1 foot per second

1 meter per second

100 miles per hour

150 meters per second

a nerve

spinal cord

brains

all of the above

muscle cells

liver cells

skin cells

stem cells

1 month

10 years

100 years

1 year

proteins

telegraph

electrical impulses

hormonal

muscle

nerve

the brain

wire

stem cells

prison cells

muscle cells

glial cells

pyramidal neurons

bipolar neurons

Purkinje neurons

multipolar neurons

they help carry oxygen to different parts of your body

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body