they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

they help carry oxygen to different parts of your body

prison cells

stem cells

muscle cells

glial cells

pyramidal neurons

bipolar neurons

multipolar neurons

Purkinje neurons

a nerve

all of the above

brains

spinal cord

100 miles per hour

1 foot per second

1 meter per second

150 meters per second

skin cells

liver cells

muscle cells

stem cells

hormonal

telegraph

electrical impulses

proteins

the brain

nerve

wire

muscle

100 years

1 year

1 month

10 years