When the soil is dry and the temperature is very hot, how can a plant reduce its water loss? explain your answer?
Answers
Less leaf surface area results in reduced water loss through the epidermis. Small leaves have fewer stomata than larger leaves, and that adaptation also reduces water loss. Some dry-land plants have stomata only on the bottom epidermis, which further reducing water loss, and some have several layers of epidermal cells.
It's hot in the desert. It's awful dry too. Succulent plants such as cacti, aloes, and agaves, beat the dry heat by storing plenty of water in their roots, stems, or leaves. ... For starters, when it does rain, succulents absorb a lot of water quickly.
However, in plants that grow in very hot or very cold conditions, the epidermis may be several layers thick to protect against excessive water loss from transpiration. A waxy layer known as the cuticle covers the leaves of all plant species. The cuticle reduces the rate of water loss from the leaf surface.
It closes it's outward flow of water (in vapor form) by closing it's 'doors' aka stomata- a natural defense mechanism as a last-ditch effort of survival!