the answer is A for Plato
what is the affect on the excretory system
An oyster's defense mechanism is its shell because it protects the soft bodied animal from predators. Another defense mechanism is its muscles to close the shells together when it feels threatened. It immune system protects it from invading disease organisms.
It could stop your from ovulating
Because your life is important
A very good answer is given in the Related link below.
Swine flu does not have an affect on the circulatory system. It does affect the Cardiovascular system and puts it under great stress, that's why people with heart disease are more susceptible to it.
Stress and tension affect your body in bigger ways than people think. It can change how you look. If you are stressed and tense all the time, you can get wrinkles faster and can affect your posture. In the long run, it can shorten your life span.
Natural immunity, such as skin. For example, the skin is a physical barrier that keeps out pathogens (disease causing factors).
Cold sores don't affect your health. They can be embarassing or case some emotional stress but that is about it. It's your heath that can affect the cold sore virus. When you're immune system is lowered by stress or illness or if you have been out side in very hot or very cold temperatures for long periods of time, then you could get a cold sore.