Biology HL
Plant Biology
Questions Attempted 0/2
Biology HL
Available time 20 Minute(s)
01

Which substance strengthens the xylem tube to withstand the pressure?

02

What does the plant hormone called Auxin regulate in plant?

Plant Biology
:
Available time 20 Minute(s)
01. Question
Level Easy
Maximum Mark 1
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Which substance strengthens the xylem tube to withstand the pressure?

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