| Organisms | Characteristics |
| Platyhelminthes | They are triploblastic, acoelomates having bilateral symmetry with the incomplete digestive system. |
| Echinoderms | Adults show pentaradial symmetry, while the embryonic show bilateral symmetry. The mode of embryonic development is indirect. |
| Hemichordates | They are triploblastic, coelomates having cylindrical bodies with no segmentation |
| Aves | Aves and mammals have a four-chambered heart, that prevents the mixing of oxygenated and deoxygenated blood and hence are warm-blooded. The mode of embryonic development is direct. |
Match the following group of organisms with their respective distinctive characteristics and select the correct option: Organisms Characteristics (a)…
NEET UG 2020 — Botany Animal Kingdom
2020mcqeasy
Match the following group of organisms with their respective distinctive characteristics and select the correct option:
| Organisms | Characteristics | ||
| (a) | Platyhelminthes | (i) | Cylindrical body with no segmentation |
| (b) | Echinoderms | (ii) | Warm-blooded animals with direct development |
| (c) | Hemichordates | (iii) | Bilateral symmetry with incomplete digestive system |
| (d) | Aves | (iv) | Radial symmetry with indirect development |
Official previous-year question
Held on 30 Apr 2020 · Verified 9 Jul 2026.
Options
- A
(a)−(iii),(b)−(iv),(c)−(i),(d)−(ii)
- B
(a)−(ii),(b)−(iii),(c)−(iv),(d)−(i)
- C
(a)−(iv),(b)−(i),(c)−(ii),(d)−(iii)
- D
(a)−(i),(b)−(ii),(c)−(iii),(d)−(iv)
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