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Use "cercariae" in a sentence
"These animals, called cercariae, flicked their tails madly through the water."
"As few as 12 trematode larvae, known as cercariae, can kill or deform a single tadpole by burrowing into their limb regions and disrupting normal leg development, he said."
"The cercariae emerged from the snail, promptly forming cysts on the snail."