Q1. Which of the following is an example of a cephalochordate?A. AscidiaB. BranchiostomaC. PetromyzonD. Myxine
Q2. Which of the following statements about reptiles is incorrect?A. They have a dry, cornified skin with epidermal scalesB. They have an incomplete double circulationC. They excrete urea as the primary nitrogenous wasteD. Crocodiles have a four-chambered heart
Q3. Which type of body symmetry is found in echinoderms during their larval stage?A. Radial symmetryB. Bilateral symmetryC. AsymmetryD. None of the above
Q4. Which structure in hemichordates is functionally similar to the notochord?A. Proboscis glandB. StomochordC. NephridiaD. Choanocytes
Q5. Which characteristic is unique to phylum Ctenophora?A. Presence of cnidoblastsB. Comb plates for locomotionC. MetamerismD. Chitinous exoskeleton
Q7. Which of the following is a correct feature of platyhelminthes?A. They are diploblastic and acoelomateB. They have a well-developed circulatory systemC. They exhibit bilateral symmetryD. They have a complete digestive system
Q8. Which of the following structures is associated with osmoregulation in platyhelminthes?A. Malpighian tubulesB. NephridiaC. Flame cellsD. Green glands
Q9. Which of the following statements about cartilaginous fishes is incorrect?A. They have a cartilaginous skeletonB. They possess a swim bladderC. They have placoid scalesD. They have a two-chambered heart
Q10. Which of the following features is incorrect regarding mammals?A. They possess a diaphragm for respirationB. They have an incomplete double circulationC. They are warm-bloodedD. They have heterodont dentition