13. The following are adaptations of desert plants except: O presence of interxylary cork rings in the cortex O photosynthetic stem O abundance of nonfunctional stomata O epidermis is multiseriate and...

Instructions: MULTIPLE CHOICE

Only choose the correct answer from questions 13 to 18 and no need for an explanation.

Extracted text: 13. The following are adaptations of desert plants except: O presence of interxylary cork rings in the cortex O photosynthetic stem O abundance of nonfunctional stomata O epidermis is multiseriate and covered by a thick cuticle 14. The slow closure and sleep movements in plants are due to special cells in the leaves and are influenced by: * O photosynthesis O water distribution turgor pressure the closing of the stomata 15. Which is not a characteristic of the xerophyte leaf: with large spongy mesophyll thick walled epidermis and hypodermis with sunken stomata with abundant trichomes


Extracted text: 16. Which is not a characteristic of the hydrophyte leaf: * reduced cuticle abundance of stomata large air spaces in the mesophyll layer with thin walled epidermis 17. Very fine vascular bundles that run perpendicular to parallel veins in monocots fibrovascular bundle commissural bundle leaf trace fiber bundle O Other: 18. Which of the ff. is not a characteristic of a xeromorphic habitat? * water is frequently scarce O the soil is rich in organic materials O temperature varies from extreme hot to extreme cold O soil is rich in minerals