Here is your answer
a) True
EXPLANATION:
Xylem and phloem together are responsible for the transport of water and minerals(through xylem) and food and other products like hormones (through phloem).
Typically, the xylem is on upper side of leaf vein and phloem is on the lower side of leaf vein (it is shown clearly in 1st image)
b)False
EXPLANATION:
Perikaryon is actually the cell body of a neuron, having a nucleus.
HOPE IT IS USEFUL
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Regards, Abhay☺️, Be Brainly✌️