Q1. Which of the following groups has a closed circulatory system?A. ArthropodsB. MolluscsC. AnnelidsD. Echinoderms
Q2. Which of the following is an example of a hermaphroditic animal?A. FrogB. CockroachC. EarthwormD. Pigeon
Q3. Which of the following statements about cnidarians is incorrect?A. Cnidarians exhibit radial symmetryB. Cnidarians have cnidoblasts for defense and capturing preyC. Cnidarians possess a complete digestive system with mouth and anusD. Cnidarians can exist in both polyp and medusa forms
Q4. Why are hemichordates considered an intermediate group between non-chordates and chordates?A. They possess a true vertebral columnB. They have a stomochord, functionally similar to a notochordC. They show a complete digestive system like arthropodsD. They exhibit radial symmetry as adults
Q5. Which of the following features is incorrect regarding birds?A. They are poikilothermicB. They have a four-chambered heartC. They possess pneumatic bonesD. They lack a urinary bladder
Q6. Which of the following animals possesses flame cells for excretion?A. EarthwormB. PlanariaC. CockroachD. Octopus
Q8. Which of the following statements about birds is incorrect?A. They are oviparousB. They have a diaphragm for respirationC. They have a four-chambered heartD. They have lightweight, pneumatic bones
Q9. Which of the following statements about cyclostomes is incorrect?A. They lack jawsB. They have paired finsC. They are ectoparasitesD. They have a cartilaginous endoskeleton
Q10. Which phylum exhibits both intracellular and extracellular digestion?A. PoriferaB. CnidariaC. PlatyhelminthesD. Arthropoda