150 meters per second

1 foot per second

100 miles per hour

1 meter per second

wire

nerve

muscle

the brain

muscle cells

liver cells

skin cells

stem cells

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons

spinal cord

all of the above

brains

a nerve

1 year

10 years

100 years

1 month

telegraph

proteins

electrical impulses

hormonal

they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

muscle cells

prison cells

glial cells

stem cells