Answer:
Winds
Explanation:
Winds only act on oceans surfaces. The winds move the upper layers of ocean waters due to drag as they blow in the atmosphere. They are the reason for waves. However, the effects of winds cannot be felt in deep oceans where much of the movement is dependent on variable densities of ocean currents (due to differences in temperatures and salinity levels).
Answer:
It is important to do this to test your theory multiple times, so that you can see what effect the drop has on it when doing this multiple times. The numbers were slightly different because the recordings will not always be the same.
Explanation:
Answer:
Following electrophoresis, you can cut DNA bands out of the agarose gel and purify the DNA samples. This is a commonly used technique for molecular cloning, such as PCR - or restriction enzyme -based cloning.
By the text you can’t tell that he is very unhappy so I would go for A.