporal
The pseudostratified columnar epithelial cells that line the tubules in this organ bear stereocilia that absorb excess fluid
A) penis B) epididymis C) seminal gland
Match the description with the type of receptor model.A. Nuclear receptor modelB. Membrane-bound receptor modelMembrane channels may be opened or closed
Fill in the blank(s) with the appropriate word(s).