Are the backbones of the DNA molecule identical in all living things?

What are the pasenteges of the gasses in the air? Where was Isacc newton burried? The chance that an earthquake will occur in your town during the next year is an example of? What typeof rock forms at the edges of cooling magma chambers within the earth? Is the greatest amount of energy is available at the producer level is true or false? What is the strongest Bey? Is it true in a gas kept at a constant temperature all molecules move with the same speed? 1 Mg equals how many micrograms? What part of the digestive system contains ileum? Is it normal for tester to show hot on a light switch with it in the off position and no power going to the light it controls? What is a 4th level consumer? What makes a cell membranes waterproof? What job does chemical tracer do? Who uses microfiche? What type of metamorphism results in rocks that are hundreds of square kilometers in size? What are some properties of vegetables that change if properties change why is salad called mixture? Can you please produce a precise diagram of magnesium ribbon burning? What does negative magnification mean? Poison that is an enzyme inhibitor but not a heavy metal? What is free space?