stem cells

liver cells

skin cells

muscle cells

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

they help carry oxygen to different parts of your body

they regenerate very quickly

they are very long compared to other cells in the body

they do not have a nucleus

1 year

100 years

10 years

1 month

all of the above

spinal cord

a nerve

brains

glial cells

prison cells

muscle cells

stem cells

telegraph

electrical impulses

hormonal

proteins

the brain

nerve

muscle

wire

100 miles per hour

1 meter per second

1 foot per second

150 meters per second