1. Whether or not height affects running speed.
2. She and her friend Melissa exercised equal amounts, but Melissa still ran faster, so Sally wanted to know why.
3. speed
4. quantitative
5. males vs female data, so gender, and how much each test subject exercises, so their athleticism
6. Gender, distance ran
7. no
8. 1 trial as a class, but independent data for each student, so I would say there were as many trials as students in the class
<span>If a compound could interfere with bacterial cell wall synthesis, it would destroy the cell. The bacteria would not survive failure of the cell wall. This compound would be useful in the treatment of bacterial infection as it would destroy the infection on a cellular level.</span>
Hey friends
The answer to the question would be A
Hope i helped
~Katie