The analysis of the smallest units of life is called ________.
A) embryology
B) cytology
C) physiology
D) histology
E) morphology
Ans: B) cytology
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Cell bodies of upper motor neurons that control the diaphragm are located in the:
a. pons b. medulla oblongata c. cerebral cortex d. all of the above
In the clotting cascade, thrombin feeds back and further stimulates its own activation, which is a positive feedback mechanism.
Answer the following statement true (T) or false (F)
Arrange the following events in proper sequence:
(1) The activating hormone interacts with a membrane-bound receptor. (2) Cyclic AMP causes the cell to carry out a function characteristic for that specific hormone. (3) Adenylyl cyclase catalyzes the transformation of ATP to cyclic AMP. (4) Adenylyl cyclase is activated. A. 1, 2, 3, 4 B. 1, 4, 3, 2 C. 3, 4, 2, 1 D. 1, 3, 2, 4 E. 1, 3, 4, 2
Perspiration contains which of the following substances?
A. Water B. Salts C. Wastes D. All of the other answers are part of perspiration.