How does atp supply for cellular activities

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 short-term environmental change is most likely to lead to ground shifting, landslides, and the collapse of buildings or roads? forest fires flooding earthquakes

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins