Question

Complete the sentence with a suitable option:
The author describes the behavior of the circulatory system of sea snakes when they are removed from the ocean (see lines 17-20) primarily in order to _________________

• A. Illustrate what would occur in the circulatory system of terrestrial snakes without adaptations that enable them to regulate their blood pressure in vertical orientations.
• B. Explain why arboreal snakes in vertical orientations must rely on muscle contractions to restore blood pressure to the brain.
• C. Illustrate the effects of circulatory failure on the behavior of arboreal snakes.
• D. Illustrate the superiority of the circulatory system of the terrestrial snake to that of the sea snake.
• E. Explain how changes in spatial orientation can adversely affect the circulatory system of snakes with hearts located in relatively close proximity to their heads.

Answer 1

The correct option is A Illustrate what would occur in the circulatory system of terrestrial snakes without adaptations that enable them to regulate their blood pressure in vertical orientations.

"Terrestrial snakes, in particular, exhibit adaptations that aid in circulating blood against the force of gravity. The problem confronting terrestrial snakes is best illustrated by what happens to sea snakes when removed from their supportive medium." These statement best support option A as the answer.