Select the correct statement about the heart valves. a. The tricuspid valve divides the left atrium from the left ventricle. b. The mitral valve separates the right atrium from the right ventricle. c. The AV valves are supported by chordae tendineae so that they do not blow back up into the atria during ventricular contraction. d. Aortic and pulmonary valves control the flow of blood into the heart.

Explain the cellular functions that occur when antibiotics attack a bacteria cell. a. antibiotics target the cell wall, cell membrane, and the processes of protein and nucleic acids production in bacteria to rupture the cell. b. antibiotics create dormant resistant endospores to preserve the genetic material and rupture the cell. c. antibiotics target the cell wall and form a bridge-like connection to form conjugation. d. antibiotics use binary fission to grow twice its size, replications its dna, and split into two cells.

Dna replication occurs in preparation for

What are the three groups of atoms that make up amino acids called