NATURAL SCIENCE: UNIT 4 ECOSYSTEMS

It is an interesting TOPIC!
Let´s see!

What is an ecosystem?
 https://www.youtube.com/watch?v=qr_U1P7XwhI
https://www.youtube.com/watch?v=P1X-WpfUvm4

Consumers, producers and descomposer:
https://www.youtube.com/watch?v=bJEToQ49Yjc

Endangered species:
https://www.worldwildlife.org/species/directory?direction=desc&page=2&sort=extinction_status

Food web and food chain:
https://www.youtube.com/watch?v=XkCMxjvtTXo
https://www.youtube.com/watch?v=hWJg9LONnko
https://www.youtube.com/watch?v=u1-CsgYxMnc&t=11s
https://www.youtube.com/watch?v=FFloV2J-eKI
https://www.youtube.com/watch?v=FFloV2J-eKI
https://www.youtube.com/watch?v=Vtb3I8Vzlfg
https://www.youtube.com/watch?v=u1-CsgYxMnc

Terrestrial ecosystem:
https://www.youtube.com/watch?v=I9bpsrllH1I

Aquatic ecosystem:
https://www.youtube.com/watch?v=4fMemcd-VXw
https://www.youtube.com/watch?v=J2BKd5e15Jc