Contain structures that regulate and perform life functions.
there is no clear evidence about plants evolving in the desert, or fossils of any kind of cactus despite their distribution over a large area. But, scientists are of the opinion that they acquired specific attributes millions of years ago, as a response to the vastly changing climate and conditions.
-Desert plant root system
A typical desert plant has a deep root system, which is a specific physical mechanism. As the roots grow deep down the soil, they absorb soil water, which is then transported to the upper portions of the plant.
-Desert plant leaves
Bear small foliage with waxy surface to minimize transpiration (loss of water through stomatal pores), which in turn, helps to conserve water.
Answer:
D -herbivore population sizes decrease ,then the carnivore population sizes decrease
It controls all the involuntary actions like digestion and beating of our heart
They are autotrophs.
The process by which they get energy is called Photosynthesis - it is used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy.
