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.
A dichotomous key is a reference tool used mainly in biology. It allows the scientist to determine what an organism is by answering numerous questions that have only two possi â¦ ble answers. It neither can be a yes or a no, a true or false. Ultimately, the answers will point to a specific organism or some higher taxonomic level. Dichotomous keys can be very broad or extremely specific. To create a key, you need a working knowledgeof the differences between groups of organisms. The more specific the key, the more knowledge you need.