Os peixes podem respirar na \u00e1gua gra\u00e7as ao desenho especial dos seus corpos.<\/p>\n
Claro que necessitam de respirar oxig\u00e9nio e o oxig\u00e9nio encontra-se na \u00e1gua.<\/p>\n
Os animais de terra t\u00eam pulm\u00f5es com os quais podem absorver o oxig\u00e9nio do ar, mas n\u00e3o da \u00e1gua. Os peixes n\u00e3o t\u00eam pulm\u00f5es, t\u00eam guelras com as quais obt\u00eam o oxig\u00e9nio da \u00e1gua.<\/p>\n
Quando um peixe respira, entra \u00e1gua na boca, que volta a expulsar por uns orif\u00edcios existentes debaixo das guelras, ficando apenas o oxig\u00e9nio.<\/p>\n","protected":false},"excerpt":{"rendered":"
Os peixes podem respirar na \u00e1gua gra\u00e7as ao desenho especial dos seus corpos. Claro que necessitam de respirar oxig\u00e9nio e o oxig\u00e9nio encontra-se na \u00e1gua. Os animais de terra t\u00eam pulm\u00f5es com os quais podem absorver o oxig\u00e9nio do ar, mas n\u00e3o da \u00e1gua. Os peixes n\u00e3o t\u00eam pulm\u00f5es, t\u00eam guelras com as quais obt\u00eam 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