SI worksheet 14 answers - eatingsparrow a b c ,thesparrowwo

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SI worksheet 14 – Animal nutrition and gas exchange  How would you expect the digestive system of a hawk to compare with that of a seed- eating sparrow? a. The hawk would have a larger gastrovascular cavity  b. The sparrows digestive system would be longer  c. The hawk would have a gizzard, the sparrow would not  d. The hawks digestive system would be longer  e. The sparrow would have a gizzard, the hawk would not  Which of the following is an adaptation to a carnivorous diet? a. Sharp, pointed teeth  b. Enlarged cecum  c. Longer intestine  d. Reingestion of feces  e. Large populations of bacteria and protists in in special fermentation chambers in  the alimentary canal  An open circulatory system _____. a. is less common in crabs and beetles than in mice and snakes b. unlike a closed circulatory system, does not rely on muscle contraction c. allows interstitial fluid to mix freely with vascular fluid d. restricts the backflow of blood by valves in the trachea e. has no valves The function of the pulmonary circuit in a dog is to _____. a. carry oxygen and nutrients to tissues where they are needed b. retrieve waste products from the body tissues c. carry blood through the heart, lungs, and all of the body tissues d. carry carbon dioxide to the lungs and pick up oxygen from the lungs e. carry absorbed nutrients from the small intestine to the liver In a fish, blood circulates through _____, whereas in a mammal, it circulates through  _____.
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