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1ESO Fish and amphibians - Contenido educativo

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Subido el 10 de mayo de 2020 por Marta G.

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hello to vertebrates group for today so we have fish and we have the amphibians 00:00:00
okay we have to make two flaps one of them well you have to bring two things 00:00:08
okay that they give you for another day so have that ready and scissors glue 00:00:16
pencils everything yeah we are nearly done remember last day we prepare the 00:00:23
characteristics of vertebrates today we're going to make these two section 00:00:35
fish and amphibian so you will need to print first this well you should have 00:00:39
printed before but it's in the same page as the ones that we use for the 00:00:45
characteristics okay it's in the same page as this one so we need one for the 00:00:51
fish and this for the amphibians what are we going to do with the fish we're 00:00:57
gonna make a flap okay this should be here okay so we need to make a normal 00:01:04
flap that will fit in this space okay that has this size we're going to glue 00:01:11
the drawing outside okay and inside we have some information that I'm going to 00:01:18
explain now okay this characteristic you need to write it can you see where my 00:01:25
fish is okay underneath you have to write these characteristics first of all all fish are aquatic 00:01:31
they live in aquatic environment it could be either marine or fresh water so if they live 00:01:39
in the sea and oceans or they live in the in rivers they have fusiform body that is 00:01:46
a shape that allows them to swim better in the water, and they have fins, okay? Fins on top of 00:01:52
their body. Their body is covered in scales, okay? All over their body, and they breathe through 00:02:03
gills. Why gills and not lungs? Because that is good for taking the oxygen from the water. 00:02:11
And finally, one of the sense organs that is only into this group is the lateral line, 00:02:18
that is all around the body of the fish and allows them to detect the pressure and movement of the water surrounding them. 00:02:25
To finish writing the characteristics, underneath you need to write the types, the chondrichtus and osteictis, cartilagous fish and bony fish. 00:02:36
fish and here you need to print or draw a picture of a cartilagous fish that 00:02:45
could be a shark a ray and a bony fish that can be any type of fish 00:02:53
for the amphibians you need to cut this flower okay you cut it and you fold it 00:03:01
on the part that is dot the dot line you fold it okay see so we have finally this shape so it 00:03:13
could fit in this space for the amphibians okay and I will explain you the characteristics of 00:03:23
them now you have the flower and on each of the petal we're going to write different information 00:03:33
So, what do we need to write? First, how are the amphibians? All of them have four legs, meaning that they are tetrapods. They breathe different if they are in the larval stage or adults. If they are in the larval stage, they breathe through gills. If they are adults, they breathe through lungs and their skin. It's very important that they breathe through their skin. 00:03:40
So they are very sensitive for example to pesticides because they get attached to their skin 00:04:05
Metamorphosis from the egg. We have the tadpole and when the tadpole suffers the metamorphosis 00:04:11
Then becomes the frog or the toad. Okay, all of them suffer metamorphosis to become adults 00:04:18
We have two different groups 00:04:24
We have the anura which are the frogs and the toads and they have no tail when they are adults and the urodels 00:04:26
They are the nudes, that in Spanish we call them gritones, and salamanders, that in Spanish 00:04:34
we call them salamandras, and they have a tail when they are adults. 00:04:40
They live inside water most of the time, they can go outside and breathe, but most of the 00:04:45
time they live in water, that's why maybe you don't know them very well. 00:04:51
We'll see you next time. 00:05:04
Idioma/s:
en
Autor/es:
Marta García
Subido por:
Marta G.
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
63
Fecha:
10 de mayo de 2020 - 14:16
Visibilidad:
Clave
Centro:
IES FORTUNY
Duración:
05′ 17″
Relación de aspecto:
1.78:1
Resolución:
1280x720 píxeles
Tamaño:
199.48 MBytes

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