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Question

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


A

Only A and B

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B

A, C and D

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C

B, C and D

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D

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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