An amphibian heart is shown in the diagram which statement best describes the three chambers of the heart? a) Y receives oxygen-rich blood, X receives carbon dioxide-rich blood, and Z pumps blood

b) Z receives oxygen-rich blood, X receives carbon dioxide-rich blood and Y pumps blood

c) X receives oxygen-rich blood, Y receives carbon
dioxide-rich blood, and Z pumps blood

d) Y receives oxygen-rich blood, Z receives carbon dioxide-rich blood, and X pumps blood

PLEASE HELP ASAP

How do you transfer mrna into codons ? i'm so confused : (

How does upwelling affect coastal fisheries? upwelling damages nutrient supplies at coastal fisheries as the warm, nutrient-rich surface water is replaced by nutrient-poor, cold water. upwelling damages nutrient supplies at coastal fisheries as the cold, nutrient-rich surface water is replaced by nutrient-poor, warm water. upwelling improves the nutrient supply at coastal fisheries as the warm, nutrient-rich surface water replaces the nutrient-poor, cold water. upwelling improves the nutrient supply at coastal fisheries as cold, nutrient-rich water replaces the warm, nutrient-poor surface water.

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the: