Natural phenomena that cause shifts in global climate are changes in Earthâs orbital cycles, volcanic eruptions, variations in solar activity, movement of tectonic plates, and the atmospheric-ocean pattern in the tropical Pacific Ocean, known as El Nino-NiÃ±o Southern (OSCILLATION). enso
rating newest oldest best answer most adult lampreys are parasitic sucking the blood of other fishes the horny teeth set in the circular jawless mouth attach to the prey and the lamprey feeds as it is carried along lampreys have an anticoagulant in the saliva that keeps the blood of the victim fluid some freshwater lampreys eat flesh as well as blood source s http www encyclopedia com doc 1e1 lamp
(Back To Top of Page). The Purple Sea Urchin's diet consists of plants, animal matter, including algae, dead fish, sponges, decaying matter, mussels, barnacles, and kelp. The Purple Sea Urchin is the prey of crabs, sunflowers stars, snails, most birds, fish, sea otters, and humans. The Purple Sea Urchin is actually a delicacy in some countries. (Back To Top of Page). The Purple Sea Urchin reproduces by releasing several million jelly coated eggs at a time.