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.
I think the answer might be giant otter , but not sure
Answer:
The correct answer is option C. The new cells results when they sexually reproduce with each other.
Explanation:
In sexual reproduction, sperm cell of male organism combined with egg cell of female organism forming a fertile zygote. This zygote changes into a new organisms. In sexual reproduction both sperm cell and egg are haploid i. e. half number of chromosome while the zygote is diploid i. e. double number of chromosome.
The answer is B. It is B because in if convection currents cooled down then the earth would die.
