22.) Why is the 4 chambers heart of human more efficient than the 2…

Question Answered step-by-step 22.) Why is the 4 chambers heart of human more efficient than the 2… 22.) Why is the 4 chambers heart of human more efficient than the 2 chambers heart of a fish ? A. ) In a 2 chamber heart very little pressure is formed in the ventricle  B.) In a 4 chamber heart , fully oxygenated blood is pumped out to the lungs and then is pumped again out the body to the body twice increasing the flow .  C.) In a  2 chamber heart , the atrium is less efficient at receiving incoming oxygen blood  d. ) In a 4 chambers heart blood is fully oxygen before it is pumped throughout the body  .   24. The blood in the veins is at the relatively low pressure but is moved toward the heart by what forces ? A, Think smooth muscles  layer on veins contracts  B. Nearby skeletal muscle compression and lowered thoracic pressure  C. higher pressure in the thorax than the abdomen  D. strong osmotic ( colloidal ) pressure next to the veins    23.  Where in the cardiovascular system are gases nutrient and waste Exhange with the cells? A. capillaries  B. arterioles  C. arteries  D. veins          Biology Science Physiology BIO 202 Share QuestionEmailCopy link Comments (0)