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The cuticle is thicker at the top because it causes the top leaves to absorb more water. More than likely a thicker top is seen in hot and dry climates.
The cuticle in a leaf is the waxy covering on top and bottom of the leaf. It is used to conserve water.
retention of water
The cuticle is a useful adaptation in plants but not in algae because: in order for plants to live on land, they need a cuticle to prevent water loss during dry climates. Algae live in the water, therefore they don't need a cuticle to survive. They use their adaptations to absorb the water and nutrients around their watery environments. Source: My straight "A" brain
They get wet (and get cooked if it is hot)
hot water opens the hairs cuticle to let in the shampoo/conditoner to clean it and make sure the conditoner gets in good, then rinsing with cool water closes the cutice back up to make your hair look smooth again
The cuticle is thick and waxy. Thanks to the Cuticle, it helps reduce the rate of water loss, which also benefits in dry environments, and hot seasons such as in deserts. Water is very little, so plants can survive longer witout water.
Cuticle being impervious to water prevents water loss
when water is too hot then it evaporates
Cuticle
The cuticle is thicker at the top because it causes the top leaves to absorb more water. More than likely a thicker top is seen in hot and dry climates.
hydrophytes do not have cuticle on stem or leave because they do not have any problem in obtaining water and cuticle is a water covering layer. Hence why they excrete out extra water by transpiration.
cold water is much heavier than hot water . the water becomes warm
Since cuticle is almost impervious to water, the plants living around water do not require cuticle because the water is absorbed through the free surface of cell wall in these plants.
that happens because cold water is heavier than hot water.
A leafs cuticle is a waxy covering used to retain water
The water will be really hot.