In describing the initiation and transmission of action potentials in neurons, it would be INCORRECT to say that
A. the rate of transmission of an action potential is directly related to the diameter of the axon.
B. information about the intensity of a stimulus is conveyed by changes in the size of the action potential generated.
C. the resting potential is maintained by differential ion permeabilities and the sodium-potassium pump.
D. a stimulus to the neuron can either depolarize or hyperpolarize the neuronal membrane.
B. information about the intensity of a stimulus is conveyed by changes in the size of the action potential generated.
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Match the interaction or bond on the left with the phrase that best describes it on the right
A) electrostatic interactions B) transient interactions at very close range C) sharing of electrons D) association of nonpolar groups E) noncovalent attraction among water molecules 1) hydrogen bond 2) ionic bonds 3) van der Waals interactions 4) hydrophobic interaction 5) covalent bonding
Leaflike outgrowths at the base of the leaf stalk are referred to as:
a. axils. b. blades. c. lamina. d. petioles. e. stipules.
Whether skin is penetrated
What will be an ideal response?
Individuals with asthma should exercise in cold weather whenever possible.
a. true b. false