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Does a cactus have a thorn?
No, a cactus does not have a thorn. A cactus has spines.
What are the disadvantages of a cactus having sharp spines instead of leaves?
to protect it self from other animal
Why cactus plant have spines?
they have the spines to protect them from your face
What do you call the sharp point on cactus stems?
The pointy things on a cactus are called spines.
Why does the top of a cactus have more spines than the sides?
Defense of vital body parts is the reason for a cactus having more spines on its top than on its sides. The top is the location of the growth buds, by which the cactus grows upward and outward. Additionally, from these buds appear the cactus' flowers, fruits, and seeds.
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.
Can a cactus shoot its spikes at animals?
There is no cactus capable of shooting its spines.
How have leaves of a cactus adapt to the desert?
Leaves have evolved into spines on the cactus.
Are cactus spines alive?
Yes, cactus spines are living parts of the cactus plant. They owe their existence to growth buds on the plant's surface. From the growth buds also come a cactus plant's flowers.
What structural adaptations would you notice on a cactus?
The structural adaptations you would notice on a cactus are the spines on it. The spines are there so they don't loose water.
What are the quills attached to on a cactus?
The 'spines' of a cactus attach directly to the stem of the plant.
What do all cacti have?
All cactus have spines.
