Marine Biology I

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Across
  1. 1. a cold-blooded reptile with a hard bony shell that covers its body for protection
  2. 3. a small marine animal, the hard skeleton it builds, or a bright pinkish-orange color
  3. 7. the scientific study of plants, animals, and other organisms that live in the ocean and other saltwater environments
  4. 8. a loose, granular natural material made of finely divided rock and mineral particles
  5. 10. rise and fall of the water
  6. 12. a wetland with small shrubs and stunted trees,often growing on a thick mat of moss
  7. 13. a natural network of interconnected food chains that graphically represents feeding relationships and energy flow within an ecological community
  8. 14. the science and practice of classifying, naming, and organizing living things or other items into structured, hierarchical groups
  9. 16. a wetland with grsses, sedges, rushes, and other non-woody plants
  10. 17. a wetland with trees
  11. 18. a linear sequence of organisms in an ecosystem that shows how energy and nutrients move as one organism eats another
Down
  1. 2. the measure of the concentration of dissolved salts, such as sodium chloride, in a body of water
  2. 3. continuous, directed movements of water driven by wind, gravity, Earth's rotation, and changes in water density
  3. 4. a community of living organisms interacting with their non-living physical environment as a single, self-sustaining system
  4. 5. officially renamed the Gulf of America in the United States on January 20, 2025
  5. 6. a shallow body of water separated from a larger body of water
  6. 9. small, heterotrophic animals and immature life stages that drift with water currents in oceans, lakes, and ponds
  7. 11. a moving ridge or bump on the surface of the water that goes up and down
  8. 15. a continuous body of salt water that covers roughly 71 percent of Earth's surface
  9. 18. A creature with fins and gills that spends its whole life in water