a nerve

brains

spinal cord

all of the above

they do not have a nucleus

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

stem cells

muscle cells

glial cells

prison cells

1 foot per second

1 meter per second

150 meters per second

100 miles per hour

electrical impulses

proteins

telegraph

hormonal

1 month

100 years

1 year

10 years

muscle cells

stem cells

liver cells

skin cells

nerve

the brain

muscle

wire

bipolar neurons

Purkinje neurons

multipolar neurons

pyramidal neurons