Multiple Choice
The brain of early fishes consisted of three principal regions called
A) pons,cerebellum,cerebrum.
B) prosencephalon,mesencephalon,and rhombencephalon.
C) protoganglia,mesoganglia,and metaganglia.
D) ichthyospinal region,ichthyocerebrum,and ichthyocerebellum.
E) premedulla,medulla oblongata,and postmedulla.
Correct Answer:

Verified
Correct Answer:
Verified
Q3: Describe how the central nervous system and
Q4: Synapses where ionic currents flow directly across
Q5: Insects possess chemoreceptors that are located in
Q6: The most posterior region of the brain,really
Q7: The sense of smell is<br>A)coded by genes
Q9: The myelin sheath that insulates the axon
Q10: Pacinian corpuscles adjusting to new shapes,no longer
Q11: Which statement is NOT true about the
Q12: The event at an electrical synapse<br>A)always involves
Q13: Discuss what is meant by "action potential"