In this view of the olfactory epithelium, what structure does number 4 indicate?
A. Olfactory hair
B. Olfactory gland
C. Olfactory bulb
D. Basal cell
E. Supporting cell
D
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Which is not a function of the placenta in humans?
A. Production of hormones B. Transfer of blood between mother and embryo C. Exchange of respiratory gases D. Transmission of maternal antibodies E. Exchange of nutrients
The most numerous WBCs in a differential count of a healthy individual are
A) neutrophils. B) basophils. C) lymphocytes. D) monocytes. E) leukocytes.
Which of the following events occurs during anaphase?
A. The nuclear envelope degenerates. B. Cytokinesis completes. C. Chromosomes migrate to opposite poles of the cell. D. Chromatin strands condense to form chromosomes. E. Spindle fibers are formed.
Action potential frequency is best described as:
A) The strength of the muscle contractions. B) The distance the action potential travels in a second. C) The duration of an action potential. D) The number of action potentials produced per unit of time.