Eoacanthocephala MCQs January 8, 2026September 28, 2024 by u930973931_answers 30 min Score: 0 Attempted: 0/30 Subscribe 1. Eoacanthocephala are primarily classified as: (A) Cnidarians (B) Arthropods (C) Acanthocephala (D) Annelids 2. The main characteristic of Eoacanthocephala is their: (A) Segmented body plan (B) Complex nervous system (C) Presence of a proboscis with spines (D) Shell-like structure 3. Eoacanthocephala primarily inhabit: (A) Freshwater environments (B) Marine environments (C) Terrestrial environments (D) All of the above 4. The life cycle of Eoacanthocephala typically involves: (A) Direct development (B) Multiple hosts (C) Asexual reproduction (D) Simple binary fission 5. The larval stage of Eoacanthocephala is called: (A) Cystacanth (B) Trochophore (C) Miracidium (D) Metacestode 6. Eoacanthocephala are known to parasitize primarily: (A) Invertebrates (B) Birds (C) Mammals (D) Fish 7. The body of Eoacanthocephala is characterized by: (A) Segmentation (B) A coelomic cavity (C) Acoelomate structure (D) A distinct head region 8. Eoacanthocephala reproduce through: (A) Sexual reproduction (B) Budding (C) Fragmentation (D) Binary fission 9. The primary function of the proboscis in Eoacanthocephala is to: (A) Attach to the host (B) Capture prey (C) Aid in locomotion (D) Digest food 10. Eoacanthocephala can be identified by their: (A) Elongated bodies with hooks (B) Unique reproductive structures (C) Bright colors (D) Ability to regenerate 11. The eggs of Eoacanthocephala are typically found in: (A) Soil (B) Water (C) Air (D) Host tissues 12. The primary host for Eoacanthocephala is usually: (A) An invertebrate (B) A bird (C) A mammal (D) A reptile 13. Eoacanthocephala have a body wall that is: (A) Muscular (B) Chitinous (C) Soft and gelatinous (D) Rigid 14. The digestive system of Eoacanthocephala is: (A) Absent (B) Incomplete (C) Complete (D) Very complex 15. The term “acanth” in Eoacanthocephala refers to: (A) Spine (B) Hook (C) Tentacle (D) Muscle 16. Eoacanthocephala can be found in which type of ecological niche? (A) Aerial (B) Terrestrial (C) Aquatic (D) Subterranean 17. The primary feeding method of Eoacanthocephala is: (A) Filter feeding (B) Absorption through the skin (C) Parasitic feeding (D) Predation 18. The life stages of Eoacanthocephala are typically: (A) Limited to adult stages only (B) Well-defined with several larval forms (C) Asexual throughout (D) Fully developed at hatching 19. Eoacanthocephala are often studied for their: (A) All of the above (B) Medical relevance (C) Evolutionary insights (D) Ecological significance 20. The larval form of Eoacanthocephala is typically: (A) Parasitic in intermediate hosts (B) Non-parasitic (C) Free-living (D) Inactive 21. Eoacanthocephala are primarily associated with which type of ecosystem? (A) Freshwater (B) All types (C) Terrestrial (D) Marine 22. Eoacanthocephala have been found to: (A) Have no impact on ecosystems (B) Be beneficial for host species (C) Impact fish populations negatively (D) Be primary producers 23. The primary research interest in Eoacanthocephala often includes their role as: (A) Agents of disease in hosts (B) Indicators of environmental health (C) All of the above (D) Sources of new medicines 24. The anatomy of Eoacanthocephala typically features: (A) A well-developed exoskeleton (B) A simple body structure (C) Specialized respiratory organs (D) A complex organ system 25. Eoacanthocephala can be distinguished from other parasites by their: (A) Habitat preferences (B) Feeding habits (C) Mode of attachment (D) Reproductive strategies 26. The ecological role of Eoacanthocephala includes: (A) Symbiosis (B) Parasitism (C) Decomposition (D) All of the above 27. The primary threat posed by Eoacanthocephala to their hosts is: (A) Nutritional deficiency (B) All of the above (C) Disease transmission (D) Physical damage 28. Eoacanthocephala are part of which ecological food chain level? (A) Parasites (B) Primary consumers (C) Secondary consumers (D) Primary producers 29. The characteristic feature of the Eoacanthocephala’s proboscis aids in: (A) Locomotion (B) Respiration (C) Digestion (D) Attachment to the host 30. Eoacanthocephala contribute to ecological studies by: (A) All of the above (B) Showing environmental changes (C) Being model organisms for research (D) Indicating host health