150 meters per second

1 meter per second

1 foot per second

100 miles per hour

spinal cord

a nerve

all of the above

brains

telegraph

proteins

hormonal

electrical impulses

10 years

1 year

1 month

100 years

bipolar neurons

Purkinje neurons

multipolar neurons

pyramidal neurons

they do not have a nucleus

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

muscle

wire

the brain

nerve

skin cells

stem cells

liver cells

muscle cells

glial cells

prison cells

stem cells

muscle cells