Vertebrate Biology mcqs of animals January 8, 2026March 27, 2024 by u930973931_answers 14 min Score: 0 Attempted: 0/14 Subscribe 1. Which of the following is not a class of vertebrates? (A) Mammalia (B) Amphibia (C) Arachnida (D) Reptilia 2. What is the primary characteristic that distinguishes vertebrates from invertebrates? (A) Presence of a true coelom (B) Presence of a backbone or spinal column (C) Radial symmetry (D) Exoskeleton made of chitin 3. The presence of mammary glands is a characteristic feature of which class of vertebrates? (A) Amphibia (B) Aves (C) Reptilia (D) Mammalia 4. Which of the following is not a characteristic of mammals? (A) Presence of hair or fur (B) Warm-bloodedness (C) Ability to lay eggs (D) Presence of mammary glands 5. Which class of vertebrates is characterized by the presence of feathers and beaks? (A) Mammalia (B) Amphibia (C) Reptilia (D) Aves 6. What is the primary function of the amniotic egg in reptiles and birds? (A) Protection of the embryo (B) Gas exchange (C) Nutrient storage (D) Waste elimination 7. Which of the following is not a characteristic of birds? (A) Cold-bloodedness (B) Endothermy (C) Three-chambered heart (D) Feathers 8. The lateral line system is a sensory organ found in which class of vertebrates? (A) Mammalia (B) Aves (C) Amphibia (D) Pisces (Fish) 9. Which of the following is not a characteristic of reptiles? (A) Live birth (B) Dry, scaly skin (C) Three-chambered heart (D) Ectothermy 10. What is the primary function of the swim bladder in fish? (A) Gas exchange (B) Buoyancy control (C) Digestion (D) Thermoregulation 11. Which of the following is not a characteristic of amphibians? (A) Moist, permeable skin (B) Terrestrial eggs with shells (C) Presence of lungs for respiration (D) Ectothermy 12. Which of the following is not a characteristic of cartilaginous fish? (A) Bony skeleton (B) Presence of jaws (C) Internal fertilization (D) Placoid scales 13. What is the primary function of the Jacobson’s organ in snakes? (A) Vision (B) Hearing (C) Balance (D) Smell 14. Which class of vertebrates is characterized by the presence of a notochord, dorsal nerve cord, pharyngeal slits, and a post-anal tail during some stage of their development? (A) Amphibia (B) Aves (C) Mammalia (D) Chondrichthyes