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birdsBy JimenaHi , today we are going to talk about birds.Birds are terrestial vertebrates and the most of them can fly.Birds are classified into two groups: YESYES Ratite: Heron Carinate: Ostrich RatitesCarinatesThey have no keel.They are only a few, llarge flightless birds.Its keel can suported powerful muscles that move wings.They are the majority and can fly.The sternum is very wide.CarinatesRatites3124They have aerodynamic body.They are covered with feathersThey breathe with lungsSome characteristicsTheir mandible have no teeth.Vital functionsReproductionNutritionThey reproduce sexually and are oviaporous.They are heterotrophic and some of there are carnivores while other herbivores.Thank you

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Actividades de Marian Cia, página 1 - Educaplay

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Take a look at our interactive learning Mind Map about BIRDS, or create your own Mind Map using our free cloud based Mind Map maker and mobile apps.