Nematode

Many nematodes are parasitic organisms which live inside the guts of many animals, gastropods and fish.. perhaps even you. They grow up to 5mm in length and consist mostly of reproduct tissue. These little suckers are live soley to breed, and feed directly off its host by attatching itself using hooks and sucking up through a structure known as the stylet.

Most other nematodes feed on bacteria, fungus or plants, and can cause much havoc to herbs and fruit (such as the tomato) by reducing the flow of water through the plant and depriving it of nutrients.