Which of the following statements is false?

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(C) Option $C$ is false because echinoderms are deuterostomous,not protostomous. In deuterostomes,the blastopore develops into the anus,whereas in pro

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Echinoderms are protostomous coelomates

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(C) Option $C$ is false because echinoderms are deuterostomous,not protostomous. In deuterostomes,the blastopore develops into the anus,whereas in protostomes,it develops into the mouth. Option $A$ is true as sexual dimorphism exists in Ascaris (roundworms),where males are smaller. Option $B$ is true as earthworms are hermaphrodites (monoecious). Option $D$ is true as human teeth and shark scales (placoid scales) share similar developmental origins and structural components.

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