no
All cactus have spines.
The spines are an effective deterrent to herbivores, but also protect the plant stem. The spines increase the surface area available to collect moisture, an additionally help reflect the sun away from the stem and lower the stem temperature.
Yes, both the spines of cacti and the traps of the Venus fly trap are modified leaves. The spines on cacti help reduce water loss and protect the plant from herbivores, while the traps of the Venus fly trap are specialized for capturing and digesting insects to supplement its nutrient intake.
No, a barrel cactus and a saguaro are two different species of cacti. Barrel cacti are smaller, rounder cacti with ribs and spines all around, while saguaros are taller, columnar cacti with arms that grow as they age. Both are native to the deserts of the Americas, but they have distinct characteristics.
Cacti have spines that evolved from leaves.
All cactus have spines.
cacti
An average number of spines on a cacti may vary from the species of the cacti. A desert cactus can grow up to 2000 spines without a problem. However, a normal house cactus can only grow up to 800-1000 spines.
To discourage animals from eating them.
Cacti live in the deserts of the Americas and many have sharp spines. In Africa there are other plants, euphorbias for example, that resemble cacti but have thorns rather than spines.
A natural growth of spines in the body.
No not true. Spines on plants are sharp needle like that protect the plants from any harm. I think cacti have spines
Cacti have spines to protect themselves form animals who want the water stores in the plant.
Spines have replaced leaves on cacti.
The spines are an effective deterrent to herbivores, but also protect the plant stem. The spines increase the surface area available to collect moisture, an additionally help reflect the sun away from the stem and lower the stem temperature.
Yes, both the spines of cacti and the traps of the Venus fly trap are modified leaves. The spines on cacti help reduce water loss and protect the plant from herbivores, while the traps of the Venus fly trap are specialized for capturing and digesting insects to supplement its nutrient intake.
They have spines for a few reasons. The main two reasons are: 1- Most to all cacti live in hot sunny deserts where they receive a lot of sun. However, the skin of most cacti are sensitive and will get "sunburned" so the spines, believe it or not, give a lot of shade for the cactus. 2-The spines are used for defence against animals,insects,reptiles, etc. They have to defend their moisture inside them from animals who try to drink and eat the cactuses water.