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How is a cactus adapted to excessive water loss?


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Answered 2009-09-13 04:13:00

Leaflessness is a cactus adaptation to handle dry, hot parts of the world where excessive water loss is a constant worry. Instead, a cactus may have needles which have a far smaller surface from which water evaporates. Mighty stems are another cactus adaptation. The stems have big, thick walls on the outside to lose as little water as possible to evaporation. They're thick with fleshy tissue on the inside to store water, minerals, and energizing food from the photosynthetic interaction with sunlight. Ribbing is still another cactus adaptation. The ribs make for a contractable or expandable stem size. The stem sinks in with lower levels of stored water. That decreases the surface area from which precious water evaporates. The stem fills out with greater water levels. Shallow roots are yet another cactus adaptation. Cactus roots are close to ground level to take in rainfall and water that gets into the soil.

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well its the spikes on the cactus


A cactus is adapted to living in the desert because it has no leaves and a small surface area so it reduces the water loss and a thick stem to store water in a drought. A cactus has very long roots to absorb water very quickly and spikes to stop animals from eating it.


which plant leaf is adapted to prevent water loss


the plants growing in deserts have adaptations to prevent water loss for example cactus: 1. has no leaves to prevent water loss through transpiration. 2. stem is modified in such a way that it performs photosynthesis. 3.root system is well developed and grows in deep in search of water.


Cactus have a waxy layer on them to prevent water loss and reduce transpiration



There is excessive loss of isotonic fluid and not 'water loss' in case of cholera. This occurs by way of vomiting and severe diarrhoea.


Excessive body water loss is caused by sickness, sweat, or exhaustion. The body’s energy reserves should be used in increments in order to prevent excessive water loss. If all else fails, drink extra water.


the cactus includes small and spiky leaves that reduce evaporation of water. It also prevents loss of water. The cactus has also a thick and juicy stem that stores water.


Barrel shaped stems without leaves are water reservoir and photosynthesize. Spines are dense, somewhat obscuring the surface of the stem protecting it from heat, water loss and to be eaten by animals.


by dancing here and therIt has shallow roots that are spread out so that it can receive as much water as it can after a rainfall. It has 'thorns' that prevent animals from eating it. It also has a waxy covering to prevent water loss.


to prevent excessive water loss by transpiration


i dont what you meen but a cactus


it slows down the loss of water


so that it could prevent the sunlight from evaporating the excessive water loss from the plant through the stomata and also to prevent excessive water loss.


The word "dehydration" means loss of water, from the Greek root hydro (water).


Excessive transpiration leads to water loss in plants which can lead to withering of the plant..



The leaves of cactus are modified to sharp spine to reduce the area of water loss when sweat. They also have other modifications to reduce the loss of water, because in the deserts, is rare to rain.


Xerophyte are plants that have adapted to be able to survive in hot conditions such as deserts. They have special features that allow them to survive these conditions. For example, a cactus has white hairs on hit to prevent water loss.


A cactus draws nutrients and water through the roots. Water is stored in special cells that swell when filled with water. The skin is covered in a waxy film to prevent loss of water by evaporation.


A cactus that stores water in its stem is called a stem succulent. The stem has tissues that are capable storing large quantities of water. The stem also has a thick waterproof epidermis covered by a waxy cuticle that prevents loss of water due by evaporation. Examples of stem succulents - Cardon Cactus, Organ Pipe Cactus, Saguaro Cactus




the water is stored in the center of a plant a thick waterproof,waxy coating helps stop the water loss



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