A prokaryote is a unicellular organism that lacks a membrane-bound nucleus (karyon), mitochondria, or any other membrane-bound organelle. The word prokaryote comes from the Greek ÏÏÏ (pro) before and ÎºÎ¬ÏÏÎ¿Î½ (karyon) nut or kernel. Prokaryotes can be divided into two domains, archaea and bacteria.
You must register your petâs microchip to give your pet the best protection. Register your petâs microchip in a national pet recovery database such as HomeAgain with your contact information, so you can be contacted when your lost pet is found.
Don't get your small dogs microchipped - the procedure can be deadly, warn vets who urge owners to flout new law. 1  New law requires all dogs in UK that are eight weeks or older to be chipped. 2  Procedure involves inserting sterile chip between a dog's shoulder blades. 3  But senior vet warned animal could suffer 'adverse reaction' to procedure.