all of the above

brains

a nerve

spinal cord

1 meter per second

150 meters per second

1 foot per second

100 miles per hour

proteins

electrical impulses

telegraph

hormonal

liver cells

skin cells

muscle cells

stem cells

10 years

1 month

100 years

1 year

prison cells

muscle cells

stem cells

glial cells

Purkinje neurons

bipolar neurons

pyramidal neurons

multipolar neurons

they do not have a nucleus

they are very long compared to other cells in the body

they help carry oxygen to different parts of your body

they regenerate very quickly

the brain

muscle

wire

nerve