BOTANY
PLANT ANATOMY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It helps the cactus survive a flood.
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It keeps the cactus alive in low sunlight.
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It keeps the cactus from being eaten by insects.
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It helps the cactus live a long time between rainstorms.
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Detailed explanation-1: -Fleshy and thick stems to store water and perform photosynthesis, waxy coating on the stem to retain water.
Detailed explanation-2: -A prickly pear cactus has thick stems that hold water. How does a thick stem MOST likely help a prickly pear cactus? It helps the cactus survive a flood.
Detailed explanation-3: -Cactus is a desert plant that has spines (modified leaves) to help reduce water loss and a thick fleshy stem to store water. These modifications help them to withstand the extremely dry conditions in deserts.
Detailed explanation-4: -Sharp spines are modified leaves that protect cactus from grazing and reduce transpiration. The cactus’ spines are modified leaves that deter animals from eating the plant. The prickly pear has large spines as well as smaller spines, called glochids, that reflect sun from its pads.
Detailed explanation-5: -A cactus is able to survive in the desert due to the following features: (i) It has long roots that go deep inside the soil for absorbing water. (ii) Its leaves are in the form of spines to prevent water loss through transpiration. (iii) Its stem is covered with a thick waxy layer to retain water.