The leaves of green plants are mostly green and flat, and the color of the upper epidermis is darker than that of the lower epidermis. There are many stomata on the leaf epidermis, which are the channels for the plant to lose water. The distribution of stomata on the upper epidermis is less than that of the lower epidermis? Acceptance in 30 minutes

The leaves of green plants are mostly green and flat, and the color of the upper epidermis is darker than that of the lower epidermis. There are many stomata on the leaf epidermis, which are the channels for the plant to lose water. The distribution of stomata on the upper epidermis is less than that of the lower epidermis? Acceptance in 30 minutes

The upper epidermis is darker than the lower epidermis in color, which is conducive to the absorption of light, and the light is lighter, which is conducive to the reflection of light

Nerium indicum is a xerophyte. This paper analyzes how leaf morphology and structure adapt to its function

1) There are few stomata in the upper epidermis and many stomata in the lower epidermis. This feature is suitable for transpiration and respiration. It not only ensures the absorption of carbon dioxide, but also ensures the progress of transpiration, and the water will not be lost too much. 2) there is a layer of cuticle on the outer epidermis, which reduces the evaporation of water from the leaves

Examples are given to illustrate the morphological and structural changes of plants adapting to Xeric Environment

Plants adapt to xerophyte environment: for example, cactus, a certain part of plant vegetative organs, such as stem or leaf or root (a few species have both two parts), has developed parenchyma to store water, and appears thick and juicy in appearance