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When the virus enters a living cell (a human cell, if the virus infects humans, or a bacterial cell, if the virus infects bacteria) it reprograms that cell and turns the cell into a virus factory. Adaptive Immunity: All organisms have different types of immunity to protect themselves against infection.
While both can cause disease, viruses are not living organisms, whereas bacteria are. Viruses are only "active" within host cells which they need to reproduce, while bacteria are single-celled organisms that produce their own energy and can reproduce on their own.
As you might think, bacterial infections are caused by bacteria, and viral infections are caused by viruses. Perhaps the most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.
Some bacteria help to digest food, destroy disease-causing cells, and give the body needed vitamins. Bacteria are also used in making healthy foods like yogurt and cheese. But infectious bacteria can make you ill. They reproduce quickly in your body.
Ureter is a tube that carries excreted urine to the bladder..
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With the advancements in the genetic engineering, many concerns are raising day by day on the usage of this technology. Two of the ethical concerns are:
1) The field of genetic engineering allows parents to know the disorders that will arise in the up-coming baby that they will have. As a result, a fetus that is not normal will be aborted by the parents. This action is considered unethical as it comes under killing.
2) The advancements in genetic engineering led to the sequencing of the entire human genome. Scientists suspect that cloning a human will lead to unethical situations like more crime scenes.
