Answer:
B taxon is a level of the classification system known as taxonomy.
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The Answer is A. The presence of sodium potassium pumps has nothing to do with water moving in and out of cells.
1) Speed = distance / time
s = 60 / 2
s = 30 km/h
In short, Your Answer would be Option B
2) Speed = distance / time
s = 25/4
s = 6.25 km/h
In short, Your Answer would be Option B
[ Direction not needed as it is speed not velocity ]
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