1 foot per second

1 meter per second

150 meters per second

100 miles per hour

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

wire

the brain

nerve

muscle

10 years

1 month

100 years

1 year

proteins

electrical impulses

hormonal

telegraph

muscle cells

prison cells

glial cells

stem cells

liver cells

stem cells

skin cells

muscle cells

bipolar neurons

pyramidal neurons

Purkinje neurons

multipolar neurons

brains

spinal cord

a nerve

all of the above