Why are the polychaete worms living near the underwater volcanic vent called Pompeii worms?

How do you name a compound with more than two elements?

Are the layers of rock above and below the coal older or younger?

Which of the following statements is true regarding a basic amino acid? a.) the hydrophilic r group of a basic amino acid will be located on the interior of a protein b.) the positively charged r group of a basic amino acid could bind dna c.) the r group of a basic amino acid would only be able to form covalent bonds with other molecules d.) a basic amino acid would be considered both polar and hydrophobic e.) all of the above