Which of the following pairs are correctly matched?
AnimalsMorphological features
$(i)$ Crocodile$4$-chambered heart
$(ii)$ Sea urchinParapodia
$(iii)$ ObeliaMetagenesis
$(iv)$ LemurThecodont

  • A
    $(ii), (iii)$ and $(iv)$
  • B
    only $(i)$ and $(iv)$
  • C
    only $(i)$ and $(ii)$
  • D
    $(i), (iii)$ and $(iv)$

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Similar Questions

Give an example of the following:
$(a)$ $A$ viviparous animal
$(b)$ $A$ fish possessing a poison sting
$(c)$ $A$ fish possessing an electric organ
$(d)$ An organ which regulates buoyancy
$(e)$ An animal which exhibits alternation of generation
$(f)$ An oviparous animal with mammary glands

$Monocystis$ belongs to the order:

How many of the following animals are homeothermic (warm-blooded)?
Rattus,Macropus,Balaenoptera,Columba,Calotes,Crocodilus,Naja,Hyla,Rana,Neophron,Tigris

Which of the following pairs is correctly matched?

$S$ - Statement: The presence of cnidoblasts is a characteristic feature of Cnidarians.
$R$ - Reason: In sponges,amphiblastula or parenchymula larvae are observed.

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