100 miles per hour

1 meter per second

1 foot per second

150 meters per second

prison cells

stem cells

glial cells

muscle cells

telegraph

proteins

electrical impulses

hormonal

all of the above

brains

spinal cord

a nerve

1 month

1 year

100 years

10 years

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

they do not have a nucleus

they regenerate very quickly

muscle cells

liver cells

skin cells

stem cells

nerve

the brain

muscle

wire

bipolar neurons

multipolar neurons

Purkinje neurons

pyramidal neurons