MCQ Collection

BS Zoology Semester Exam MCQs

Practice BS Zoology Semester Exam questions with answers and explanations.

BS Zoology Semester ExamAnimal Diversity-I (Invertebrates)PakistanMedium

In a specimen-based viva, the examiner describes this case: a health campaign reduces mosquito and sand fly breeding sites in an endemic area. Choose the concept that fits it best.

A. vector control reduces many parasitic diseases B. vector control applies only to sponges C. vector control increases mosquito transmission D. vector control replaces diagnosis completely
Correct Answer: A. vector control reduces many parasitic diseases
BS Zoology Semester ExamAnimal Diversity-I (Invertebrates)PakistanMedium

For a concept-based MCQ, read this case: 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. Select the strongest explanation. (211)

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

A learner makes a note: a student explains why proper cooking and meat inspection reduce some cestode infections. The missing scientific idea is:

A. tapeworm infection relates to contaminated or undercooked meat B. tapeworm infection occurs through sponge spicules C. tapeworm infection is caused by coral polyps D. tapeworm infection is caused by mosquito bite
Correct Answer: A. tapeworm infection relates to contaminated or undercooked meat
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: (196)

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

For a concept-based MCQ, read this case: a flatworm and a roundworm are placed side by side. the roundworm is recognized by a cylindrical body, complete gut, and pseudocoelom. Select the strongest explanation. (212)

A. dorsoventrally flattened acoelomate body B. radial body with cnidocytes C. cylindrical body with pseudocoelom and complete gut D. segmented body with setae
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 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: (197)

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

For a concept-based MCQ, read this case: a mollusc and an annelid both show trochophore larvae in many species, but their adult body plans are very different. Select the strongest explanation. (213)

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