Which of the following pairs are correctly matched? (i) Crocodile & 4 chambered heart (ii) Sea urchin & Parapodia (iii) Obelia & Metagenesis (iv) Lemur & Thecodont
Correct answer: D. (i), (iii) and (iv)
- A. (ii), (iii) and (iv)
- B. Only (i) and (iv)
- C. Only (i) and (ii)
- D. (i), (iii) and (iv)
Explanation
Reptiles have two auricles and a partly divided ventricle except 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 thecodont teeth i.e., the teeth are embedded in the sockets of the jaw bone.
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