Chap13 Circulatory System
1. Chap No.12 Circulatory System 2. Human heart is surrounded by a tough membrane known as: (a) Miringes (b) Peritoneum (c) Pericardium (d) Mesentery C 3. There are two types of circulatory fluids the blood and: (a) Coelomic (b) Lymph (c) Water (d) Water and Coelomic B 4. ...