Question

4 caracteristicas en ingles sobre los anfibios

Answer 1

They are vertebrate animals, living a part of his life in the aquatic environment after a metamorphosis going to live on land.They have the peculiarity of having a separate system to mammals; in which the blood circulation is double, because they have a smaller circuit or pulmonary, which carries venous blood to the lungs and brings it back to the heart and major or general circuit that leads arterial blood to the rest of body and brings back the venous blood to heartIts reproduction is oviparous; sexual reproduction is through external fertilization and embryo development, laying eggs in water sources, where their larvae develop into adulthood.Have a different skin to other animal groups, that unlike fish, reptiles, birds and mammals, which have scales, feathers and hair, respectively.They are poikilothermic animals or pecilotermos, ie not have a mechanism for regulating the temperature, so they have to use heat sources such as the sun or geothermal in the case of nicknames, to keep warm, so in winter climates lethargic periods or enter hibernation.

Answer 2

- 4 Características : 
-Are vertebrate animals . 
-Its reproduction is oviparous .
-It is different from other animals which, unlike birds and mammals skin, have scales.
- And they are poikilothermic animals .