It is the middle of the winter and like everyone else you have caught a cold, your body relies on your ? to help boost your immune system. (1 point)
• plasma
• red blood cells
• white blood cells
• platelets
white blood cells
During the exchange of air in your lungs, your body seeks to keep oxygen and release ? which will then exit.
your body. (1 point)
• microorganisms
• carbon dioxide
• plasma
• mucus
carbon dioxide
It is important that you maintain a healthy weight both for your overall health and so that your respiratory system can
(1 point)
• deliver oxygen more adequately.
• pump blood more forcefully from the heart.
• keep capillaries constricted.
• allow for smaller amounts of air to enter your lungs.
deliver oxygen more adequately.
If you touch a pot that just came off the stove and it is hot, your body sends ? to the brain so that you move your hand. (1 point)
• neurons
• impulses
• dendrites
• synapse
impulses
When you are walking, you rely on this part of your brain to keep you balanced and your muscles moving. (1 point)
• cerebrum
• cerebellum
• brain stem
• frontal lobe
cerebellum
After neglecting to look before diving into the pond, your friend hits his head on a rock and disrupts his ? causing him to be paralyzed from his waist down. (1 point)
• cardiovascular system
• circulatory system
• nervous system
• endocrine system