Lactase is produced in the:
a. stomach
b. small intestine
c. gallbladder
d. pancreas
Answer: b. small intestine
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The enamel of the mammalian tooth is composed of crystals of
A) Calcium carbonate. B) Calcium fluoride. C) Calcium phosphate. D) Calcium chloride.
The estrus cycle of a ewe lasts about _________ hours
Fill in the blank(s) with correct word
Which of the following is a female accessory sex organ?
a. bulbourethral gland b. clitoris c. prostate gland d. seminal vesicle e. ovary
The neuromuscular junction
a. is the junction between a motor neuron and a skeletal muscle fiber. b. transmits an action potential between the nerve cell and muscle cell on a one-to-one basis. c. may produce either an EPSP or an IPSP on the motor end plate. d. both (a) and (b) above. e. all of these answers.