Why is it important that the cells that result from meiosis have only one copy of each chromosome? a) because during fertilization they would produce a cell containing three times the normal number of chromosomes b) because during fertilization they would produce a cell with half the normal number of chromosomes c) because during fertilization they will produce a cell with one of each type of chromosome d) because during fertilization they would produce a cell with two of each type of chromosome

The diagram below shows the layers of a rock having a trilobite: a rock column labeled rock is shown. the column has three layers. the bottommost layer of the rock has one shaded rhomboid shape, the middle layer has a rhombus with a diagonal along with two identical organisms marked as, trilobite, in the key, the top layer has two semicircles. a key is shown on the right side of the diagram. the shaded rhombus is marked as a, the rhombus with the diagonal is marked as b, the semicircle is marked as c which statement about the rock fossils is true?