Write a brief introduction introducing the topic of evolution and adaptations, leading into a thesis statement. Describe and define natural selection and evolution Briefly, provide evidence that supports evolution. Describe at least two adaptations of the digestive systems of carnivores and herbivores and how these adaptations provide benefit to the animal. Describe one adaptation of the mammalian heart for land dwelling compared to the fish heart and why these adaptations are necessary for life on land. Describe one adaptation of the avian (bird) respiratory system and what advantages an avian lung has over a mammalian lung. Describe at least two adaptations of the excretory system of animals. One should compare animals in arid environments to those in temperate environments, focusing on the kidney. The second adaptation should focus on reptiles and birds, and the differences in nitrogen excretion. Why is the form of nitrogen excreted by birds and reptiles different from mammals? Your conclusion should tie up the paper and make reference to some of the quotations listed at the beginning of this assignment.
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