Answer:
Oxygen.
Explanation:
Yeah no thats' all there is to it...
The answer is B. We don't always have exact proof but our observations tell us more than we already know.
the lungs They are compounds that block the growth and reproduction of bacteria. Both are caused by bacteria. However, the bacteria that cause tuberculosis break down tissue, whereas the bacteria that cause diphtheria release toxins.
Hope this helps have a good day
Bulbs are the sugar source and roots / tubers are the sugar sink.
