Just by using current knowledge of our society today, this question explains itself for the answer choice of A. Teens think that they are capable of driving even though they only had "a few drinks". This is also the case with adults, because not all adults are responsible. Hope this helped!
B. ionic bonds, polar means when it is slightly negative on one side and slightly negative on the other
Endosymbiosis refers to the co-existence of living matter where one organism lives within the body or within the cells of another organism.
The correct answers is : <span>They allow the exchange of gases between cells in the leaf and the external environment
The stomata are small openings that can be found on both the upper and the down part of the leaf and they are connected to the plant's vascular system.
These openings enable the plant to get rid of excess water in the form of vapor and to take CO2 from the atmosphere that is essential for the process of photosynthesis. </span>