In diffusion or osmosis, substances move a concentration gradient.
through
1.down
2.up

In general in which direction does wind blow

You need to make 500ml of 7h9(+) media with 1x adn and 30ug/ml of the antibiotic kanamycin. your stock solutions are 10x adn and 30mg/ml of kanamycin. the solvent is distilled water. how much of each component will you need to make the desired final solution?

Did you know that a blue wales tongue weighs more than an elephant?