Of extinct Ice Age animals, woolly mammoths are probably one of the most famous. But if they were still around, then our ...

Plants and other photosynthetic organisms obtain CO2 from their environment and use it to build biological materials. Plants, animals, and decomposers (bacteria and fungi) return CO2 to the ...

There are also several different kinds of plants like mountain laurel, azaleas and mosses that live on the shady forest floor where only small amounts of sunlight get through.