The normal pH range of urine is ________
A) 7-9
B) 3.5-7
C) 4.5-8
D) 1-4.5
C
Explanation:
A) A pH of 9 is too high for a normal urine sample.
B) A pH of 3.5 is too low for a normal urine sample.
D) A pH below 4.5 is too low for a normal urine sample.
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Which of the following is a true difference between electrical and chemical synapses?
A) Electrical synapses are found in the central nervous system. B) Electrical synapses are the most common type of synapse. C) Electrical synapses typically send information in one direction (presynaptic cell to postsynaptic cell). D) Electrical synapses are much faster.
____________________ is responsible for maintaining the fluid nature of the plasma membrane in human cells
Fill in the blank(s) with correct word
Running away from a voracious predator at night will most likely engage your....
Compare regulating the amount of light with condensing the light
A) Condensers narrow the beam of light but do not change the amount of light. B) Both can be changed by using the iris diaphragm. C) Both can be used to concentrate the light passing through the specimen. D) You do not need to condense the light if you use the iris diaphragm correctly.