1 year

100 years

10 years

1 month

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

they regenerate very quickly

the brain

wire

muscle

nerve

muscle cells

stem cells

glial cells

prison cells

multipolar neurons

pyramidal neurons

Purkinje neurons

bipolar neurons

hormonal

electrical impulses

proteins

telegraph

1 foot per second

150 meters per second

1 meter per second

100 miles per hour

stem cells

liver cells

muscle cells

skin cells

a nerve

spinal cord

brains

all of the above