Lactase is produced in the:
a. stomach
b. small intestine
c. gallbladder
d. pancreas
Answer: b. small intestine
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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.
The enamel of the mammalian tooth is composed of crystals of
A) Calcium carbonate. B) Calcium fluoride. C) Calcium phosphate. D) Calcium chloride.