The epithelium tissue layer of the skin is the dermis.
a. true
b. false
Answer: b. false
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Many snake venoms contain an acetylcholinesterase inhibitor. Predict what effect the presence of this toxin would have on muscles
A. There would be no effect. Acetylcholine is the ligand. B. Muscles would be prevented from contracting. C. Muscles would lose their ability to contract due to the loss of membrane potential. D. Muscles would contract uncontrollably.
An ________ of a nerve cell is the temporary depolarization and repolarization of the cell membrane.
Fill in the blank(s) with the appropriate word(s).
Which of the following are referred to as mononuclear phagocytes?
A. Lymphocytes and basophils B. Mast cells and eosinophils C. Basophils and eosinophils D. Monocytes and macrophages
Which of the following are functions of the skeletal system?
a) support the body b) hemopoiesis c) conduct impulses d) provide protection