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Question: 1 which of the following are the only vert ebrates...

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1. Which of the following are the only vert ebrates in which blood flows directly from s without first returning to the heart? the respiratory organs to body tissue A. Amphibians. B. Birds. C. Fishes D. Mammals. E. Reptiles. 2. Organisms in which a circulating body fluid is distant from the fluid that directhy surrounds the bodys cells are likely to have A. An open circulatory system. B. A closed circulatory system. C. A gastrovascular cavity. D. Branched tracheae. E. Hemolymph. 3. A swim bladder allows a fish to A) regulate its water content in seawater B) regulate its salt content in seawater C) regulate its salt content in freshwater. D) control its buoyancy in water. E) tolerate changes in water press 4. The monotremes are classified as mammals because they A) are endoderms B) are carnivores C) are omnivores D) have mammary glands E) give birth to live young rather than lay 5. A Characteristic of hominids is A) larger brain B) bipedalism C) nighttime activity D) monogamy E) both A and
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