    Sentence Heectelia prey mostly  on what animal?    Sentence 2: Cttenophores have been  compared to. spiders. «inthe wide range  of techniques from capturing prey — some hang motionless  in the water using their tertaces as ‘webs, some are ambush  predators like Sdticid jumping spiders, and some dangle a sticky  droplet a the end of a fine thread, as bolas spiders do.