In a specimen-based viva, the examiner describes this case: a tiny freshwater animal creates feeding currents using a wheel-like crown of cilia near the head. Choose the concept that fits it best.
Correct Answer: C. corona
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All MCQs
Browse exam-wise, subject-wise, and country-wise MCQs with explanations.
A student is revising Animal Diversity-I: a roundworm thrashes side to side rather than crawling with waves of circular muscles. What should the student write in the answer sheet?
Correct Answer: B. longitudinal muscles only
During a Zoology practical, a human infection follows eating undercooked pork containing larvae encysted in muscle. Select the most accurate identification.
Correct Answer: D. Trichinella spiralis
A filarial worm blocks lymphatic vessels and may cause elephantiasis. The best answer is:
Correct Answer: A. Wuchereria bancrofti
A learner makes a note: a large intestinal roundworm infects humans and may cause nutritional problems or intestinal blockage. The missing scientific idea is:
Correct Answer: B. Ascaris lumbricoides
In museum study, a juvenile roundworm increases in size by shedding its old cuticle several times. The specimen or feature is best linked with:
Correct Answer: B. ecdysis
While comparing invertebrate groups, a nematode grows but must periodically shed a tough outer covering. The feature being tested is:
Correct Answer: D. cuticle
A diagram in the course handout shows that a roundworm has a separate mouth and anus, allowing one-way movement of food. Identify the related structure or process.
Correct Answer: C. complete digestive tract
For semester exam preparation, consider this situation: a worm from soil is cylindrical, unsegmented, and has a fluid-filled cavity not fully lined by mesoderm. The correct conclusion is:
Correct Answer: A. pseudocoelomate round body
A lab observation notes that in a flatworm cross-section, tissue fills the region between the gut and body wall instead of a coelom. The observation points to:
Correct Answer: C. parenchyma fills the body space
In a specimen-based viva, the examiner describes this case: a planarian has a definite head end and can be divided into right and left mirror halves. Choose the concept that fits it best.
Correct Answer: D. bilateral symmetry
A student is revising Animal Diversity-I: a small meiofaunal animal glides across sediment using cilia on its lower surface. What should the student write in the answer sheet?
Correct Answer: B. ciliated ventral surface