0
A cactus plant began its evolutionary path as a stereotypical herbaceous plant. For example, it had a slender stem, and larger and wider leaves. But its extreme, harsh environment demanded changes for survival. For example, the cactus developed a thick skin to minimize sun damage and water loss. It developed a spreading, shallow, fibrous root system to seek out and capture available soil moisture. It developed thinner leaves to direct water away from evaporation prone leaf surfaces. It took the job of storing internal contents away from the roots, and gave it to the stem. It took the job of regulating the entry and exit of gases away from the leaves, and likewise gave it to the stem. As a result, the cactus evolved into the extreme environment's dominant contender and key player.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agothey evolved back before the earthe was born. they were greenish balls of galactic residue that originated from the meteor belt. they landed on earth after 17 million years
Add your answer:
Earn +20 pts
WHAT IS THE NUTRITION of a cactus?
Cactus, like other plants, uses photosynthesis to get energy.
What type of plants are cam plants?
Cactus
Where do cactus plants store starch?
Cactus plants use their stems for storage. So that's where starches are stored. In fact, stems are where a cactus plant stores everything. Other, non cactus plants may use their roots for storage. But cactus roots are much too fibrous and shallow.
What does a cactus in the desert compete for?
A cactus competes with other plants for water.
What desert animal commonly nests in cactus plants?
The cactus wren
What kind of plants live in the desert?
The most popular plant living in the desert is cactus. There are different kinds of cactus, for example barrel cactus. There are other plants like grasses, shrubs, trees, and wildflowers.
Are cactus animals or plants?
The cactus is a plant that usually thrives in a dry environment.
What plants live in saltwater?
Cactus.
Is a cactus a scavenger?
no because they are plants
What do saguaro cactus plants eat?
you answer for me
Do cactus plants live at the Arctic?
No
Plants grow from leaves?
cactus
