The name Tcl is derived from Tool Command Language and is pronounced tickle. Tcl is a radically simple open-source interpreted programming language that provides common facilities such as variables, procedures, and control structures as well as many useful features that are not found in any other major language.n most Linux systems, Tcl/Tk is already installed. You can find out by typing tclsh at a console prompt (xterm or such). If a % prompt appears, you're already set. Just to make sure, type info pa at the % prompt to see the patchlevel (e.g. 8.4.9) and info na to see where the executable is located in the file system.
Because its nervous system is similar to that of grasshoppers and ants, lobsters are sometimes called bugs.. When food is scarce, lobsters can turn cannibal and dine on smaller lobsters. Lobsters reproduce by laying lobster eggs.
If a species sticks around and looks after the eggs until they hatch, and even watches over the baby fish, usually less eggs are laid. For example, Cod lay up to 9 million eggs, but these are left to drift where they will, and so many don't survive even to hatch.Herrings, which lay around 50,000 eggs, also abandon them, but the eggs stick to the bottom and are less likely to be eaten by predators.hat is how this fish lays eggs.   Actually, it depends on the fish. Some fish, like salmon, lay only a few hundred eggs. But generally, marine fish lay more eggs. Some marine fish lay millions of eggs.