Which of the following pairs is correctly matched?

Animals Morphological features
(A) Crocodile 4 - chambered heart
(B) Sea Urchin Parapodia
(C) Obelia Metagenesis
(D) Lemur Thecodont

Only A and B

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A, C and D

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B, C and D

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Only A and D

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Solution

The correct option is B
A, C and D

Reptiles have two auricles and a partly divided ventricle except for crocodiles which have a four-chambered heart. Obelia shows metagenesis i.e. alternation of generations which may be defined as a phenomenon in which diploid asexual phase alternates with haploid sexual phase. Lemur has a thecodont teeth i.e. the teeth are embedded in the sockets of the jaw. Parapodia is a characteristic feature phylum Annelida but sea urchins belong to the phylum Echinodermata.

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