Answer: Emphysema
Explanation:
Emphysema can be defined as a type of COPD which involves the damage to the air sacs In the lungs.
As a result of this the body does not gets enough oxygen which is required by the body.
In this disease, there is an extreme dilation and destruction of pulmonary alveoli. This aids in poor exchange of gases. It can be mild, severe or chronic.
It is caused due to smoking and can be prevented by getting worse by quitting smoking.
The answer is body's line of defense. The first line of defense which includes physical as well as chemical barriers would defend the body from infection. It would include the tears, cilia, stomach acid,urine, white blood cells,mucus and the skin. The skin is the largest organ and would act as a barrier from pathogens. If first line of defense won't work the second line will then be activated.
A. works with bones to transfer vital elements through body
The joining of an egg and a sperm
Not only do you get stds you get STI's aswell, and you can get HIV
