all of the above

a nerve

brains

spinal cord

liver cells

muscle cells

skin cells

stem cells

hormonal

electrical impulses

proteins

telegraph

100 miles per hour

1 meter per second

1 foot per second

150 meters per second

prison cells

muscle cells

stem cells

glial cells

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

1 year

1 month

100 years

10 years

wire

muscle

the brain

nerve