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This one is for all of the biology students out there who think they have a firm grip on the properties that make the numerous components of an ecosystem either biotic or abiotic. Do you really think you know the difference? Take this quiz and we'll be the judges of that!

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PRACTICE: Sorting Abiotic and Biotic Factors

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PRACTICE: Sorting Abiotic and Biotic Factors

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Sort the following into abiotic or biotic factors.

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Crabs Trade Shells in the Strangest Way | BBC Earth

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Flying Dragons Of The Jungle | Planet Earth II

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Costa Rican jungle in 360° - Planet Earth II: Jungles - BBC

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360° Antarctica - Unexpected Snow | National Geographic

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The Fight to Save Threatened Species (360 Video)

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MythBusters: Shark Shipwreck (360 Video)

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SHARK WEEK 2016 | Starts Sun. June 26 8|7c For more immersive experiences, head to http://DiscoveryVR.com. Explore the sunken wreckage of the Ray of Hope with the MythBusters in Virtual Reality. Subscribe to Discovery: http://www.youtube.com/subscription_center?add_user=discoverynetworks Join us on Facebook: https://www.facebook.com/Discovery Follow on Twitter: https://twitter.com/Discovery

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360° Red Kite Bird Feeding Frenzy 4k | BBC Earth Unplugged

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Glow Worm Caves of New Zealand in 360° | National Geographic