| Which of the following pairs are correctly matched? [AIPMT (S) 2007] |
| Animals Morphological features |
| A. Crocodile - 4-chambered heart |
| B. Sea urchin - Parapodia |
| C. Obelia - Metagenesis |
| D. Lemur - Thecodont |
A) A, C and D
B) B, C and D
C) Only A and D
D) Only A and B
Correct Answer: A
Solution :
[a] Exceptionally crocodile has 4-chambered heart. In Obelia the alternation of generation is called Metagenesis in which an asexual polypoid generation appears to alternate regularly with a sexual medusoid generation. Thecodont dentition is found in mammals.
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