MCQs Archive - Page 55 of 401

BS Zoology Semester Exam Animal Diversity-I (Invertebrates)PakistanMedium

A flatworm and a roundworm are placed side by side. The roundworm is recognized by a cylindrical body, complete gut, and pseudocoelom. In an exam answer, the key reason is: (252)

A. dorsoventrally flattened acoelomate body B. radial body with cnidocytes C. segmented body with setae D. cylindrical body with pseudocoelom and complete gut

Correct Answer: D. cylindrical body with pseudocoelom and complete gut

BS Zoology Semester Exam Animal 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: (251)

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

Correct Answer: B. cellular-level organization with choanocytes

BS Zoology Semester Exam Animal Diversity-I (Invertebrates)PakistanHard

In a viva, the examiner says: a sea star and a chordate are discussed together in a phylogeny lecture even though one is an invertebrate. The expected answer is: (250)

A. diploblastic body wall B. protostome development C. lack of mesoderm D. deuterostome development

Correct Answer: D. deuterostome development

BS Zoology Semester Exam Animal Diversity-I (Invertebrates)PakistanHard

In a viva, the examiner says: an arthropod and a nematode are grouped together in modern discussions because both shed an outer cuticle during growth. The expected answer is: (249)

A. ecdysis of a cuticle B. presence of a radula C. presence of cnidocytes D. water vascular system

Correct Answer: A. ecdysis of a cuticle

BS Zoology Semester Exam Animal Diversity-I (Invertebrates)PakistanHard

In a viva, the examiner says: a mollusc and an annelid both show trochophore larvae in many species, but their adult body plans are very different. The expected answer is: (248)

A. tube feet as a shared adult trait B. jointed appendages as a shared adult trait C. trochophore larva as a developmental link D. cnidocytes as a shared adult trait

Correct Answer: C. trochophore larva as a developmental link

BS Zoology Semester Exam Animal 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: (247)

A. radial body with cnidocytes B. cylindrical body with pseudocoelom and complete gut C. dorsoventrally flattened acoelomate body D. segmented body with setae

Correct Answer: B. cylindrical body with pseudocoelom and complete gut

BS Zoology Semester Exam Animal 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: (246)

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 Exam Animal Diversity-I (Invertebrates)PakistanHard

A student wants to avoid rote memorization. After reading that a sea star and a chordate are discussed together in a phylogeny lecture even though one is an invertebrate., the correct concept is: (245)

A. diploblastic body wall B. lack of mesoderm C. protostome development D. deuterostome development

Correct Answer: D. deuterostome development

BS Zoology Semester Exam Animal Diversity-I (Invertebrates)PakistanHard

A student wants to avoid rote memorization. After reading that an arthropod and a nematode are grouped together in modern discussions because both shed an outer cuticle during growth., the correct concept is: (244)

A. presence of a radula B. water vascular system C. ecdysis of a cuticle D. presence of cnidocytes

Correct Answer: C. ecdysis of a cuticle

BS Zoology Semester Exam Animal 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: (243)

A. jointed appendages as a shared adult trait B. tube feet 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 Exam Animal 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: (242)

A. cylindrical body with pseudocoelom and complete gut B. radial body with cnidocytes C. dorsoventrally flattened acoelomate body D. segmented body with setae

Correct Answer: A. cylindrical body with pseudocoelom and complete gut

BS Zoology Semester Exam Animal 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: (241)

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

Correct Answer: B. cellular-level organization with choanocytes

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