Pablo has eight marbles that are all the same size. He knows that one marble has a mass of 10 grams. To find out the total mass of all his marbles together, he adds 8 tens and gets a total of 80 grams

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin

Paleontologists have found plant fossils deep within the layers of the north polar region. these leaf fossils have been labeled as to the rock layers they were found in, with the lower numbers being layers close to the earth's surface and higher numbers representing deeper layers. according to the numbers of these four leaf fossils, what might you infer?

Explain the purpose of a molecular clock and the properties that a section of protein must have to be used in this way.