150 meters per second

100 miles per hour

1 foot per second

1 meter per second

1 year

10 years

100 years

1 month

proteins

telegraph

electrical impulses

hormonal

spinal cord

brains

all of the above

a nerve

stem cells

glial cells

prison cells

muscle cells

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

they regenerate very quickly

skin cells

muscle cells

stem cells

liver cells

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons

wire

muscle

the brain

nerve