IgE is found in extremely small amounts in serum
Indicate whether the statement is true or false.
Answer: TRUE
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The hormone indicated by the small oval on the left in the figure could be which of the following?
A. testosterone B. insulin C. growth hormone D. ADH
In general, the vessels that carry blood away from the heart in a closed circulatory system are referred to as
A. arteries. B. veins. C. capillaries. D. sinuses. E. auxiliary hearts.
An insect such as a moth or cricket detects sound
a. though specialized tympanic membranes located near the head. b. through a thinned region of the exoskeleton. c. through general mechanoreceptors on its skin. d. by using a specialized organ that measures the frequency of vibration of the surrounding air particles. e. through a series of mechanoreceptors arranged in a lateral line.
Which of the following water-borne pathogens are protozoans?
A. Hepatitis A B. Norwalk virus C. Giardia D. Vibrio E. Shigella