3. evergreens are trees that are adapted to keep their leaves all year long. most of the trees that grow in the taiga biome are evergreens because this adaptation

It allows plants to lose water and heat more quickly as temperature increases, prevents the plant from wasting energy by growing leaves when the temperatures are too cold, prevents the plant from getting too hot during the summer months of the year and it allows plants to perform photosynthesis as soon as temperatures are warm enough. Hope this helps :)