The breathing rate of an infant
a) Is twice as fast as an adult
b) Causes greater water loss from the lungs
c) Removes less carbon dioxide than in an adult
d) Makes the infant blood more acidic
e) Is normal to an adult
b
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The layer of the epidermis that includes melanocytes and a single row of columnar cells that undergo mitosis is the
A. stratum granulosum. B. stratum spinosum. C. stratum corneum. D. stratum basale.
Which is TRUE about receptor potentials?
A. They are action potentials. B. They always trigger action potentials. C. They vary in magnitude with stimulus strength. D. They propagate without decrement. E. They generally occur at the axon hillock of afferent neurons.
The spinous process has a bifid tip in most __________ vertebrae.
A. cervical B. thoracic C. lumbar D. sacral E. coccygeal
Which hormone is absolutely necessary for ovulation to occur?
A) LH B) FSH C) progesterone D) estrogen