prison cells

muscle cells

stem cells

glial cells

they help carry oxygen to different parts of your body

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

hormonal

telegraph

electrical impulses

proteins

stem cells

liver cells

muscle cells

skin cells

1 month

1 year

100 years

10 years

all of the above

a nerve

spinal cord

brains

1 foot per second

100 miles per hour

1 meter per second

150 meters per second

nerve

muscle

wire

the brain

pyramidal neurons

multipolar neurons

Purkinje neurons

bipolar neurons