1 meter per second

1 foot per second

100 miles per hour

150 meters per second

they do not have a nucleus

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

1 year

1 month

100 years

10 years

prison cells

muscle cells

glial cells

stem cells

stem cells

muscle cells

liver cells

skin cells

Purkinje neurons

bipolar neurons

multipolar neurons

pyramidal neurons

a nerve

all of the above

spinal cord

brains

telegraph

hormonal

proteins

electrical impulses

wire

muscle

nerve

the brain