What is the stimulus for the release of glucagon?
A. Decreasing blood sodium levels
B. Increasing blood calcium levels
C. Decreasing blood glucose levels
D. Increasing blood glucose levels
Answer: C
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Which skin receptors allow the skin to adapt to changes in temperature?
A. Nociceptors B. Photoreceptors C. Thermoreceptors D. Tactile corpuscles
If the body is sliced so the result is a top and bottom portion, this is referred to as the:
A) transverse plane. B) cross section. C) midsagittal plane. D) body's midline.
When a neurotransmitter causes the opening of chemically gated potassium channels on the postsynaptic cell, the postsynaptic potential that results is an
A. EPSP, which is a hyperpolarization B. IPSP, which is a hyperpolarization. C. EPSP, which is a depolarization. D. IPSP, which is a depolarization.
The cell is the basic unit of life. All cellular structures exhibit special functions. Match the structure with its function. What is the function of "D"?
A. major site of ATP synthesis when oxygen is available B. contains digestive enzymes C. outer boundary of cell, controls entry and exit of substances D. directs cellular activities, contains DNA E. site of protein synthesis