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College biology practice test MCQ: skeleton of sponges is composed of needle-like structures called with options spicules, ostia, osculum and spongecoel with online global exams' preparation for international tests like MCAT practice test for good MCAT scores. Free study guide is for online learning parazoa quiz with MCQs to practice test questions with answers. Parazoa Video

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MCQ: Skeleton of sponges is composed of needle-like structures called

  1. spicules
  2. ostia
  3. osculum
  4. spongecoel


MCQ: Internal buds which develop into new sponges are called

  1. ostulus
  2. gemmules
  3. ostia
  4. osculum


MCQ: Small pores which help water to enter body of sponges are called

  1. enteron
  2. otia
  3. osculum
  4. stomata


MCQ: Pore-bearing animals are commonly called

  1. sponges
  2. molasses
  3. coral reefs
  4. sea anemone


MCQ: Best commercial sponges are found in warm waters of

  1. Mediterranean sea
  2. ocean
  3. Dead sea
  4. red sea