1 foot per second

150 meters per second

1 meter per second

100 miles per hour

brains

a nerve

spinal cord

all of the above

muscle cells

liver cells

skin cells

stem cells

stem cells

muscle cells

glial cells

prison cells

1 year

10 years

1 month

100 years

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

wire

the brain

muscle

nerve

Purkinje neurons

multipolar neurons

pyramidal neurons

bipolar neurons

telegraph

hormonal

electrical impulses

proteins