Blood flow to the vertebrae, spinal cord, and its meninges, breasts, lungs, pleurae, pericardium, esophagus, diaphragm, and skin and muscles of the thoracic wall comes from branches off the
aorta

What protects the lining of the stomach from acidic gastric juices?

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of

What is the starting point in replication called