skin cells
stem cells
liver cells
muscle cells
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
they do not have a nucleus
brains
a nerve
all of the above
spinal cord
1 meter per second
1 foot per second
150 meters per second
100 miles per hour
1 month
1 year
100 years
10 years
True or False: Damage to your nervous system can cause paralysis.
prison cells
glial cells
muscle
nerve
wire
the brain
bipolar neurons
Purkinje neurons
multipolar neurons
pyramidal neurons
telegraph
proteins
electrical impulses
hormonal