150 meters per second

1 foot per second

100 miles per hour

1 meter per second

hormonal

electrical impulses

telegraph

proteins

spinal cord

brains

a nerve

all of the above

pyramidal neurons

multipolar neurons

Purkinje neurons

bipolar neurons

liver cells

muscle cells

skin cells

stem cells

they help carry oxygen to different parts of your body

they regenerate very quickly

they do not have a nucleus

they are very long compared to other cells in the body

prison cells

glial cells

stem cells

muscle cells

nerve

wire

the brain

muscle

100 years

10 years

1 month

1 year