Udeonychophora MCQs December 4, 2025September 30, 2024 by u930973931_answers 30 min Score: 0 Attempted: 0/30 Subscribe 1. What are Udeonychophora commonly known as? (A) Earthworms (B) Velvet worms (C) Segmented worms (D) Flatworms 2. Which habitat do Udeonychophora primarily inhabit? (A) Terrestrial (B) Freshwater (C) Marine (D) Aerial 3. Udeonychophora have which type of body symmetry? (A) Radial symmetry (B) Asymmetry (C) Bilateral symmetry (D) Trilateral symmetry 4. The body covering of Udeonychophora is made of: (A) Scales (B) Chitinous cuticle (C) Shell (D) Exoskeleton 5. What is the primary method of locomotion in Udeonychophora? (A) Crawling (B) Swimming (C) Gliding (D) Burrowing 6. Which of the following structures helps Udeonychophora in locomotion? (A) Limbs (B) Tentacles (C) Cilia (D) Setae 7. Udeonychophora primarily feed on: (A) Small invertebrates (B) Detritus (C) Plant matter (D) Algae 8. The respiratory system of Udeonychophora consists of: (A) Gills (B) Diffusion (C) Lungs (D) Tracheae 9. What type of circulatory system do Udeonychophora possess? (A) No circulatory system (B) Closed circulatory system (C) Open circulatory system (D) Simple circulatory system 10. Which of the following is a characteristic feature of Udeonychophora? (A) Segmented body (B) Soft, flexible body (C) Hard exoskeleton (D) High metabolic rate 11. Udeonychophora reproduce primarily through: (A) Asexual reproduction (B) Budding (C) Sexual reproduction (D) Fragmentation 12. What is the developmental strategy of Udeonychophora? (A) Indirect development (B) Direct development (C) Both A and B (D) None of the above 13. Which of the following is NOT a known genus of Udeonychophora? (A) Peripatus (B) Eoperipatus (C) Tardigrada (D) Onychophora 14. What is the primary role of the slime glands in Udeonychophora? (A) Locomotion (B) Defense (C) Digestion (D) Respiration 15. The nervous system of Udeonychophora is characterized by: (A) A centralized brain (B) A nerve net (C) A simple ganglion (D) Absent 16. Udeonychophora are most closely related to which of the following groups? (A) Arthropods (B) Annelids (C) Mollusks (D) Echinoderms 17. The eyes of Udeonychophora are generally: (A) Compound eyes (B) Multilayered (C) Absent (D) Simple eyes (ocelli) 18. What is the main ecological role of Udeonychophora? (A) Primary producers (B) Herbivores (C) Decomposers (D) Predators 19. Udeonychophora are characterized by having: (A) A hard shell (B) Paired appendages (C) No legs (D) Unjointed legs 20. The diet of Udeonychophora consists mainly of: (A) Bacteria (B) Fungi (C) Small arthropods (D) Detritus 21. The habitat of Udeonychophora is primarily found in: (A) Grasslands (B) Deserts (C) Tropical rainforests (D) Arctic regions 22. What type of eyes do Udeonychophora possess? (A) Compound eyes (B) No eyes (C) Simple eyes (D) Photo-receptive cells 23. The reproductive strategy of Udeonychophora typically involves: (A) Internal fertilization (B) External fertilization (C) Asexual budding (D) Parthenogenesis 24. The Udeonychophora have which of the following feeding adaptations? (A) Siphon (B) Filter feeding (C) Proboscis (D) Rasping mouthparts 25. The presence of chitin in Udeonychophora is found in: (A) Their digestive tract (B) Their exoskeleton (C) Their cuticle (D) Their nervous system 26. Udeonychophora can be found in which of the following ecosystems? (A) Marine ecosystems (B) Terrestrial ecosystems (C) Freshwater ecosystems (D) All of the above 27. The body of Udeonychophora is divided into: (A) Segments (B) Regions only (C) Segments and regions (D) None of the above 28. Udeonychophora are important for studying: (A) None of the above (B) Marine biology (C) Plant ecology (D) Evolutionary biology 29. The conservation status of many Udeonychophora species is: (A) Least Concern (B) Vulnerable (C) Critically Endangered (D) Data Deficient 30. Udeonychophora have a unique defense mechanism involving: (A) Bioluminescence (B) Toxicity (C) Slime secretion (D) Color change