The effects of crops waste on cattle growth

Unit 6 - The Circulatory System

1. The feature(s) of the cat’s circulatory system that are unique to mammals include anterior blood vessels, a four-chambered heart, and specialized abdominal blood vessels. As far as anterior blood vessels, the heart is covered by a tough membrane, the pericardium. In the pericardium is the pericardial vein. The internal jugular veins drain the brain and spinal cord. The internal carotid arteries supply the brain. The lingual...