Electrons in an atom occupy an orderly series of electron shells or
A) energy levels.
B) electron clouds.
C) energy circles.
D) electron lanes.
E) energy fields.
A
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What type of neurotransmitter is used by the pathway shown in the figure?
a) Norepinephrine b) Acetylcholine c) Epinephrine d) Dopamine e) Serotonin
A pre-synaptic axon contacts the dendrite of a post-synaptic neuron. How would you describe the synaptic relationship?
A. It is an electrical synapse. B. It is an excitatory synapse. C. It is an axosomatic synapse. D. It is an axoaxonic synapse. E. It is an axodendritic synapse.
Protons and electrons exist in every atom nucleus except hydrogen. Is this statement true or false and why?
What will be an ideal response?
The storage and release of calcium ions is the key function of the:
A) sarcoplasm. B) mitochondrion. C) sarcoplasmic reticulum. D) sarcolemma.