Digononta MCQs January 8, 2026September 30, 2024 by u930973931_answers 30 min Score: 0 Attempted: 0/30 Subscribe 1. What is a defining characteristic of Digononta? (A) Presence of a single ovary (B) Two ovaries (C) Lack of a foot (D) Presence of a corona 2. In which environment are Digononta primarily found? (A) Marine (B) Freshwater (C) Terrestrial (D) Both marine and terrestrial 3. What is the typical reproductive method for Digononta? (A) Budding (B) Parthenogenesis (C) Sexual reproduction (D) Fragmentation 4. Which structure aids in locomotion for Digononta? (A) Tentacles (B) Pseudopodia (C) Flagella (D) Cilia 5. What is a common name for organisms classified under Digononta? (A) Sea monkeys (B) Copepods (C) Water bears (D) Rotifers 6. Which of the following describes the body structure of Digononta? (A) Radially symmetrical (B) Segmented (C) Unsegmented (D) Bilaterally symmetrical 7. What role do Digononta play in aquatic ecosystems? (A) Consumers and decomposers (B) Primary producers (C) Parasites (D) Keystone species 8. Digononta are part of which larger group of organisms? (A) Annelids (B) Cnidarians (C) Rotifers (D) Mollusks 9. Which reproductive strategy is common among Digononta? (A) Sexual and asexual reproduction (B) Asexual reproduction only (C) Budding only (D) Fragmentation 10. What is the function of the corona in Digononta? (A) Attachment to substrates (B) Excretion (C) Feeding (D) Locomotion 11. In terms of symmetry, Digononta typically exhibit what type? (A) Bilateral symmetry (B) Radial symmetry (C) Asymmetrical (D) Pentaradial symmetry 12. What is a notable feature of Digononta’s life cycle? (A) No larval stages (B) Direct development (C) Presence of a larval stage (D) Only adult forms 13. Which of the following genera is classified under Digononta? (A) Brachionus (B) Lecane (C) Asplanchna (D) Monostyla 14. What type of feeding mechanism do Digononta utilize? (A) Predatory feeding (B) Filter feeding (C) Parasitic feeding (D) Absorptive feeding 15. What is the typical habitat for Digononta? (A) Terrestrial environments (B) Marine environments (C) Freshwater environments (D) Brackish water 16. Which of the following statements about Digononta is true? (A) They possess two reproductive structures (B) They have a complex nervous system (C) They are exclusively marine (D) They lack cilia 17. What is the primary mode of locomotion for Digononta? (A) Swimming using flagella (B) Crawling on surfaces (C) Cilia movement (D) Floating passively 18. In terms of ecological interaction, Digononta primarily serve as what? (A) Prey for larger organisms (B) Predators (C) Parasites (D) Decomposers only 19. What is the primary function of the foot in Digononta? (A) Respiration (B) Locomotion (C) Feeding (D) Attachment to substrates 20. Which of the following statements about Digononta is false? (A) They exclusively inhabit saltwater (B) They have a complex life cycle (C) They can reproduce sexually and asexually (D) They are important in nutrient cycling 21. Digononta can often survive harsh conditions by entering which state? (A) Dormant state (B) Resting state (C) Larval state (D) Adult state 22. What type of morphological diversity do Digononta exhibit? (A) Only two body types (B) Uniform body shape (C) Lack of morphological variation (D) High diversity in body forms 23. Which of the following describes the feeding strategy of Digononta? (A) Absorbing nutrients directly from the water (B) Hunting and capturing prey (C) Filtering small particles from the water (D) Grazing on algae 24. In terms of ecological roles, Digononta contribute to what process in aquatic ecosystems? (A) Nutrient cycling (B) Primary production (C) Sediment formation (D) Water purification 25. What type of structure do Digononta have for sensory perception? (A) Sensory bristles (B) Compound eyes (C) Tentacles (D) Antennae 26. Which class of Rotifera includes organisms with two gonads? (A) Monogononta (B) Digononta (C) Bdelloidea (D) Seisonidea 27. Digononta are known for their ecological role. Which of the following is NOT a role they typically play? (A) Decomposers (B) Primary producers (C) Consumers (D) Prey 28. Which of the following statements is true about Digononta’s reproductive strategy? (A) They only reproduce asexually (B) They reproduce exclusively through budding (C) They can reproduce sexually or asexually (D) They have no reproductive structures 29. What ecological significance do Digononta have in freshwater systems? (A) They are invasive species (B) They help control algal populations (C) They are primary producers (D) They are predators of larger organisms 30. In terms of habitat, Digononta thrive in which of the following? (A) Deep sea trenches (B) Intertidal zones (C) Ponds and lakes (D) Sandy beaches