• Some people describes global warming as a "moral issue" and our carbon dioxide emissions as "deeply unethical." Do you agree? Is this a moral issue? What should we as humans do about it?

Why aren't the stains like crystal violet and safranin washed away with water during simple staining?

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a.an ionic bond is formed between the oxygen and carbon atoms. b.four valence electrons are shared. c.two valence electrons are shared. d.valence electrons are shared between oxygen atoms.