Leaves in Cycas show
A) Hydrophobic characters
B) Xerophytic characters
C) Mesophytic characters
D) Lithophytic characters
Answers
Answer:
Concept:
Xerophytes are plants that have adaptations to reduce water loss or to conserve water.
Find:
Leaves in Cycas show
A) Hydrophobic characters
B) Xerophytic characters
C) Mesophytic characters
D) Lithophytic characters
Given:
Leaves in Cycas show
A) Hydrophobic characters
B) Xerophytic characters
C) Mesophytic characters
D) Lithophytic characters
Explanation:
Xerophytes are plants that have adaptations to reduce water loss or to conserve water.
They occupy habitats in which there is some kind of water stress. Examples of such water stress habitats include:
• Desert (high temp, low precipitation)
• High Altitude & High Latitude (low precipitation or water locked up as snow or ice)
• Rapid drainage (sand dunes)
CHARACTERISTICS OF XEROPHYTES
A thick waxy cuticle: water can be lost by transpiration through the cuticle, however a thick and waxy cuticle helps minimise water loss
Sunken Stomata: Their stomata located in pits, which reduce air movement, producing a
Reduced stomata: Reducing the number of stomata in the leaves reduce the amount of water loss by transpiration but it does reduce the amount of gas exchange can take place as there are less of them.
A) Hydrophobic characters is not correct answer. because Xerophytic characters leaves in Cycas show
B) Xerophytic characters is correct answer
C) Mesophytic characters is not correct answer. because Xerophytic characters leaves in Cycas show
D) Lithophytic characters is not correct answer. because Xerophytic characters leaves in Cycas show
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