Arthropoda is the largest phylum of animal kingdom. Body of arthropod is divisible into head, thorax and abdomen. Head and thorax often fused to form cephalothorax. The respiration takes place by general body surface, gills, tracheae or book lungs. Molluscs are dioecious or monoecious, one or more gonads with gonoducts, opening into renal ducts or to exterior. The fertilization is external or internal, development direct or through free larval forms. Echinoderms have a pentamerous radial symmetry derived from an original bilateral symmetry. The fertilization is external, development indirect through free-swimming larval forms. Chordates are sharply distinguished from non-chordates by presence of notochord, dorsal tubular central nervous system and pharyngeal gills slits.
Which one of the following phyla is correctly matched with its two general characteristics?
NEET UG 2008 — Botany Animal Kingdom
Which one of the following phyla is correctly matched with its two general characteristics?
Held on 30 Apr 2008 · Verified 9 Jul 2026.
Options
- A
Athropoda
- B
Chordata - Body divided into head, thorax and abdomen and respiration by tracheae - Notochord at some stage and separate anal and urinary openings to the cutside
- C
Echinodermata - Pentamerous radial symmetry and mostly internal fertilization
- D
Mollusca - Normally oviparous and development through a trochophore or veliger larva
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