1 meter per second

1 foot per second

100 miles per hour

150 meters per second

a nerve

brains

spinal cord

all of the above

telegraph

proteins

hormonal

electrical impulses

stem cells

skin cells

muscle cells

liver cells

they regenerate very quickly

they do not have a nucleus

they help carry oxygen to different parts of your body

they are very long compared to other cells in the body

100 years

1 year

10 years

1 month

the brain

nerve

muscle

wire

stem cells

muscle cells

glial cells

prison cells

Purkinje neurons

pyramidal neurons

multipolar neurons

bipolar neurons