10 years

100 years

1 year

1 month

100 miles per hour

1 foot per second

150 meters per second

1 meter per second

spinal cord

brains

a nerve

all of the above

they are very long compared to other cells in the body

they regenerate very quickly

they help carry oxygen to different parts of your body

they do not have a nucleus

liver cells

muscle cells

stem cells

skin cells

Purkinje neurons

pyramidal neurons

bipolar neurons

multipolar neurons

proteins

electrical impulses

hormonal

telegraph

muscle cells

stem cells

glial cells

prison cells

nerve

wire

muscle

the brain