In the condition known as cryptorchidism, ___________.
A) the testes fail to descend into the scrotum.
B) the prostate gland is enlarged.
C) sperm cells are not produced.
D) the testes are surgically removed.
E) the foreskin has been surgically removed.
A) the testes fail to descend into the scrotum.
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Molecules that can be positive or negative, depending on the pH of the solution, are called __________
Fill in the blank with the correct word.
The walls of kidney tubules are formed by ________ epithelium, which functions in resorbing materials filtered from blood plasma such as nutrients, ions, and water.
A. simple squamous B. stratified squamous C. simple cuboidal D. stratified columnar E. stratified cuboidal
The stereocilia of cochlear hair cells project into the
A. modiolus. B. tectorial membrane. C. spiral ganglion. D. helicotrema. E. basilar membrane.
The stomach
A. secretes the hormone gastrin. B. is the site of all mechanical digestion. C. bears numerous folds called plicae circulares. D. has two muscle layers in the tunica muscularis. E. All of the choices are correct.