Which statement concerning a resting neuron is TRUE?
a. Both sodium and potassium are leaking into the cell.
b. Sodium is leaking into the cell through gated channels.
c. Both sodium and potassium are at a state of equilibrium.
d. The cytoplasm side of the membrane is slightly negative compared to the outside.
e. Voltage reversals happen spontaneously.
ANSWER: d
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The lumbar and cervical curves of the vertebral column are called
A) secondary curves. B) primary curves. C) quaternary curves. D) tertiary curves. E) None of the answers are correct.
If a scientist were to shoot protons through an atom as Rutherford did with gold foil, he or she would likely find that
A. most of the protons passed straight through the atom. B. few of the protons passed straight through the atom. C. most of the protons deflected or bounced back from the atom. D. most of the protons were absorbed by the atom. E. the atom emitted electrons.
A region of ________ occurs where deep waters of the ocean move upward to the surface
Fill in the blank(s) with correct word
Which of the following is NOT property of water?
A) It is composed of two polar covalent bonds B) It is an essential nutrient C) All three atoms in a water molecule can form hydrogen bonds D) It is a highly asymmetric molecule