I’m pretty sure they included more than one independent variable.
Answer: Exotic disease
Explanation: Exotic disease is a term used to describe infectious disease which are currently absent in a particular country but present in some other countries in the world. An exotic disease could result either due to the fact that such disease has never surfaced in the country or it has been completely eradicated through through quarantine or any other eradication scheme.
For Instance, pseudorabies is an exotic disease in Denmark because it has been eradicated in the country, while it isn't in Ireland.
Prolonged and constant use of tobacco can weaken the user's immune
system and increase the risk of many diseases.. . Which of the following
diseases can makes the air sac in the lungs less elastic, reducing their ability to absorb oxygen?.
B.emphysema.
<span>Chlamydia, gonorrhea, HPV and genital herpes.</span>
