Phylum Entoprocta MCQs December 5, 2025September 28, 2024 by u930973931_answers 30 min Score: 0 Attempted: 0/30 Subscribe 1. What is the defining characteristic of Entoprocta? (A) Possession of a true coelom (B) Anus located within the tentacles (C) Body plan with a lophophore (D) Segmented body 2. Entoprocta are primarily found in which type of environment? (A) Marine (B) Terrestrial (C) Freshwater (D) Atmospheric 3. The body of an entoproct is typically composed of which two main parts? (A) Abdomen and cephalothorax (B) Head and thorax (C) Peduncle and calyx (D) Shell and mantle 4. Which of the following structures do entoprocts use for feeding? (A) Tube feet (B) Tentacles (C) Cilia (D) Gills 5. What type of body symmetry do entoprocts exhibit? (A) Asymmetrical (B) Radial symmetry (C) Bilateral symmetry (D) Pentaradial symmetry 6. Which of the following is NOT a characteristic of Entoprocta? (A) Anus within the tentacles (B) Presence of a chitinous exoskeleton (C) Filter feeding (D) Colonial or solitary forms 7. The feeding mechanism of entoprocts primarily involves: (A) Parasitism (B) Predation (C) Filter feeding (D) Herbivory 8. Entoprocts are most closely related to which other group of animals? (A) Bryozoans (B) Cnidarians (C) Mollusks (D) Arthropods 9. The reproductive strategy of entoprocts typically involves: (A) Asexual reproduction only (B) Sexual reproduction only (C) Budding only (D) Both asexual and sexual reproduction 10. Which of the following is a common habitat for entoprocts? (A) In sandy beaches (B) In deep ocean trenches (C) On rocky substrates (D) In freshwater ponds 11. The larvae of entoprocts are typically: (A) Sessile (B) Benthic (C) Planktonic (D) Parasitic 12. Entoprocts can be found in what forms? (A) Solitary (B) Colonial (C) Only colonial (D) Both solitary and colonial 13. Entoprocts belong to which larger group of animals? (A) Protostomia (B) Radiata (C) Bilateria (D) Deuterostomia 14. Which of the following best describes the size of entoprocts? (A) Large and visible (B) Microscopic (C) Gigantic (D) Small, usually less than a few millimeters 15. Entoprocts are primarily classified based on which criterion? (A) Body shape (B) Habitat (C) Feeding method (D) Tentacle arrangement 16. The skeleton of entoprocts is primarily composed of: (A) Soft tissue only (B) Chitin (C) Silica (D) Calcium carbonate 17. Which of the following is a significant ecological role of entoprocts? (A) Predators in marine ecosystems (B) Decomposers (C) Primary producers (D) Bioindicators of environmental health 18. Entoprocts exhibit which type of feeding method? (A) Suspension feeding (B) Herbivorous (C) Chemoautotrophic (D) Carnivorous 19. Which type of organism is known to associate with entoprocts? (A) Fungi (B) Algae (C) Parasites (D) None of the above 20. The structure of an entoproct's tentacles is primarily used for: (A) Defense (B) Movement (C) Respiration (D) Capturing food 21. Entoprocts can reproduce asexually through: (A) Fission (B) All of the above (C) Fragmentation (D) Budding 22. The calyx of entoprocts serves as: (A) An attachment structure (B) A feeding structure (C) A reproductive organ (D) A protective covering 23. Which of the following describes the developmental stages of entoprocts? (A) Direct development (B) Indirect development with a larval stage (C) Metamorphic development (D) None of the above 24. What is the primary mode of locomotion for adult entoprocts? (A) Swimming (B) Crawling (C) Burrowing (D) They are sessile and do not move 25. The ecological niche of entoprocts includes: (A) Primary producers in food webs (B) All of the above (C) Hosts for symbiotic organisms (D) Competitors with other sessile organisms 26. Which of the following is a common form of entoproct? (A) Both B and C (B) Colonial zooids (C) Solitary zooids (D) Lophophorates 27. Entoprocts are often confused with which other group due to similar features? (A) Cnidarians (B) Mollusks (C) Bryozoans (D) Annelids 28. The mouth of entoprocts is located: (A) On the aboral side (B) Outside the body (C) At the base of the stalk (D) Within the circle of tentacles 29. The feeding mechanism of entoprocts allows them to capture: (A) Particulate matter in the water (B) Large prey (C) Macroscopic organisms (D) None of the above 30. Entoprocts are part of which taxonomic classification? (A) Phylum Arthropoda (B) Phylum Echinodermata (C) Phylum Cnidaria (D) Phylum Entoprocta