1 meter per second

1 foot per second

150 meters per second

100 miles per hour

muscle

the brain

wire

nerve

proteins

telegraph

hormonal

electrical impulses

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

prison cells

glial cells

stem cells

muscle cells

1 month

1 year

100 years

10 years

all of the above

spinal cord

a nerve

brains

Purkinje neurons

pyramidal neurons

bipolar neurons

multipolar neurons

skin cells

muscle cells

stem cells

liver cells