Molly used a ramp to load boxes into a truck. her input work was 5,000 j and the output work was 3,000 j. what was the mechanical efficiency of the ramp? o a. 167% o b. 2,000% o c. 40% o d. 60%

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

What is a difference between systemic and pulmonary circulation? a. systemic circulation carries oxygenated blood to the lungs and pulmonary circulation carries deoxygenated blood to the body. b. systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. c. systemic circulation carries deoxygenated blood to the body and pulmonary circulation carries oxygenated blood to the lungs. d. systemic circulation carries oxygenated blood to the body and pulmonary circulation carries deoxygenated blood to the lungs.

The wind is to parities grasses because it them