The theory that says Earth's continents once made up an ancient supercontinent, and have been drifting apart ever since, is called the theory of...
Natural Selection
Plate Tectonics
Gravity
Pangea
PLS HELP

Which statement explains how gravity and intertia work together

Assume that you are interested in separating short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range. you have two recipes for making your polyacrylamide gels: one recipe uses 1.5 percent agarose and would be considered a “hard gel,” while the other uses 0.5 percent agarose and would be considered a loose gel. which gel should you use to separate the short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range?

Do anyone know who mrs leddy is from duval charter if so me on the homework for 40 points