- Life Sciences
single-celled organisms with all life functions performed within the cell.
a molecule that is built up of two or more different elements that are chemically joined...
an organism that helps to spread a disease, but is not infected with the disease.
modified phloem parenchyma cells that help translocate food substances in the plant.
simple epithelium with elongated, cells that lines the stomach, small intestine, urethra, vas...