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

they do not have a nucleus

a nerve

all of the above

brains

spinal cord

muscle

wire

the brain

nerve

electrical impulses

hormonal

telegraph

proteins

muscle cells

stem cells

skin cells

liver cells

stem cells

muscle cells

prison cells

glial cells

150 meters per second

100 miles per hour

1 foot per second

1 meter per second

1 year

1 month

10 years

100 years

pyramidal neurons

Purkinje neurons

bipolar neurons

multipolar neurons