Different types of hormones are secreted in the body, with different biological roles and functions. A hormone (from the Greek participle âá½ÏÎ¼á¿¶Î½â) is any member of a class of signaling molecules produced by glands in multicellular organisms that are transported by the circulatory system to target distant organs to regulate physiology and behaviour.
exists and is an alternate of . A simple reason for the invention of the stapler would be to ease our work and keeping all the documents together. It was invented when a lot of paperwork started taking pace and need to keep them together increased. King Louis XV invented the first stapler in 18th century.
Report Abuse. The most common staples are the ones used for paper. They are almost exclusively applied with a mechanical stapler which clinch the legs after they pass through the paper. Staples of this type were used on a desktop stapling machine, which was developed in 1877 and registered under US Patent No. 195,603. Modern staples for a paper stapler are made from bent wire and glued together to form a long strip of staples. The papers to be fastened are placed between the main body and the anvil.