97. One difference between the erythrocytes of mammals and other vertebrates is

Question

97. One difference between the erythrocytes of mammals and other vertebrates is a. mammal erythrocytes lack nuclei. b. mammal erythrocytes respond to changes in water concentration. mammal erythrocytes are oval with swollen centers. other vertebrates do not have erythrocytes. other vertebrates use a respiratory pigment other than hemoglobin. d. e. 98 A vein always carries a. blood to the heart b. blood from the heart @ oxygen-rich blood. d. oxygen-poor blood. e. blood rich in carbon dioxide. 99. The primary advantage of a four-chambered heart is that it prevents mixing of oxygenated and deoxygenated blood prevents deoxygenated blood from entering the heart allows better flow of blood to the tissues prevents mixing of oxygenated and deoxygenated blood and allows tissues to be bypassed prevents mixing of oxygenated and deoxygenated blood and allows better flow of blood to the tissues a. 6. c. d. e. 100. The hepatic portal system is a special blood circuit between the and a. liver, spleen b, kidney; liver ?. liver; intestine d. kidney; heart e. spleen; heart

Explanation / Answer

97.c)mammal erythrocytes are oval with swollen centers

98.d) oxygen poor blood.

99.a)prevents mixing of oxygenated and deoxygenated blood.

100.c)liver;intestine

102.c)the partial pressure of oxygen decreases

103,a)alkaline mucus and epithelial cells

104.d)mechanically digesting fats

105.e)It secretes digestive enzymes

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