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.
Marble is another example of a metamorphic rock. It is formed from limestone. Metamorphic rocks sometimes contain fossils if they were formed from a sedimentary rock, but the fossils are usually squashed out of shape. Metamorphic rocks can be formed from any other type of rock-sedimentary or igneous.Remember these two examples of common metamorhpic rocks and where they come from:slate is formed from shale. marble is formed from limestone. 1  Page. 2  1. 3  2. 4  3. 5  4. 6  5.etamorphic rocks can be formed from any other type of rock-sedimentary or igneous. Remember these two examples of common metamorhpic rocks and where they come from: slate is formed from shale. marble is formed from limestone. 1  Page. 2  1.