Innate immunity: Immunity that is naturally present and is not due to prior sensitization to an antigen from, for example, an infection or vaccination. Since it is not stimulated by specific antigens, innate immunity is generally nonspecific. It is in contrast to acquired immunity. Also called natural immunity.
Hope this helps
During an asthma attack the muscle wall contracts and the lining of the airways becomes swollen and inflamed. These changes cause a narrowing of the airways which is further aggravated by an increase in secretions from the mucus membrane, which may actually block the smaller airways hope this helps
Abstinence is a good idea for teenagers because often very young people
are not prepared for the realities and risks that come with sexual
intercourse. These include pregnancy, sexually transmitted infections
and diseases, and the emotional impact that sex has upon them as
individuals.
b beacuse i have seen this quiston on one of my test before so hope this helps
It is important to chose the type of exercise we want to get involve in carefully; the type of exercise, the exertion requirement and the duration of the exercise should be considered carefully based on one's health status because our body react differently to exertion.
When one has been away from exercise for a long time, it is important that such a person consider the length of time he is been away because, his body system may react adversely if he start doing very strenuous exercise suddenly. If he has been away for a long time, then he has to start the exercise gradually, beginning with minimum exertion and then build it up gradually over a period of time.
