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21 maj 2024 · Fish are aquatic vertebrates that typically have gills, fins, and a streamlined body. They inhabit diverse environments, from freshwater rivers and lakes to salty oceans and deep seas.
Fish quiz for 2nd grade students. Find other quizzes for Biology and more on Quizizz for free!
Fish have a circulatory system with a two-chambered heart. Their digestive system is complete and includes several organs and glands. Jawed fish use their jaws and teeth to grind up food before passing it to the rest of the digestive tract. This allows them to consume larger prey. Fish also have a centralized nervous system with a brain. Fish ...
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