If I tell you to f me, would you?
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What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?

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