Uned 2
Dosbarthiad a bioamrywiaeth
Classification of life: https://www.youtube.com/watch?v=tYL_8gv7RiE
The three domains of life: https://www.youtube.com/watch?v=wGVgIcTpZkk
Biodiversity: https://www.youtube.com/watch?v=0-PE3ve3w2w
Loss of biodiversity: https://www.youtube.com/watch?v=vCkDxD0DV0Q
Comparing DNA sequences: https://www.youtube.com/watch?v=OSKwuOccAak
Adaptation: https://www.youtube.com/watch?v=-BzPjwL6JAs
Addasiadau ar gyfer maethiad
The digestive system: https://www.youtube.com/watch?v=nM5kMSjBrmw