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Invertebrate Classification

Invertebrates represent 97% of animal species and are organized into 30 phyla.

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Hiding In Plain Sight
teacher Contributed

Hiding In Plain Sight

Student Exploration

Where Did That Go?

Being not seen is a useful trait in a world of predators and prey. But how do you hide in a world without bounds? Find out here how some organisms have met this challenge in the mid-water of the worlds oceans.

Extension Investigation

Use the below resources to answer the following questions

  1. How is the mid-water defined?
  2. What colors are used for camouflage in the mid-water?
  3. Why are these specific colors used?
  4. Why do some animals use red “searchlights”? Do these searchlights benefit organisms other than the fish with the flashlight?
  5. What problems to internal organs pose for transparent organisms?
  6. What are nekton?

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