What function of the muscular system is performed when a person's facial expression can tell you how they feel?
A. Communication
B. Stability
C. Movement
D. Heat production
Answer: A
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At resting membrane potential, passive and active forces exactly balance each other so there is no net movement of ions across the membrane
Indicate whether the statement is true or false
Hyperparathyroidism results in the softening and deformation of the ____
a. bones b. kidneys c. intestines d. adrenal glands
Which of the following pairs of structures are the most similar in function?
A. Distal convoluted tubule and ascending limb of the loop of Henle. B. Ascending limb and descending limb of the loop of Henle. C. Proximal convoluted tubule and distal convoluted tubule. D. Distal convoluted tubule and collecting duct.
The placenta and membranes surrounding the embryo develop from the
A. morula. B. blastocyst. C. trophoblast. D. inner cell mass. E. blastocele.