1 year

10 years

100 years

1 month

liver cells

stem cells

skin cells

muscle cells

1 foot per second

1 meter per second

100 miles per hour

150 meters per second

spinal cord

brains

all of the above

a nerve

bipolar neurons

Purkinje neurons

pyramidal neurons

multipolar neurons

glial cells

stem cells

muscle cells

prison cells

electrical impulses

telegraph

proteins

hormonal

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

wire

nerve

muscle

the brain