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Questions and Answers
What is the first type of fish to have evolved?
What is the first type of fish to have evolved?
- Lampreys
- Hagfish
- Sharks
- Sea Squirts (correct)
How do sharks and rays stay in the water?
How do sharks and rays stay in the water?
- By using their swim bladders
- By using their fins and bodies (correct)
- By using their lungs
- By using their eyes
What is the most dangerous effect of stonefish poison?
What is the most dangerous effect of stonefish poison?
- Swelling
- Pain
- Necrosis
- Death (correct)
How do flying fish move?
How do flying fish move?
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What type of fishing method can collapse the food chain?
What type of fishing method can collapse the food chain?
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Study Notes
- Fishes have a great diversity in their center of diversity, with marine and freshwater fish species having their own special habitats.
- The first fishes evolved from sea squirts.
- Lampreys can be eaten in Europe, and hagfish are the only fish with a spine but no skull.
- Cleaner fishes protect other fishes from disease.
- Sharks and rays don't have swim bladders, so they use their fins and bodies to stay in the water.
- Sharks and rays don't have lungs, so they need to constantly swim to maintain a comfortable depth in the water.
- Stonefish poison can cause pain, swelling, necrosis, and even death in severe cases.
- Flying fish don't actually fly, they glide at high speeds using the wind.
- Tetrapods evolved from fishes and first evolved in the Devonian Period.
- Bottom trawling is a damaging fishing method that can collapse the food chain.
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