Answer:
Bacteria develop resistance mechanisms by using instructions provided by their DNA. Often, resistance genes are found within plasmids, small pieces of DNA that carry genetic instructions from one germ to another. This means that some bacteria can share their DNA and make other germs resistant.
Answer:
the virus undergoes genetic changes
<span>In a desert, water is in scarce supply, so excreting water would be a bad thing and might cause the death of any animal that does so due to dehydration.
There can be several different mechanisms to overcome this. One would be to have the bladder discharge urine into the large intestine where the water can then be reabsorbed into the body while the urea in the urine is passed out along with other solid wastes produced by digestion. Some other methods of conserving water would be for the kidneys to extract more water from the urine leaving the urine fairly concentrated. Also animals may behave in manners that conserve water such as staying in the shade during the day and only being active at night.</span>
The U. S House of Representatives voted to outlaw a specific type of biological experimental procedures. Proponents of the bill called certain experiments ghoulish, immoral and dangerous, but others argued that it was immoral to prevent research that might ultimately help people with incurable ailments like Alzheimer's disease, diabetes and spinal cord injuries. In fact, advances in this area are consistently made overseas, because opposition to such research is so strong in this country. In this example, research in the fields of cloning and stem cell harvesting are being hindered in the United States.
