Completar frases U6. Biology IIIVersión en línea Complete the following sentences with the correct word por Irene Caro 1 mammals reptiles fish amphibians birds are ectothermic vertebrates with smooth skin ( no hair or scales ) . they live on land and in wate r 2 cutaneous friendly soft substances struggle toxic their skin is and moist with no protective covering so on land in hot weather they can dry out and to survive . some produce which they release through their skin g 3 lungs teeths many amphibians have in their mout h 4 anckae tail some have a , which they use to swi m 5 tetrapods leg tail most amphibians are , although some don't have any 6 struggle cutaneous tetrapods : try very hard to do something difficul t 7 struggle tetrapods cutaneous : animals with four limbs 8 tetrapods cutaneous struggle : relating to the ski n 9 struggle larvae cutaneous adult gills nutrition . amphilibians breathe with lungs and amphibian breathe with . they also use respiratio n 10 carnivores herbivore adults larve nutrition . most amphibians are but their are usually 11 communicat sounds cords vocal interaction . some amphibians have that allow them to make to 12 sexually fertilisitaion oviparou viviparous asexually reproduction . amphibians usually reproduce using external and they're 13 struggle larvae gills lungs adults metamorphosis to turn into adults , amphibians go through . adults lay eggs in water and larvae hatch . have teeth and a long tail , but no limbs . they breathe through . as larvae grow , they develop limbs and lungs so that they can live out of water . in some cases , they also lose their tail .
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