One Possible Disadvantage to a Nerve Net Is That It

question 50

Multiple Choice

One possible disadvantage to a nerve net is that it might conduct impulses in two directions from the point of the stimulus. Most of the synapses in vertebrates conduct information in only one direction

• A) as a result of the nodes of Ranvier.
• B) as a result of voltage-gated sodium channels found only in the vertebrate system.
• C) because vertebrate nerve cells have dendrites.
• D) because only the postsynaptic cells can bind and respond to neurotransmitters.
• E) because the sodium-potassium pump moves ions in one direction.

---

Definitions:

Response Differentiation

A process in operant conditioning where behaviors are modified by being reinforced only when they meet a certain criterion.

Positive Reinforcer

A stimulus which, when presented after a behavior, increases the likelihood of that behavior being repeated.

Reinforce

To strengthen a behavior by providing a consequence that increases the likelihood of the behavior being repeated.

Avoidance Conditioning

A response that prevents the occurrence of a punisher. This increases the probability of a low-occurring response and maintains that response at a high level. The principle of avoidance conditioning states that a behavior will increase in frequency if it prevents a punisher from occurring.