1 month

10 years

1 year

100 years

all of the above

spinal cord

a nerve

brains

electrical impulses

telegraph

proteins

hormonal

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

muscle cells

skin cells

stem cells

liver cells

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons

100 miles per hour

1 meter per second

1 foot per second

150 meters per second

stem cells

prison cells

muscle cells

glial cells

nerve

muscle

wire

the brain