The dependant variable would be the salmon, because they depend on the water and pollution levels to give a result.
<span>Electrical signals in the body are often based on ions because ions are charged particles</span>
Answer:
Oh gosh, thank you! (I feel like this'll get deleted, so here are the answers: Tony Stark became Iron man when he was in like this military place? I don't know the exact details, but when people were trying to fight him he made a suit to fight back. The suit was surprisingly powerful, so he re-made it to be more appealing, light-weight, and stronger.
All he has to do is change into his suit. He doesn't actually have any superpowers, unless you consider being really smart a super power)
Answer:
i cant help youuuu
Explanation:
...mmmm... i dont knowww solo sorryyy abput itt!!!
ssoorryyyy SORRY
Answer:
A. To cause intact DNA to precipitate, so the activity of DNase can be determined.
Explanation:
The presence of DNase is special feature for some species of bacteria and can be used for identifying them. During DNase test, diluted hydrochloric acid (HCl) can be poured onto the agar plates so that there will be a clear zone close to the bacteria colonies. Each nucleotides are soluble in diluted HCl. But DNA is not soluble in the diluted HCl, thereby making the DNA to precipitate in the rest of the plate.