Several tomato plants are grown indoors next to a sunny window. the plants receive water and fertilizer and remain on the windowsill. over time the plant's stem bends toward the window. which characteristic of life is this an example of? a cellular organization b metabolism c homeostasis d response to environment

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?