BS Zoology Semester Exam | Page 57

BS Zoology Semester Exam Animal 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. (237)

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

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

BS Zoology Semester Exam Animal 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. (238)

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

Correct Answer: C. trochophore larva as a developmental link

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

For a concept-based MCQ, read this case: an arthropod and a nematode are grouped together in modern discussions because both shed an outer cuticle during growth. Select the strongest explanation. (239)

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

Correct Answer: B. ecdysis of a cuticle

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

For semester exam preparation, consider this situation: a practical note asks students to connect a protozoan disease with its vector. The correct conclusion is:

A. Ascaris transmitted by oysters B. Taenia transmitted by sand fly C. Plasmodium transmitted by Anopheles mosquito D. Entamoeba transmitted by tsetse fly

Correct Answer: C. Plasmodium transmitted by Anopheles mosquito

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

During a Zoology practical, flatworms lack lungs and blood vessels yet survive because most cells are close to surfaces or a branched gut. Select the most accurate identification.

A. diffusion depends on coral skeleton B. diffusion requires jointed legs C. diffusion always suits large thick animals D. diffusion suits small or flattened animals

Correct Answer: D. diffusion suits small or flattened animals

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

A teacher gives this comparison: a mollusc and an annelid both show trochophore larvae in many species, but their adult body plans are very different. The point being tested is: (208)

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

Correct Answer: B. trochophore larva as a developmental link

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: (224)

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

Correct Answer: D. ecdysis of a cuticle

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

A diagram in the course handout shows that a patient develops amoebiasis after consuming unsafe water in an area with poor sanitation. Identify the related structure or process.

A. Entamoeba spreads by tsetse fly B. Entamoeba spreads by mosquito bite C. Entamoeba spreads only by pork D. Entamoeba histolytica spreads by contaminated food and water

Correct Answer: D. Entamoeba histolytica spreads by contaminated food and water

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

A student is revising Animal Diversity-I: a student compares a sponge, a jellyfish, a worm, a snail, a crab, and a sea star in the museum. What should the student write in the answer sheet?

A. body form never helps classification B. only country of origin matters C. only colour separates all phyla D. body form helps separate phyla during museum study

Correct Answer: D. body form helps separate phyla during museum study

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

A teacher gives this comparison: an arthropod and a nematode are grouped together in modern discussions because both shed an outer cuticle during growth. The point being tested is: (209)

A. ecdysis of a cuticle B. presence of cnidocytes C. presence of a radula 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 sea star and a chordate are discussed together in a phylogeny lecture even though one is an invertebrate. The expected answer is: (225)

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

Correct Answer: B. deuterostome development

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

While comparing invertebrate groups, a physician suspects leishmaniasis in a patient from an area with biting sand flies. The feature being tested is:

A. Leishmania is transmitted by sponge B. Leishmania is transmitted by oyster C. Leishmania is transmitted by earthworm D. Leishmania is commonly transmitted by sand fly

Correct Answer: D. Leishmania is commonly transmitted by sand fly

BS Zoology Semester Exam MCQs