From Minecraft Wiki. The purpose of an enderman trap (popularly called Ender Ender) is for the easy access and killing of endermen. It is possible for the user to create such a trap that can be used by simply standing still, and looking at the endermen. This angers any you look at, luring them into the trap.he purpose of an enderman trap (popularly called Ender Ender) is for the easy access and killing of endermen. It is possible for the user to create such a trap that can be used by simply standing still, and looking at the endermen. This angers any you look at, luring them into the trap.
Causes of Cross-Contamination - how it happens (continued): â¢Processing excessive number of specimens in one batch due to staff shortages may lead to breakdown in protocol adherence and introduce potential error for cross-contamination.
1 Mosaic Down syndrome. 2  In this rare form of Down syndrome, children have some cells with an extra copy of chromosome 21. 3  This mosaic of normal and abnormal cells is caused by abnormal cell division after fertilization. 4  Translocation Down syndrome.