Answer:
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They are thus known as the "supporting cells" of the nervous system. The four main functions of glial cells are: to surround neurons and hold them in place, to supply nutrients and oxygen to neurons, to insulate one neuron from another, and to destroy and remove the carcasses of dead neurons (clean up).
The correct answer would be "Density is the amount of matter in a certain volume"
Answer: <span>95 to 133 bpm</span>
The equation for maximum heart rate would be:
max HR= 220- age
max HR= 220-30= 190
The equation to find the target for heart beat in medium intensity exercise would be:
target HR= max HR * 50-70%= 190 * 50-70%= <span>95 to 133 bpm</span>