Complete separation of pulmonary and systemic circulation is required in order to provide A. increased cardiac output
B. increased ventricular contraction
C. Stronger ventricular contraction
D. more efficient oxygenation of the blood.

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

Wich is not standing in the way of astronomers getting a good view of different star