Which of the following is the most reliable form of birth control?
A) the rhythm method
B) a douche
C) birth control pills
D) coitus interruptus
E) they are all equally reliable
Ans: C) birth control pills
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A neurotransmitter binds chemically gated ion channels on the postsynaptic cell, causing a depolarization. Functionally, this neurotransmitter can be classified as excitatory
Indicate whether this statement is true or false.
The type of muscle cell that lacks transverse tubules, has a single nucleus, and is under
involuntary control is A) skeletal muscle. B) striated muscle. C) smooth muscle. D) cardiac muscle.
Sweat glands consist of specialized ______ cells
a. connective b. endocrine c. epithelial d. muscle e. nervous
The pancreas produces this protein-digesting enzyme
A) dipeptidase B) pepsin C) trypsin D) enterokinase