In what stage are individual chromosomes invisible?

What could be the products of calcium carbonate CaCO3 if it undergoes a decomposition reaction? Which bones are almost equal in length and width? Is fog an clouds part of the atmosphere? Can it be dangerous if you get a cactus thorn in your skin? What does nahar mean? What are the guidelines used to organize the elements in a composition? What is the noun of evacuate? What concludes the number of significant figures that should be maintain in recording the measurement? What you combine to produce an ester? What role does water take in reactions in making and breaking bonds in the body? When is Orlando hurricanes season? What eukaryotic chromosomes contain both DNA and protein tightly packed together to for a substance? If the volume of water produced during the reaction doubled what would happen to the ratio of hydrogen and oxygen? When do you set the clock back one hour in California 2010? How much amps of 3000watts on 220volt ac single phase? What organelle receives instructions from the hereditary material on how when and in what order to make proteins in a cell? What are microtubes made out of? What do periodic oscillations look like? What does a sulfur atom need to do to become an ion? What is the word called that limits the cell size?