Which of the following is an example of reproductive isolation?
a.)two populations of finches that cannot produce viable offspring
b.)two populations of finches that have different feather colors
c.)two populations of salamanders that live in different lakes
d.)two populations of salamanders that have different tail lengths

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