a nerve
all of the above
brains
spinal cord
telegraph
hormonal
proteins
electrical impulses
True or False: Damage to your nervous system can cause paralysis.
100 miles per hour
1 foot per second
150 meters per second
1 meter per second
wire
muscle
nerve
the brain
1 year
100 years
1 month
10 years
skin cells
muscle cells
liver cells
stem cells
multipolar neurons
Purkinje neurons
bipolar neurons
pyramidal neurons
glial cells
prison 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