The number of steps an organism is from the start of the chain is a measure of its trophic level. Food chains start at trophic level 1 with primary producers such as plants, move to herbivores at level 2, predators at level 3 and typically finish with carnivores or apex predators at level 4 or 5.The path along the chain can form either a one-way flow or a food web.he trophic level of an organism is the position it occupies in a food chain.
The Internet protocol suite not only includes lower-layer protocols (such as TCP and IP), but it also specifies common applications such as electronic mail, terminal emulation, and file transfer. This article provides a broad introduction to specifications that comprise the Internet protocols.
Every device on the Internet needs a unique IP address. Your ISP provides you with one, allowing one device to access the Internet. A router will access the Internet through that IP address, then provide local IP addresses--not visible on the Internet--for the PCs and other devices connected to it.