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Biology HL (FE2016)

Plant Biology

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Biology HL (FE2016)

Available time 20 Minute(s)

Which substance strengthens the xylem tube to withstand the pressure?

What does the plant hormone called Auxin regulate in plant?

Plant Biology

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Available time 20 Minute(s)

01. Question

Level Easy

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Which substance strengthens the xylem tube to withstand the pressure?

Sieve plates

Lignin

Leptin

Companion cells

End Test