Question: Marine annelids can make a swimming larvae called what?\nOptions:\n- (A) barnacles\n- (B) survive\n- (C) graptolites\n- (D) epidermal\n- (E) Something to move\n- (F) a trochophore\n- (G) fertile\n- (H) permineralization
Let's be accurate as possible and think step-by-step.
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Adult worms go through a major transformation to develop reproductive organs. Marine annelid worms have larvae called trochophores that swim about by means of cilia. Marine annelids go through a major transformation to be able to make larvae called trochophores that swim about by means of cilia.
The answer: (F).
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