The number of neutrons in an atom can be determined by
A. adding the number of protons to the number of electrons.
B. adding the number of protons to the atomic number.
C. adding the atomic mass to the atomic number.
D. subtracting the atomic number from the atomic mass.
E. subtracting the atomic mass from the atomic number.
Answer: D
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If a fair-skinned person is sunburned, why does his or her skin turn red?
A) The blood supply to the skin decreases.
B) The number of red melanocytes in the skin increases.
C) The blood flow to the skin increases.
D) Increased heat causes the skin to turn red.
E) Melanocytes increase production of red pigments.
The hypodermis is characterized by an abundance of which tissue?
A. Adipose tissue B. Nervous tissue C. Statified squamous epithelium D. Dense irregular connective tissue E. Smooth muscle
Which is a notable difference between a sheep brain and a human brain?
A) The sheep's fornix is smaller. B) The sheep's cerebrum is smaller. C) The sheep's brain does not have a corpus callosum. D) The sheep's cerebellum is located more anteriorly.
During isovolumetric ventricular relaxation ________.
A. left ventricular pressure exceeds aortic pressure B. ventricular pressure is increasing C. the atrioventricular valves are open D. atrial pressure is less than ventricular pressure