If you have 3 cells undergo meiosis, this would be a case that rarely happens. Normally cells doing undergo this unless they are a watermelon or some type of fruit. For Humans this could be a genetic disorder like Downsyndrome. Have 3 cells undergo meiosis is 3n. Having one cell undergo meiosis is 4 haploid cells. Now, you have 3n just plug in the number 4 where n is at ( 3(4)= 12) and your answer should be 12 haploid cells that are being produced.
According to plate tectonics theory, Earth's outer shell is divided into multiple plates that slowly glide over the mantle. This slowly changes Earth's surface over time by merging, or separating, continents.
