What is orthnology?

The mass number of an atom is 234 and the atom has 60.0 more neutrons than protons what element is it? What is the difference between gram's stain and wright's stain? Who has the right to have children no matter how they were created? What state of matter is modeled by a box of marbles sliding around each other? How often should you check the temperature of foods when cold and hot-holding? Aquaporins are believed to be present in red blood cells and kidney tubules but very few other cells in the body? Which is the force of repulsion between two positively-charged particles? What are the two basic family types of BGAs? Which safety practice should always be done at the beginning and the end of a microbiology lab? How do you write 600 billion in scientific notation? How does a radar gun work? How can you say if the test has its own validity? How do you measure the length of a pontoon boat? Why does a heavier person go down the slide faster? What metric unit for height? Function of spatula in laboratory? Advantages of confounding in experimental design? What must be present for sound to travel? Why do different elements make different colors in a flame test? What are the disadvantages of scientific knowledge?