they help carry oxygen to different parts of your body

they do not have a nucleus

they regenerate very quickly

they are very long compared to other cells in the body

muscle cells

stem cells

liver cells

skin cells

Purkinje neurons

multipolar neurons

pyramidal neurons

bipolar neurons

all of the above

spinal cord

brains

a nerve

1 month

10 years

100 years

1 year

telegraph

electrical impulses

proteins

hormonal

prison cells

stem cells

glial cells

muscle cells

1 foot per second

100 miles per hour

1 meter per second

150 meters per second

the brain

muscle

wire

nerve