BRAINLIEST Which statement best describes a characteristic of a scientific theory? Supported by mathematics to explain a principle of nature A readily demonstrable fact that cannot be disproven An educated guess that has not been consistently tested Supported by a substantial body of evidence observed in nature

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geographical equipment to analyze the composition of rocks

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.

Sedimentary rocks located under the ocean may contain what commercial products