A molecule of methane, CH4, is known specifically as a(n) ________
A) compound
B) radioisotope
C) element
D) atom
E) anion
A
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True or False? A CT scan allows for a three-dimensional image to be generated.
Answer the following statement true (T) or false (F)
Choose the correct description of the Na+/K+ pump.
A. It actively transports 2 potassium ions out of the cell. B. It actively transports 3 sodium ions into the cell. C. It is an example of primary active transport. D. It generates a positive membrane potential.
The parasympathetic system will stimulate the digestive system activity and function
Indicate whether the statement is true or false.
Choose all that are characteristics of cardiac muscle.
a. Cells are long and cylindrical. b. Cells are short and branching. c. Cells have multiple nuclei at the periphery of the cell. d. Cells have one or two nuclei in the center of the cell. e. They are composed of thick and thin filaments. f. The functional contractile unit is the sarcomere.