If the CPI increases from 250 to 275 for one year, the rate of inflation for that year is

A sudden increase in inflation, ceteris paribus,

If the actual market price were fixed at $15 per unit in Figure 3.2, Figure 3.2 Supply and Demand

Curare is a poisonous plant extract. Curare molecules have a chemical structure like the neurotransmitter ACh. Curare can bind to the ACh receptor site on the chemically gated ion channels of a muscle cell. Even though curare will bind to the receptor site it will not open the ion channel and no ions will pass through. What do you think the symptoms of curare poisoning would look like?

In an isotonic contraction, the muscle changes in length and moves the “load”.

Muscle fatigue is a physiological response to excessive muscle stimulation and can not simply be “powered through” with effort.

During the refractory period, a muscle is unable to respond to stimuli temporarily.

During contraction, the length of myofibrils shrink.

During contraction, the Z discs become closer.

This question contains two parts.  You must answer both parts to receive full credit.   1) Describe a muscle twitch. Consider both how a twitch is generated and also how it used by the muscle.   2) Describe a graded response.  Consider both how it is generated and also how it used by the muscle. In your description, be sure to indicate how it is different than a muscle twitch.