paricites are like worms that can live in almost anything.tape worms are the biggest of all worms and can get as big as several feet.and only comes out of a body when it want to and is found in 80% of the people in the world.
They eat the algie off rocks If you didn't know, algie is the green powdery stuff... and no its not moss.......... algie isn't as slimy and is normally underwater.... or they can eat the tiny plankton and paricites.
There's only one way that they can be formed over millions of years. An animal dies, it soon is compressed with heat/pressure and turns to sediment. The only other way is if you want to make a false fossil. Just use plaster. Accualy, no. fossils can be formed by.... 1. sediment piling on the substance and creating a mold 2. an orginism may be incased in ice, which counts as a fossil 3. mud, bogs, and mucky water may presurve an orginism 4. heat and pressure makes a metamorphic rock, and only sedimentary rock can weild fossils HOPE I HELPED ^^ IF I DID CHECK OUT JEALOUSNOTAHATER ON YOUTUBE, SUBSCRIBE, RATE, AND COMMENT TOO. I kept his answer so you could see how wrong he is lol :) oh, they can also be incased in amber, a sticky substance that ozzes out of trees to protect them from paricites