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BS Zoology Semester ExamAnimal Diversity-I (Invertebrates)PakistanMedium

A sponge and a cnidarian are compared in class. The sponge differs most clearly because it has cellular-level organization and choanocyte-based filter feeding. In an exam answer, the key reason is: (276)

A. jointed appendages and exoskeleton B. cellular-level organization with choanocytes C. cnidocytes and gastrovascular cavity D. radula and mantle cavity
Correct Answer: B. cellular-level organization with choanocytes
BS Zoology Semester ExamAnimal Diversity-I (Invertebrates)PakistanMedium

In a viva, the examiner says: a flatworm and a roundworm are placed side by side. the roundworm is recognized by a cylindrical body, complete gut, and pseudocoelom. The expected answer is: (272)

A. radial body with cnidocytes B. segmented body with setae C. cylindrical body with pseudocoelom and complete gut D. dorsoventrally flattened acoelomate body
Correct Answer: C. cylindrical body with pseudocoelom and complete gut
BS Zoology Semester ExamAnimal Diversity-I (Invertebrates)PakistanMedium

In a viva, the examiner says: a sponge and a cnidarian are compared in class. the sponge differs most clearly because it has cellular-level organization and choanocyte-based filter feeding. The expected answer is: (271)

A. cellular-level organization with choanocytes B. radula and mantle cavity C. cnidocytes and gastrovascular cavity D. jointed appendages and exoskeleton
Correct Answer: A. cellular-level organization with choanocytes
BS Zoology Semester ExamAnimal Diversity-I (Invertebrates)PakistanHard

A student wants to avoid rote memorization. After reading that a mollusc and an annelid both show trochophore larvae in many species, but their adult body plans are very different., the correct concept is: (268)

A. tube feet as a shared adult trait B. jointed appendages as a shared adult trait C. cnidocytes as a shared adult trait D. trochophore larva as a developmental link
Correct Answer: D. trochophore larva as a developmental link
BS Zoology Semester ExamAnimal Diversity-I (Invertebrates)PakistanMedium

A student wants to avoid rote memorization. After reading that a flatworm and a roundworm are placed side by side. the roundworm is recognized by a cylindrical body, complete gut, and pseudocoelom., the correct concept is: (267)

A. cylindrical body with pseudocoelom and complete gut B. radial body with cnidocytes C. segmented body with setae D. dorsoventrally flattened acoelomate body
Correct Answer: A. cylindrical body with pseudocoelom and complete gut
BS Zoology Semester ExamAnimal Diversity-I (Invertebrates)PakistanMedium

A student wants to avoid rote memorization. After reading that a sponge and a cnidarian are compared in class. the sponge differs most clearly because it has cellular-level organization and choanocyte-based filter feeding., the correct concept is: (266)

A. cnidocytes and gastrovascular cavity B. jointed appendages and exoskeleton C. cellular-level organization with choanocytes D. radula and mantle cavity
Correct Answer: C. cellular-level organization with choanocytes