Protist pathogens share many metabolic pathways with their eukaryotic hosts. Other marine protist are neither single-celled nor microscopic, such as seaweed. The terms "protozoa" (and protist) are usually discouraged in the modern biosciences. Giardiasis is a disease of the small intestine caused by a protist parasite "Giardia lamblia". Diatomaceous earth consists of fossilized remains of diatoms, a type of hard-shelled protist. This species consumes a varied diet of plant, animal, protist, and algal material. See also List of sequenced protist genomes. They can parasitize animal or protist hosts. The protist responsible for toxoplasmosis is "T. gondii". "Crithidia luciliae" is a haemoflagellate protist with an organelle known as the kinetoplast. At least 53 species of protist and animal parasites have been identified in elk. Recently an orphan protist Quadricilia rotundata finally finds fts phylogenetic home in Cercozoa. For a more complete list, see the List of sequenced protist genomes. The mitochondria then generates energy for the protist to keep up with cellular life functions. Clubroot is a soilborne disease caused by the biotrophic protist "Plasmodiophora brassica".