1 meter per second

1 foot per second

150 meters per second

100 miles per hour

wire

muscle

the brain

nerve

a nerve

brains

spinal cord

all of the above

1 year

100 years

10 years

1 month

bipolar neurons

pyramidal neurons

Purkinje neurons

multipolar neurons

stem cells

glial cells

muscle cells

prison cells

stem cells

liver cells

skin cells

muscle cells

proteins

telegraph

electrical impulses

hormonal

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly