_____4. Which is not a healthy habit for the body?
A.getting 7-8 hours of sleep.
B.eating eggs in moderation.
C.steching before exercising is good for the body.
D.brisk walking is as effective as running with less risk of hurting your joints
_____5.how does the nervous system in the body systemn respond?
A.it transports signals/massages to and from the brain to make a certain
body system respond.
B.it is only the nerve cell that control all the body systems because it
recieves the signals from the environment.
C.it transports the signals recieve by the nerve cells to make a ceratin body
system respond to the environment.
D.the spinal cord is connected to all the systems in the body as it is the
passage way of the signal from environment.