So, What Does A Medical Assistant Do In a Pediatric Office? Medical assistants can be employed at healthcare practitionerâs clinics or offices, hospitals, insurance companies, and other healthcare-related institutions. In general, clinical and administrative tasks are similar across all sites of work.
Sedimentary rocks can contain fossils because, unlike most igneous and metamorphic rocks, they form at temperatures and pressures that do not destroy fossil remains. Dead organisms can become sediments which may, under the right conditions, become sedimentary rock.
Chemical sedimentary rocks are identified by identifying the mineral from which they are composed. In this lab there are four minerals that need to be identified-quartz, halite, gypsum and calcite.Quartz has a hardness of 7 and is very difficult to scratch, even with a good quality knife blade.lastic sedimentary rocks contain clasts. These are fragments or pieces of rock or minerals. The composition of clastic sedimentary rocks is divided into three types-clay/silt, sand and gravel. Clay and silt are less than 1/16 mm. These are not visible to the unaided eye.