liver cells

stem cells

muscle cells

skin cells

1 foot per second

150 meters per second

1 meter per second

100 miles per hour

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they regenerate very quickly

they do not have a nucleus

Purkinje neurons

multipolar neurons

pyramidal neurons

bipolar neurons

100 years

1 year

10 years

1 month

a nerve

all of the above

brains

spinal cord

glial cells

stem cells

prison cells

muscle cells

telegraph

electrical impulses

hormonal

proteins

nerve

muscle

the brain

wire