Q1. Which phylum exhibits indirect development with a trochophore larval stage?A. AnnelidaB. EchinodermataC. ArthropodaD. Platyhelminthes
Q2. Which of the following features is incorrect regarding echinoderms?A. They have an endoskeleton made of calcareous ossiclesB. They have a closed circulatory systemC. They show radial symmetry in adultsD. They use a water vascular system for locomotion
Q4. Which of the following is an example of an oviparous mammal?A. MacropusB. OrnithorhynchusC. FelisD. Canis
Q5. Which of the following groups has a closed circulatory system?A. EchinodermataB. ArthropodaC. AnnelidaD. Mollusca
Q6. Which of the following is a correct feature of reptiles?A. They have moist, glandular skinB. They excrete ammonia as their primary nitrogenous wasteC. They lay amniotic eggsD. They have a four-chambered heart in all species
Q7. Which of the following statements about amphibians is incorrect?A. They have a three-chambered heartB. They are poikilothermic (cold-blooded)C. They exclusively respire through lungsD. They have a dual mode of life, living in water and on land
Q8. Which of the following is a distinguishing characteristic of phylum Hemichordata?A. Notochord present throughout lifeB. Body divided into proboscis, collar, and trunkC. Jointed appendagesD. Water vascular system
Q9. Which structure in amphibians allows them to hear airborne sounds?A. Lateral line systemB. TympanumC. SpiraclesD. Operculum
Q10. Which of the following statements about reptiles is incorrect?A. They have a three-chambered heart, except crocodilesB. They have moist, glandular skinC. They are ectothermic (cold-blooded)D. They excrete uric acid as their primary nitrogenous waste