Question

Which of the following is not an example of adaptation in Xerophyte?
A.CAM pathway
B.Thick cuticle
C.Absence of stomata
D.Leaves reduces to spine

Answer 1

Hint:
The xerophytes adaptation increases water intake and limits water loss and also stores water efficiently. The water intake adaptations include deep or widespread roots, and high salt content to increase osmosis.
The xerophytic plants have thick cuticles, lost or finely divided leaves, reduced stomata, and CAM photosynthesis.

Complete step by step answer:The xerophytes are the species of plants that have the special characteristics to adapt to the environment even with a little amount of water.
The xerophytes plants have a thick waxy cuticle on the stem and on the leaves.
This waxy cuticle helps to reduce water evaporation.
In the xerophytic plants, the sunken stomata are present.
These stomata open during the night to prevent water loss.
To adapt to this environment the xerophytic plant leaves reduce into spines, which reduces the surface area of the leaf and also reduces the amount of transpiration.
The xerophytic plant makes its food with the help of the CAM pathway.
Therefore, the correct answer is option C.

Additional information:
Xerophytes are the plant that is adapted to live in a dry or physiologically dry habitat by means of mechanisms to prevent water loss or to store available water.
The succulents such as cacti and the agaves have thick, fleshy stems or leaves.
The crassulacean acid metabolism is also known as CAM photosynthesis is a carbon fixation pathway that evolved in some of the plants as an adaptation to arid conditions.
In a plant using full CAM, the stomata in the leaves remain shut during the day to reduce the evapotranspiration but open at night to collect carbon dioxide

Note:Certain xerophytes have the waxy covering over their stomata, therefore curbing water loss.
Whereas others contain very few stomata that only open at night when it's a cooler environment.
Each of these adaptations limits water loss and also allows the plant to survive in drier environments.