While the number of cells in plants and animals varies from species to species, humans contain more than 10 trillion (10 13) cells. Most plant and animal cells are visible only under a microscope, with dimensions between 1 and 100 micrometres.
Owner of Jones Mineral Cabinet, Geology and Paleontology Supervisor, interested in Earth and Planetary sciences. Anthracite is a metamorphic rock commonly called coal ,whose protolith or parent rock is bituminous coal.ituminous coal is a sedimentary rock. Anthracite coal is considered a metamorphic rock. 5 people found this useful. Edit. Share to: 1  The Periodic Table of Elements Life is sustained by a number of chemical elements.
All coal is metamorphic and sedimentary rock. When coal forms it is made out of ancient organic material, and over a long period of time the coal is buried under sediments and â¦ water.oal is an organic sedimentary rock because it forms from the remains for plant material. Source: California Edition, Earth Science; Geology, the enviorment and the Universe Pg. 131.