1 foot per second

1 meter per second

150 meters per second

100 miles per hour

skin cells

muscle cells

liver cells

stem cells

wire

nerve

the brain

muscle

pyramidal neurons

multipolar neurons

bipolar neurons

Purkinje neurons

all of the above

brains

spinal cord

a nerve

they regenerate very quickly

they help carry oxygen to different parts of your body

they do not have a nucleus

they are very long compared to other cells in the body

muscle cells

prison cells

stem cells

glial cells

100 years

1 year

10 years

1 month

electrical impulses

proteins

telegraph

hormonal