The difference in electrical charge between two points:
A. is called the potential difference between those points.
B. is called the diffusion potential between those points.
C. is called the current, and is expressed in the units of millimoles.
D. is the same for all ions.
A
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Which of the following is not an accessory structure of the integumentary system?
a. Hair b. Skin c. Nails d. All of the above are appendages
Reflexes are described as
A. slow and spontaneous. B. pre-programmed and voluntary. C. spontaneous and self-initiating. D. rapid and involuntary.
Mediated transport is required in order for glucose, amino acids, and fatty acids to pass into cells because none of these substances can diffuse through plasma membranes.
Answer the following statement true (T) or false (F)
The hormone responsible for the development and maintenance of male secondary sex characteristics is
A. testosterone. B. gonadotropin-releasing hormone. C. FSH. D. LH.