1 month

10 years

100 years

1 year

1 meter per second

1 foot per second

100 miles per hour

150 meters per second

all of the above

a nerve

spinal cord

brains

stem cells

muscle cells

liver cells

skin cells

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

they regenerate very quickly

prison cells

glial cells

muscle cells

stem cells

electrical impulses

proteins

telegraph

hormonal

muscle

wire

nerve

the brain

multipolar neurons

Purkinje neurons

bipolar neurons

pyramidal neurons