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Unit 3. Vertebrates and invertebrates. Natural Science - Contenido educativo

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Subido el 1 de febrero de 2021 por Virginia M.

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Welcome to the Unit 3 of Natural Science. 00:00:03
In this unit we are going to learn about animals and the different groups of animals. 00:00:06
We have two big groups, vertebrates and invertebrates. 00:00:12
The vertebrates have bones, do you remember what is a bone? 00:00:17
Or also a spine or a fist, ok? 00:00:21
The invertebrates, they don't have any bone. 00:00:26
Inside the vertebrates, we have several groups of different animals, okay? 00:00:32
For example, we have the mamas. 00:00:41
The mamas are the only animals that are born from the tummy of the mamas, okay? 00:00:43
The others are born from the eggs. 00:00:50
we have mammals we have birds we have trees reptiles and amphibians an example of a normal 00:00:56
maybe a lion an elephant the humans the birds okay we have for example a parrot a eagle 00:01:07
fish, the shark, the crab fish, the ursula, all the fish, okay? Reptiles, for example a snake, 00:01:19
a crocodile, a lizard, amphibians, like the frog, okay? And now we are going to see how 00:01:31
are the bodies covered? In the case of mamas, they have fur. In the case of birds, they 00:01:41
have feathers. The fish and the reptiles, their body are covered with scales. The amphibians 00:01:51
have the burnt skin they have nothing it's like very very soft skin now let's 00:02:05
go with the invertebrates the invertebrates they don't have bones and there are 00:02:13
well we are going to see only three videos more or less inside worms, molluscs 00:02:19
there are others but with these are enough for today and how are they body 00:02:26
covers. We are going to see three types of body covering for invertebrates. We have the soft skin, 00:02:32
sorry, the soft body. He has a soft body for example, the worm, the spider, the bee. Now, 00:02:50
Now, the second is the exoskeleton. For example, a scorpion, a lobster, a grasshopper. They have, like, it's hard outside. That is an exoskeleton. 00:03:04
And then we have the cell. He has a cell, a snail, a muscle, okay? The cell is this, okay? 00:03:23
Subido por:
Virginia M.
Licencia:
Todos los derechos reservados
Visualizaciones:
32
Fecha:
1 de febrero de 2021 - 18:10
Visibilidad:
Clave
Centro:
CP INF-PRI NTRA. SRA. DE FATIMA
Duración:
03′ 43″
Relación de aspecto:
1.78:1
Resolución:
1280x720 píxeles
Tamaño:
199.08 MBytes

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