This is another great PowerPoint that I put together about ecosystems and biomes. This one covers specifically tropical biomes.
It has pictures of examples both the flora and the fauna associated with each. It also shows what deforestation looks like on a large scale.
This is a really cool presentation that both biology and AP Environmental Science students will enjoy. You will also enjoy presenting it!
It goes hand-in-hand with the biome mapping lab I have posted on teacherspayteachers.com.
Good luck and happy presenting!