Electric eels are dependent on air breathing. They take up oxygen from the air that they gulp into their mouths and then blow back out. In what way are their mouths similar to gills? A) They both bring oxygen against its concentration gradient from the lower levels in the water or air to the higher levels in the blood. B) They both have large numbers of capillary beds very close to the skin. C) They both have large numbers of microvilli in their respiratory membrane to provide ATP for active transport of oxygen. D) ALL of these are correct. 2) Which of these accurately describes the buccopharyngeal pumping mechanism teleosts use to breathe? A) The volume of oral cavity is rapidly expanded with the mouth closed and the operculum open. B) The volume of the oral cavity is rapidly compressed with the mouth closed and the operculum open. C) Water from the surroundings is sucked into the gills during inspiration and blown back out during expiration. D) ALL of these are correct.
Electric eels are dependent on air breathing. They take up oxygen from the air that they gulp into their mouths and then blow back out. In what way are their mouths similar to gills? A) They both bring oxygen against its concentration gradient from the lower levels in the water or air to the higher levels in the blood. B) They both have large numbers of capillary beds very close to the skin. C) They both have large numbers of microvilli in their respiratory membrane to provide ATP for active transport of oxygen. D) ALL of these are correct. 2) Which of these accurately describes the buccopharyngeal pumping mechanism teleosts use to breathe? A) The volume of oral cavity is rapidly expanded with the mouth closed and the operculum open. B) The volume of the oral cavity is rapidly compressed with the mouth closed and the operculum open. C) Water from the surroundings is sucked into the gills during inspiration and blown back out during expiration. D) ALL of these are correct.
Chapter38: Reproduction And Development
Section: Chapter Questions
Problem 1CT
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1) Electric eels are dependent on air breathing. They take up oxygen from the air that they gulp into their mouths and then blow back out. In what way are their mouths similar to gills?
A) They both bring oxygen against its concentration gradient from the lower levels in the water or air to the higher levels in the blood.
B) They both have large numbers of capillary beds very close to the skin.
C) They both have large numbers of microvilli in their respiratory membrane to provide ATP for active transport of oxygen.
D) ALL of these are correct.
2) Which of these accurately describes the buccopharyngeal pumping mechanism teleosts use to breathe?
A) The volume of oral cavity is rapidly expanded with the mouth closed and the operculum open.
B) The volume of the oral cavity is rapidly compressed with the mouth closed and the operculum open.
C) Water from the surroundings is sucked into the gills during inspiration and blown back out during expiration.
D) ALL of these are correct.
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