. The following data show the abrasiveness of two brush-on denture cleaners A and B, measured by weight loss in mg. State if there is a significance difference? A: 10.2, 11.0, 9.6, 9.8, 9.9, 10.5, 11.2, 9.5, 10.1, and 11.8 B: 9.6, 8.5, 9.0, 9.8, 10.7, 9.0, 9.5, and 9.9

what's the

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

not sure if this is what you'r looking for eubacteria and archaebacteria

geologic time scale (for gradpoint) =)