Answer:
Immune system disorders cause abnormally low activity or over activity of the immune system. In cases of immune system overactivity, the body attacks and damages its own tissues (autoimmune diseases). Immune deficiency diseases decrease the body's ability to fight invaders, causing vulnerability to infections.
Answer:
In the simplest case it involves mixing two materials together. The most common examples of dissolving involve a solid and a liquid, usually water. When a solid dissolves the solid (solute) and the liquid (solvent) form a very close intimate mixture called a solution.
Explanation:
The answer is A. Have a great day.
diamond=carbon and its comp.
water=oxygen and its comp.
carbohydrates=carbon and its comp.
ozone=oxygen and its comp.
ethane=carbon and its comp.
Hope my answer helps! :)
