Specify volume and select unit of volume measurement. Then, select material for which to perform the calculation, and press Calculate button. The weight of the selected material is calculated based on the material density and its given volume.The number enclosed in square brackets is the item's density in kilogram per cubic meter. The calculator converts the weight, volume and density into many units of measurement.he weight of the selected material is calculated based on the material density and its given volume. The number enclosed in square brackets is the item's density in kilogram per cubic meter. The calculator converts the weight, volume and density into many units of measurement.
Scientists can tell whether organisms are closely related by  comparing their DNA. This will allow then to look at various traits  and features so as to compare the relationâ¦ship between organisms.
Check the organism's size. One of the quickest ways to tell the difference between a bacterium and a virus is to determine whether you can see it with a regular microscope. If you can see it, it is not a virus. Bacteria are single-celled organisms that can live either inside or outside other cells. 2  They can survive without a cellular host. 3  Viruses, on the other hand, are only intracellular organisms, meaning that they infiltrate the host cell and live inside the cell.