Hydras yog predatory; lawv noj worms, kab larvae, me crustaceans, larval ntses, thiab lwm yam invertebrates. Lawv siv lawv lub hlwb stinging rau stun, entangle, los yog tua lawv cov tsiaj ua ntej noj nws. Qee hom Hydra tseem tau paub ua ntses kom tuag.
Cnidarians noj dab tsi?
Predators and Prey
Lawv pub rau lwm cov tsiaj txhu. Qhov no suav nrog cov kab mob ua luam dej dawb xws li arrowworms (Sagitta) thiab segmented worms (Tomopteris spp). Lawv kuj noj cov comb jellies, cov kab mob uas zoo li jellyfish.
Cnidarians nqus zaub mov li cas?
Cnidarians ua rau kev zom zaub mov ntxiv, qhov twg enzymes zom cov zaub mov thiab cov hlwb hauv cov kab noj hniavnqus cov as-ham. Cnidarians muaj lub plab zom mov tsis tiav nrog tsuas yog ib qho qhib; lub plab kab noj hniav ua haujlwm ua ob lub qhov ncauj thiab qhov quav.
Cnidarians noj thiab tshem tawm pov tseg li cas?
Cnidarians noj hauv zaub mov los ntawm lawv lub qhov ncauj, uas tom qab ntawd zom hauv coelenteron. Cov zaub mov raug xa mus rau lwm qhov chaw ntawm lub cev siv, thiab cov khoom pov tseg raug tshem tawm los ntawm lub qhov ncauj lossis los ntawm cov hlwb ntawm cov dej ntws.
Yog Coelenterates carnivores?
Coelenterates yog generally carnivorous in nature, tsuas yog qee hom, xws li coral, uas tau txais qee yam ntawm lawv cov zaub mov los ntawm cov symbionts tshwj xeeb nyob hauv lawv.
