Answer:
A desertification refers to the term which means desertlike conditions in a region. This region exhibit lack of water. Loss of fertile soil from drying out is desertification. The soil being exposed to warm weather conditions looses it's water content and becomes compact and hard.
Explanation:
Answer:Darwin realized that existing heritable variation in a generation must be the starting point for a change in nature. In any generation, the animals in the litter are never quiet the same. And in the wild,such a tiny heritable variation might make all the difference between life and death.
Explanation:
A skin disorder caused by blockage of oil glands is called "acne".
Answer: The correct answer is : It has half the amount of DNA as the cell that began meiosis.
Explanation: Meiosis gives rise to four unique daughter cells, each one having half the number of chromosomes that the mother cell, this is meiosis I. During meiosis II the two cells go through four phases of division again, at this stage there the number of chromosomes in daughter cells is reduced.
