Phylum Porifera MCQs

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1. Porifera are commonly known as:





2. Which of the following is a characteristic feature of Porifera?





3. The body of a sponge is supported by:





4. The main function of choanocytes in Porifera is to:





5. Which structure is responsible for water flow in sponges?





6. Sponges are primarily found in:





7. The simplest body form of sponges is:





8. Sponges reproduce asexually through:





9. Which of the following is NOT a function of sponges?





10. The skeletal structure of sponges may include:





11. The most complex sponge body type is:





12. The opening at the top of a sponge is the:





13. Cells responsible for producing gametes in sponges are:





14. The primary mode of nutrition in sponges is:





15. Asexual reproduction in sponges mainly includes:





16. The larval form of sponges is usually:





17. Filter feeders are organisms that:





18. The color of sponges is mostly due to:





19. Which statement about Porifera is TRUE?





20. The spongocoel functions as:





21. Most sponges are:





22. Sponges typically exhibit:





23. Sponge classification is mainly based on:





24. Gas exchange in sponges occurs through:





25. Which of the following is NOT a sponge class?





26. Sponges filter large volumes of water because of:





27. Most sponges are:





28. Hexactinellida sponges have spicules made of:





29. The mesohyl layer functions as:





30. A major ecological role of sponges is:





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