Viruses, bacteria, protists and fungi. 1  1. Module Two: Life at a Molecular, Cellular and Tissue Level Paper One. 2  2. â¢ Owing to evolution, we have a large diversity of life on planet Earth. 3  The earliest organisms that were thought to have developed were viruses, protists, bacteria and fungi. 1. Module Two: Life at a Molecular, Cellular and Tissue Level Paper One. 2  2. â¢ Owing to evolution, we have a large diversity of life on planet Earth. 3  The earliest organisms that were thought to have developed were viruses, protists, bacteria and fungi. 4  These are the organisms we will be focussing on.
OPSECâs most important characteristic is that it is a process. It is an analytical process that can be applied to any operation or activity for the purpose of denying critical information to an adversary.
Internet Protocol Security (IPsec) is a protocol suite for secure Internet Protocol (IP) communications by authenticating and encrypting each IP packet of a communication session.Psec is officially standardised by the Internet Engineering Task Force (IETF) in a series of Request for Comments documents addressing various components and extensions. It specifies the spelling of the protocol name to be IPsec.