Some common species of amoebas feed on decaying matter at the bottom of freshwater streams and stagnant ponds. The best-known of these, Amoeba proteus, is used for teaching and cell biology research. Parasitic species include Entamoeba coli, which resides harmlessly in human intestines, and Entamoeba histolytica, which is found in places where sanitation is poor and is carried by polluted water and sewage.
Not all the parts are sealed, however, which suggests the iPhone SE is not entirely resistant to water, as the Samsung Galaxy S7 is. Indeed, Apple hasn't officially said the iPhone SE, or the 6s/6s Plus, is resistant to water, whereas Samsung actively boasts water-resistance as one of the Galaxy S7's defining features.
Consumer Reports: Samsung phone not actually water-resistant. A water-resistant Samsung Galaxy S7 Edge smartphone is submerged in water Feb. 22, 2016, during a preview of Samsung's flagship store in New York's Meatpacking District. Consumer Reports says a Samsung phone that's advertised as being water-resistant actually isn't. The problem appears limited to the Galaxy S7 Active, a rugged model available only through AT&T in the U.S. The standard S7 and S7 Edge models have the same claims on water resistance and passed tests.