<span>The trilobites seen in this image was once found widespread in the ocean. Something Changed To Limit and finally abolish their success. What do scientists use this example as proof of ? The answers are A. life changes over time and B. Vesitigial organisms once had a function in ancient times.The trilobites first appeared in the Cambrian period and though they entered a decline int the Devonian period, some of them survived until Permian time or for a period of 270 million years. They were divided into 3 segments and were early examples of arthropods. They tended to live on or near the bottom of the oceans and were scavengers in part and as well as living on the ocean floor some swam and fed on plankton. </span>
Nitrifying<span> bacteria in the soil convert ammonia into </span>nitrite<span> (NO</span>2-) and then into nitrate<span> (NO</span>3-<span>). This process is called nitrification. </span>
<span>Angioplasty is the technique of mechanically widening narrowed or obstructed arteries. This is the process of putting a balloon in your arteries to widen it for blood flow. So Angioplasty would not be the best way to treat an aneurysm because an aneurysm is a bubble full of blood. Angioplasty would not work.</span>
