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BiologyBiology
16 January, 07:35

3. Gases pass in and out of a leaf through the

a) stomata

o c) xylem

b) phloem

d) cuticle

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Answers (1)
  1. 16 January, 09:00
    0
    a) stomata

    Explanation:

    The stomata are little pores / doorways / openings that have the express purpose of allowing gases in and out. Without this, plants would not be able to fix carbon, which is essential in respiration.

    Why not c or b: The xylem and phloem channel water through the plant, not gases.

    Why not d: The cuticle is the waxy outer layer of the leaf meant to protect it, not allow gases through.
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