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?

Correct Answer: D

body form helps separate phyla during museum study

External body form gives important first clues in invertebrate identification. Pores, tentacles, segmentation, shells, jointed appendages, and radial arms can guide students toward the correct phylum. This MCQ belongs to the Practical zoology topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.