Which statement best describes cancer cells? they grow as a single layer of cells. they cease to reproduce after 20–50 mitotic divisions. they reproduce only when needed to replace missing cells. they are not regulated by contact inhibition.

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.