The nervous system is the most important body system and the heart is the most important muscle
<span>It is true that tobacco can damage the immune system of a person with AIDS. Although this is the case with most people - tobacco negatively affects anyone's immune system, not only those who have AIDS - people who do have AIDS are more likely to be seriously harmed than those who do not. People with AIDS already have a weakened immune system that is unable to fight off any diseases, so if it is damaged even more, they can easily die.</span>
Answer:
The correct answer is d) renal calculi
Explanation:
Renal calculi are the kidney stones that are formed when salts and minerals are joined together and formed a stone in the kidney. They can cause a dull. constant pain at the lower back or along the right costovertebral angle.
The other symptoms are nausea and vomiting, burning sensation during urination, blood in urine, smelly urine, etc. Small stones can be dissolved by medication and consumption of more water but in some cases the stones are so large that operations are necessary to take out the stone from the kidney.
These stones, when passed through urine, can cause severe pain and bloody urine. So the right answer is d. renal calculi.
