NS 3º U2 L3 Videolesson - Contenido educativo
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Hello, class! Welcome to a new Natural Science lesson.
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In this case, Natural Science, Unit 2, Lesson 3,
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Groups of Vertebrates.
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Remember, vertebrates are those animals
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with a backbone and a skeleton inside of them.
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In the mirror world, there are five groups of vertebrates.
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Amphibians, reptiles, birds, mammals and fish.
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Remember, we can classify these groups into
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warm-blooded, like birds and mammals,
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or cold-blooded, like amphibians, reptiles and fish.
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Next.
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Next.
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Vertebrates are covered by...
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Mirror world.
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Mammals are covered by fur.
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Birds are covered by feathers.
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One curiosity of birds.
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In the spring, peacocks display their beautiful feathers.
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Mirror world.
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Scales.
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Reptiles and fish are covered by scales.
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Or skin.
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Amphibians and some mammals are covered by skin.
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Next.
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Reproduction.
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Remember that vertebrates can be viviparous or oviparous.
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Mirror world.
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Mammals are viviparous.
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Amphibians, reptiles, birds and fish are oviparous.
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One curiosity of mammals is that female mammals produce milk to feed their babies.
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Next.
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Vertebrates live on land or in water.
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Next.
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Vertebrates breathe with lungs or with gills.
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With lungs.
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Birds, mammals and reptiles breathe through lungs.
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On the other hand, fish breathe with gills.
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And what happens with amphibians?
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Both.
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Baby amphibians breathe using their gills.
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Adult amphibians use their lungs to breathe.
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Next.
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You can watch this video on YouTube.
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You have the presentation in our Aula Virtual de Duca Madrid.
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Here you have some examples of mammals.
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Here you have some examples of reptiles.
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Remember that snakes have no limbs so they slither to move around.
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Chameleons use their camouflage to defend themselves from predators.
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These are some examples of amphibians.
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These are some examples of birds.
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Penguins are birds but they cannot fly.
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They can't swim.
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That's all. Thank you for listening.
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- Idioma/s:
- Autor/es:
- Fernando García
- Subido por:
- Fernando G.
- Licencia:
- Reconocimiento - No comercial - Sin obra derivada
- Visualizaciones:
- 54
- Fecha:
- 28 de noviembre de 2023 - 14:09
- Visibilidad:
- Clave
- Centro:
- CP INF-PRI IPLACEA
- Duración:
- 05′ 12″
- Relación de aspecto:
- 1.78:1
- Resolución:
- 1092x614 píxeles
- Tamaño:
- 21.21 MBytes