Explanation:
Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
I think two because a seems to represent a blood cell and blood cells carry oxygen
Answer:There are three mechanisms of horizontal gene transfer typically used by bacteria: transformation, transduction, and conjugation. Transformation allows for competent cells to take up naked DNA, released from other cells on their death, into their cytoplasm, where it may recombine with the host genome.
Explanation:
The UV rays could harm the DNA of skin cells. Skin cancers begin when the said harm affects the genes’ DNA which control the growth of the skin cell. There are three main types of UV rays, the first one is called UVA rays. They can damage the DNA of skin cells and age them. They are connected to long-term skin damage, however they are also thought to cause some skin cancers. The second one is called UVB rays, they have a little more energy than UVA rays. They are thought to cause most skin cancers as well. They can immediately damage the DNA of skin cells. The third one is called UVC rays, they have a greater amount of energy than the other types of UV rays, however they don’t usually cause skin cancer.
The answer is 10 days. An average individual who chooses to fast, may deplete their stored energy in approximately 10 days, while malnourished or less healthy individuals,who considers fasting may deplete their energy stores earlier than an average individual.