Comparing the skeletons of which of the following fish would
best show the evolution of a fish species?
a male fish and a female fish that could produce offspring
the same fish just before it received a cut and after it healed
a fish that lived recently and a fish that lived a long time ago
the same fish just after it hatched and when it was full-grown

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