1 (1 point) The pharynx is a common opening for which two mammalian systems? Question 1 options: digestive and circulatory respiratory and pulmonary respiratory and circulatory respiratory and digestive Question 2 (1 point) Gas exchange happens when capillaries drop off carbon dioxide and pick up oxygen at the: Question 2 options: alveoli brochioles larynx bronchi Question 3 (1 point) The heart pumps _________ blood from the right ventricle to the lungs via the pulmonary _________. Question 3 options: oxygenated, arteries deoxygenated, arteries deoxygenated, veins oxygenated, veins. Question 4 (1 point) Absorption of nutrients in the digestive system is made possible due to the millions of ________ lining the inside of the small intestine. Question 4 options: goblet cell villi red blood cell mucosa Question 5 (1 point) The organ of the digestive system that filters the blood and removes toxins is the: Question 5 options: heart lungs liver small instestine