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Biological
Explore aquatic diversity, focusing on the structure, function, and evolutionary connection between organisms.
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Unit List
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The earth is covered with millions of species of living organisms, ranging from tiny microbes to gigantic whales.
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Aquatic plants and algae produce their own food from sunlight and supply much of the planet’s oxygen.
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Most animals are invertebrates. These animals without backbones offer a wide diversity of shapes and lifestyles.
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Fish are some of the most recognizable aquatic organisms in both freshwater and marine habitats.
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Amphibians, reptiles, and birds represent three major groups of vertebrate animals.
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Mammals have adapted to a wide variety of conditions and are perhaps the animal group most familiar to humans.
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You have reached the end of a section in Exploring Our Fluid Earth. Marine Microbes is currently under development.
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