Which of the following substances is not a fossil fuel? a.
coal
c.
gas
b.
oil
d.
wood

The function of the excretory system is to control homeostasis and

When fossil fuels are burned, carbon dioxide is released. how does this gas impact the 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?