Identify the prominent vein runs through the liver, diaphragm, and right pleural cavity to the heart of the fetal pig. Arteries always carry oxygenated blood in the adult animal. Veins are the only blood vessels that have valves.
Veins always carry deoxygenated blood in the adult animal.
Arteries always carry blood away from the heart. In vertebrates, the brain centers for receiving most sensory information are located in the a. cerebellum. Following this principle, the olfactory lobes are likely to be well developed and relatively large in animals characterized by an excellent sense of a. sight. Formation of gametes in female germ cells often involves unequal division of the a. homologous chromosomes. Meiosis II b.