Micrococcus luteus is a Gram-positive, to Gram-variable, nonmotile, Coccus, saprotrophic bacterium that belongs to the family Micrococcaceae. It is urease and catalase positive.
Why is a mammoth more likely to fossilize than a caterpillar? A mammoth is more likely to fossilize than a caterpillar because a caterpillar has no hard tissue. Bones and cartilage are much more likely to fossilize. Edit
This technique allows for them to appear docile. Another piece of evidence is a group of animals known as Cnidarians, more commonly thought of as jellyfish. Cnidarians are slightly more complicated than Porifera's because they can actually move because they have two life cycles unlike Porifera's, the Medusas Stage and the Polyp Form. The Medusas Stage allows for the cnidarians to actively move using their long tentacles to pull the water into themselves to gain nutrients.