Bacteria in a petri dish doubles every 10 minutes. step by step with the work included please! a) If there are 10 bacteria initially, how many are there after 120 minutes? b) If there are 10 bacteria initially, when would there be a million bacteria?

coal is not sustainable because it will one day run out.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.