Which phase of cell division is photographed in order to make a karyotype?
a. anaphase of mitosis
b. anaphase i of meiosis
c. metaphase of mitosis
d. metaphase ii of meiosis

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

Are the layers of rock above and below the coal older or younger?

How does the closing of the ductus arteriosus and ductus venosus alter circulation in an infant? a. increases blood flow to the pulmonary artery and increases blood flow to the umbilical vein b. increases blood flow to the pulmonary artery and reduces blood flow to the umbilical vein c. reduces blood flow to the pulmonary vein and increases blood flow to the umbilical artery d. reduces blood flow to the pulmonary vein and reduces blood flow to the umbilical artery