1 month

10 years

100 years

1 year

150 meters per second

100 miles per hour

1 foot per second

1 meter per second

spinal cord

brains

all of the above

a nerve

glial cells

muscle cells

stem cells

prison cells

Purkinje neurons

bipolar neurons

multipolar neurons

pyramidal neurons

electrical impulses

hormonal

proteins

telegraph

liver cells

stem cells

muscle cells

skin cells

muscle

nerve

the brain

wire

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

they help carry oxygen to different parts of your body