Q1. Which of the following animals is an example of a urochordate?A. BranchiostomaB. AscidiaC. PetromyzonD. Myxine
Q2. Which of the following is a key adaptation seen in parasitic helminths?A. Well-developed digestive systemB. Highly developed nervous systemC. High reproductive capacityD. Presence of jointed appendages
Q3. Which of the following statements about cyclostomes is correct?A. They have jawsB. They possess paired finsC. They are ectoparasitesD. They have a bony endoskeleton
Q4. Which of the following structures is responsible for osmoregulation in crustaceans?A. Malpighian tubulesB. NephridiaC. Green glandsD. Flame cells
Q5. What is the function of cnidoblasts in cnidarians?A. LocomotionB. ReproductionC. Defense and capturing preyD. Digestion
Q6. Which of the following is incorrect regarding mammals?A. They are homeothermic (warm-blooded)B. They possess mammary glandsC. All mammals are viviparousD. They have a diaphragm for respiration
Q8. Which of the following statements about amphibians is correct?A. They have a four-chambered heartB. They lay eggs with a hard shellC. They exhibit external fertilization in most speciesD. They are warm-blooded animals
Q9. Which of the following phyla is characterized by the absence of a coelom?A. AnnelidaB. ArthropodaC. PlatyhelminthesD. Mollusca
Q10. Which of the following characteristics is common to both amphibians and reptiles?A. Moist, glandular skinB. Three-chambered heartC. External fertilization in all speciesD. Possession of hair or fur