What is an advantage of the leaves being reduced to spines?
The leaves of ‘cactus’ are reduced to ‘spines’ to prevent the loss of water by transpiration. EXPLANATION: Leaves lose water by the process of transpiration but cactus grows in deserts and cannot afford to lose water.
What advantage do plants with spines have?
Spines help cacti to thrive in desert environments by providing multiple functions. They protect the plant from predators, provide shade, help regulate temperature, reduce water loss and even help the plant to spread and reproduce.
What are the advantages of leaves?
These leaf particles add valuable nutrients right back into the soil, resulting in a stronger, healthier lawn. Insulation. A thin layer of mulched leaves can help protect your lawn from harsh winter conditions, ensuring a healthy lawn next spring.
What is the advantage of leaves reduced to spines in some Xerophytes?
Spines lose less water than leaves so are very efficient in a hot climate. Spines also prevent animals from eating the plant. Waxy skin – some leaves have a thick, waxy skin on their surface. This reduces water loss by transpiration .
Why are the leaves reduced to spines in some plants?
The leaves of the desert plants are reduced to spines to help to prevent the loss of water by transpiration. Transpiration is the process by which plants give out excess water in the form of vapour from their aerial parts.
Which of the following plant has spines?
cactus. … plants by the presence of spines in areoles. Areoles are universal in the cactus family (at least in the juvenile phase) and have not so far been found in any other plant family.
What is the function of leaf spines?
In certain plants entire or the parts of the leaves are modified into sharp and pointed structure called as leaf spines. They are exogenous in origin. It can act as defensive structure since it can protect the plants against grazing animals. It also reduces transpiration.
What are 2 Functions of leaves?
The two main functions performed by the leaf are photosynthesis and transpiration. Photosynthesis is the process by which green plants make their food from carbon dioxide and water in the presence of sunlight.
What are the advantages of leaves modified into?
Answer: Most species of cacti have lost true leaves, retaining only spines, which are highly modified leaves. As well as defending against herbivores, spines help prevent water loss by reducing air flow close to the cactus and providing some shade. In the absence of leaves, enlarged stems carry out photosynthesis.
What is the normal route of water loss in terrestrial plants?
Evapotranspiration is the normal route of water loss in terrestrial plants.