The simplest form of carbohydrate is glucose. So, starch is a complex carb, while sugar is a simple carb.
The sun is the ultimate source of energy and the process is Photosynthesis.
6. Lion
7.raccoon
8.rat
9. A keystone is a organism that helps define the entire ecosystem, and if the species were to disappear from the ecosystem no other species would be able to fill its ecological niche the ecosystem would be forced to radically change allowing new and possibly invasive species to populate the habitat.
The answer is B and D i learned this in biology last week
