Cacti occasionally suffer from the pressures of drought and other animals. Birds and mammals try to get the water from the cacti so THEY can survive. This is why cacti have thorns.
A cactus makes food through the process of photosynthesis, like any other plant. The difference between a cactus making food from another plant is that cactus have their leaves reduced to spines, therefore, their stem contains chlorophyll and photosynthesis takes place through the stem.
Cacti do not have petals but cactus flowers do.
it is their evolutionary defense against attackers
Enlarged stems carry out photosynthesis and store water. Unlike many other succulents, the stem is the only part of a true cactus where this takes place. Much like many other plants that have waxy coatings on their leaves, Cacti often have a waxy coating on their stems to prevent water loss. This works by preventing water from spreading on the surface and allowing water to trickle down the stem to be absorbed by the roots and used for photosynthesis. Cacti have a thick, hard-walled, succulent stem - when it rains, water is stored in the stem. The stems are photosynthetic, green, and fleshy. The inside of the stem is either spongy or hollow (depending on the cactus). A thick, waxy coating keeps the water inside the cactus from evaporating.
The adaptations of the cactus includes small and spiky leaves that reduce evaporation of water. It also prevents loss of water. The cactus has also a thick and juicy stem that stores water. It carries out photosynthesis like any other normal green plant.
Waxy leaves, long roots, have needles
Cactuses have many adaptions to survive in dry, hot regions. Such as:
- Being greyish/silver in color: To reflect heat of the sun and reduce water loss
- A swollen stem: To store water
- Rolled up leaves (only in certain cacti) to reduce surface area that is exposed to the sun, therefore preventing water loss
- Covered in thorns: Helps protect the plant from animals trying to eat it
Leaflessness is a cactus adaptation to handle dry, hot parts of the world where excessive water loss is a constant worry. Instead, a cactus may have needles which have a far smaller surface from which water evaporates. Mighty stems are another cactus adaptation. The stems have big, thick walls on the outside to lose as little water as possible to evaporation. They're thick with fleshy tissue on the inside to store water, minerals, and energizing food from the photosynthetic interaction with sunlight. Ribbing is still another cactus adaptation. The ribs make for a contractable or expandable stem size. The stem sinks in with lower levels of stored water. That decreases the surface area from which precious water evaporates. The stem fills out with greater water levels. Shallow roots are yet another cactus adaptation. Cactus roots are close to ground level to take in rainfall and water that gets into the soil.
One reason why it's unusual for a desert cactus to grow in a coastal forest is the vigorous competition to which the cactus is unused in its own native environment. In the desert, the cactus is the main vegetative form. It therefore isn't used to sharing quarters or precious moisture with other vegetative forms. In fact, it's more used to sharing relationships with wildlife, such as the birds and rodents that eat and spread its seeds.
Another reason is the lower heat and light levels and the higher humidity and moisture levels. A desert cactus particularly doesn't like cold or damp. The two combine to blacken, rot, and kill cactus tissues.
On the other hand, a jungle cactus may not be so out of place. It's used to the humid heat, filtered light, and boisterous vegetative competition of the rain forest. So it's main objection to coastal forest living is the coolerdip in temperatures that it detests just as much as the jungle cactus.
i would guess parasitism because the cactus is being harmed in a way an the bat is benefiting
A thick waxy coating on any part of a plant is usually there to control the evaporation of water.
It is also useful in warding off insects and diseases
it helps because
many animals eat barrel cactus such as burrowing owls, badgers, ants, rodents, and humans. the barrel cactus is also known to get up to 11 feet tall and weight more then the average man. it has spines that are 3-4 inches and it's nectar is deadly to bats.
Yes, a cactus is a producer. It makes energizing food from the photosynthetic interaction of sunlight with the plant's water, minerals, and dissolved nutrients. That food feeds the cactus, and cactus body parts may feed the consumers of the food chain.
Pachycereus pringlei The Cardon is the tallest cactus species in the world, with a maximum recorded height of 19.2 m (63 ft), with a stout trunk up to 1 m (3.3 ft) in diameter bearing several erect branches. Pachycereus pringlei, also known as Mexican Giant Cardon or Elephant Cactus, is a species of cactus that is native to northwestern Mexico in the states of Baja California, Baja California Sur, and Sonora.
the plants growing in deserts have adaptations to prevent water loss for example cactus:
1. has no leaves to prevent water loss through transpiration.
2. stem is modified in such a way that it performs photosynthesis.
3.root system is well developed and grows in deep in search of water.
Most cactus have stickery texture with toucher stems.
it slows down the loss of water
Saguaro is one of the largest cactus species on the planet. Succulent plants are ones that can hold water for long periods of time.
a cactus may have leaves and can store water as well in the stem
In a way, a cactus plant is both a fruit and a vegetable. From its growth buds come flowers, fruits, and seeds. Many of the fruits are not only edible but quite flavorful. Additionally, other body parts may be eaten as vegetables. For example, the Neowerdermannia vorwerkiicactus of Bolivia easily lends itself to being prepared and served like potatoes.
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