What separates the outer ear from the middle ear?
A) auditory ossicles B) auricle
C) pharyngotympanic tube D) tympanic membrane
Answer: D
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A high local concentration of testosterone within the seminiferous tubules is essential for sustaining sperm production
Indicate whether the statement is true or false
Water molecules rely on ________ to hold them together
A) ionic bonds B) hydrogen bonds C) polar covalent bonds D) nonpolar covalent bonds
If a pluripotent cell differentiates to become a skin cell, it may revert back to its pluripotent condition and then become a muscle cell
Indicate whether the statement is true or false
Casein is a major protein produced by cells in:
a. Eccrine sweat glands b. Mammary glands c. Mucus-type salivary acini d. Serous-type salivary acini e. The exocrine pancreas