The best explanation I can think of is that the bugs are adapting and are building up immunity to hand sanitizer which is common in almost all species of life.
That is true, you limit on what you can do with them.
The earth has to be really really old but you. An search that up
The correct answer is A.
Secondary growth in plants allows many woody and non woody plants to grow tall and strong. The growth basically occurs in the roots and the stems and it is controlled by lateral meristem. Examples of non woody plants that undergo secondary growth include: carrot, potato, tuber, etc.<span />
