Asked in Uncategorized
What does a cactus inherit sharp spines?
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Asked in Botany or Plant Biology, Cactus Gardening
What are the disadvantages of a cactus having sharp spines instead of leaves?
Asked in Botany or Plant Biology
Which types of plant has sharp spines and lives in the dersert?
Asked in Cactus Gardening
Is there a cactus that shoots its spines at nearby animals?
Why are the leaves of cactus plants modified to sharp spines?
Asked in Deserts, Cactus Gardening
How do the spines on a cactus help it survive?
Spines: Spines help the cactus in several ways. The most obvious use of the spines is for protection against foragers. The cactus basically states "How much pain are you willing to indure to get a drink in this desert?"; Surprisingly, some animals do partake. In some cactus varieties the spines participate in water collection. Water from dew condenses on spines and, in some cactus species, downward-pointing spines help to direct rainwater to the roots of the plant. Spines help to reflect light away from the cactus stem theoretically lowering the stem temperature. Some spines also trap in a layer of air next to the cactus stem preventing loss of water via evaporative cooling.
Asked in Skeletal System
Why does a cactus have spines on its stem?
Shelchav Cactus spines are actually modified leaves. It helps if you think of cactus as a large stem with leaves (spines). One of the main functions of the spines is fairly obvious, which is to protect cacti from predators such as animals and people. Spines will turn away most animals, but there are a few that are not put off by prickly spines. These animals include javelina, pack rats, desert tortoises and even Desert Bighorn sheep. Saguaro (Carnegiea gigantea) A major function of cactus spines serve to provide protection for the cactus from the sun. At first, it is hard to believe that tiny cactus spines offer any real protection from the intense desert sun. But when you consider that a cactus can have thousands of spines and each spine provides a small amount of shade and multiply that by 1,000 - well it becomes easier to believe that spines really do offer some protection from the sun for the skin of the cactus.
Asked in Biology
What structural adaptations would you notice on a cactus?
How are embedded cactus spines removed?