Which of the following statements concerning the epidermis is true?
A. The epidermis contains numerous blood vessels.
B. The epidermis is very permeable to water-soluble molecules.
C. The epidermis is nourished by blood vessels located in the dermis.
D. The most numerous cells in the epidermis are the melanocytes.
E. The dermis is superficial to the epidermis.
C
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The ________ ear collects sounds waves and transmits them to the ________ ear, which contains auditory ossicles
A) inner; middle B) outer; middle C) outer; inner D) middle; inner E) superficial; deep
Which of the following is not a reason muscular weakness tends to develop in old age?
A. There are fewer and smaller mitochondria in aged muscle. B. Aged muscle has less glycogen, myoglobin, and creatine phosphate. C. The muscle fibers of aged muscle no longer synthesize myosin. D. Aged muscle fibers have fewer myofibrils. E. There are fewer motor neurons in the spinal cord.
The hyoid bone is part of the ________ skeleton.
A. axial B. appendicular
AB ? A + B is to decomposition as A + B ? AB is to
A) exchange. B) synthesis. C) combustion. D) replacement. E) metabolism.