Annual growth rings arformein woody stems principally through thactivities of the
A) pericycle.
B) pith.
C) vascular cambium.
D) mesophyll.
E) endodermis.
Correct Answer:
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Q51: Thoxygen needeby plants is ultimately derivefrom
A)aerobic respiration.
B)photosynthesis.
C)anaerobic
Q52: Lateral meristems
A)are groups of dividing cells.
B)are responsible
Q53: Thnodules founon throots of plants callelegumes
A)are abnormal
Q54: Which of thfollowing elements requireby plants does
Q55: Bark is
A)a mixture of primary xylem and
Q58: Root hairs arthextensions of the
A)apical meristem.
B)epidermal cells.
C)pericycle.
D)vascular
Q59: In an annual trering, thwoowith largdiameter, thin-wallecells
Q60: Plants in general requirhow many essential elements,
Q61: Thsink region in thpressurflow explanation of phloetransport
Q73: Mycorrhizae
A) increase plant growth.
B) are symbionts.
C) allow
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