On May 14, 1796, Jenner<span> took fluid from a cowpox blister and scratched it into the skin of James Phipps, an eight-year-old boy. A single blister rose up on the spot, but James soon recovered. On July 1, </span>Jenner<span> inoculated the boy again, this time with smallpox matter, and no disease developed. The </span>vaccine<span> was a success.</span>
<span>D.It has affected the fates of a space probe and a commercial airline flight.</span>
Well now not only are you killing less aqua animals. But as well as you are affecting less drinking water. But the main town supply of fish and water come from there, thus making it dangerous and hazardous after being infected.
Hope this helps
Answer:
it is the x gene mutation