Scientists Suspect That the First Macromolecules to Form When Cells

Q7: Bats are a healthy carrier for which

Q8: Vibrio cholerae usually exists in a harmless

Q9: The HIV enzyme,_ manufactures a DNA copy

Q10: In _,atmospheric nitrogen is converted to a

Q11: Viral genomes can be of DNA or

Q13: A type of Archaea,known as _,use hydrogen

Q14: _ is a disease of the respiratory

Q15: Describe what scientists feel may be the

Q16: Which type of cells is the HIV

Q17: _ consist of a core of segments