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4 Written Questions

3 Multiple Choice Questions

  1. no true tissue
  2. Specialized flagellated cells, choanocytes, move water through and filter food particles from the water
  3. The sponge body is comprised of a couple different cell types that form the outside and inside layers of the body wall.

3 True/False Questions

  1. what do they lack?Sponges are sessile (sedentary), filter feeding animals


  2. • Type of body cavityno true tissue


  3. where does gas exchange occur?Gas exchange and excretion occur via diffusion across individual cell membranes.


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