Which is not true ?A. Molluscans are shelled animalsB. Mammals have 4 – InterviewSolution

1.	Which is not true ?A. Molluscans are shelled animalsB. Mammals have 4 chambered heart due no hairC. Intestinal parasite , Common Roundworm , has three lipsD. External ears are absent in snakes but fangs may occur.
Answer» Correct Answer - B

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