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CRASH of Two Species!

CRASH of Two Species!. Compare these two organisms. Komodo Dragon. Coelacanth fish. Compare these 3 to the previous slide. Hissing Cockroach. Horseshoe Crab. And…. They are all . Living Fossils!!. Watch the video. Answer these questions.

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CRASH of Two Species!

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  1. CRASH of Two Species!

  2. Compare these two organisms Komodo Dragon Coelacanth fish

  3. Compare these 3 to the previous slide Hissing Cockroach Horseshoe Crab And…

  4. They are all Living Fossils!!

  5. Watch the video

  6. Answer these questions • What are some adaptations that have helped the horseshoe crab to survive for 350 million years? • (Its hard shell deters most predators; copper-based blue blood clots if bacteria tries to enter its body; compound eyes on top of shell to see the cycles of the moon; each crab lays thousands of eggs.) • How does the red knot prepare for its long migration from South America to the Arctic? • (In South America, red knots feed for days on end to bulk up their bodies; they molt and grow new feathers that enhance their flying abilities. Then, further north, in Delaware Bay, they eat as many as 18,000 horseshoe crab eggs a day on the beach.) • What are some of the reasons why the horseshoe crab population is declining? • (Fishermen were overharvesting horseshoe crabs to use as bait.) • Do you think the red knot would survive if the horseshoe crab became extinct? Why or why not?

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