BIGYAN KO BRAINLYES SA MAKA ANSWER NG MAAYOS
the stem must be________and healthy A.small
B.tall
C.thick
D.thin
the stem must be________and healthy A.small
B.tall
C.thick
D.thin
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Answer:
C.Thick
Explanation:
The thickening of the stem that occurs in secondary growth is due to the formation of secondary phloem and secondary xylem by the vascular cambium, plus the action of cork cambium, which forms the tough outermost layer of the stem. The cells of the secondary xylem contain lignin, which provides hardiness and strength.