Answer: A. virus strains multiplied in cell cultures
A snow crystal appears when water vapor in the air converts directly into ice without first becoming liquid water. ... The exact shape of the final snow crystal is determined by the precise path it took through the clouds. But the six arms all took the same path, and so each experienced the same changes at the same times.
the force of bestop will fling you forward and the water will go to one side of the bottle and hit the side of the bottle and curved back up and come out because the force of
Demonstrative pronoun is the answer.