The most outer layer of the earth is the crust
Gram negative and Gram positive refers to if bacteria retain the Gram Stain or not. Gram positive do. Gram negative do not. Gram positive bacteria will appear purple/blueish after staining. <span>It is important because whether a bacteria is Gram positive or negative helps determine the species, characteristics of disease, and the best antibiotics to use in treatment. </span>
bcd i think..............
The well - designed experiment test one factor at a time. The answer to the question above is letter A. 1. The items that are being tested are the independent variables and that they cause the dependent variables to change.