They are all made to do a different and specialized job
Answer:
Pressure decreases with increasing altitude. The pressure at any level in the atmosphere may be interpreted as the total weight of the air above a unit area at any elevation. At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels.
Explanation:
The movement in phloem is bidirectional, whereas, in xylem cells, it is unidirectional (upward).
Answer:
this is just evolution like the birds on the Galapagos islands also I don't see the question
Answer:
A - Only a Boy Can get a Y Chromosome
Explanation:
MARK AS BRAINLIST