Which of the following represents the correct match of a feature with the given set of animals?
Feature Organisms
1. Diploblastic condition Hydra, sea walnut, Planaria
2. Bilateral symmetry Hagfish, cuttlefish, jellyfish
3. True coelom Dogfish, devil fish, star fish
4. Notochord Lancelet, leech, lac insect

Moderate

Solution

Dogfish (Chordata), devil fish (Mollusca), star fish (Echinodermata) have true coelom.
Planaria (Platyhelminthes) is triploblastic.
Jelly fish (Cnidaria) is radially symmetrical.
Leech (Annelida) and lac insect (Arthropoda) do not have notochord.

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	Feature	Organisms
1.	Diploblastic condition	Hydra, sea walnut, Planaria
2.	Bilateral symmetry	Hagfish, cuttlefish, jellyfish
3.	True coelom	Dogfish, devil fish, star fish
4.	Notochord	Lancelet, leech, lac insect