nucleus, mitochondria , cell membrane and ribosomes are self replicating bodies of cellby Qadri
A self replicating computer program is on that repeats itself over and over. Many computer viruses are designed to do this. For more information on computer viruses visit Answers.com
No but they can eat people if they are big enough.
by not eating uncooked pork or swallowing fleas.
Worms are invertebrates; not bugs.