How has the douglas-fir adapted to enable its survival in the taiga biomes?

The Coast Douglas Fir is a perennial, woody plant which means it has longevity and continues growing for many years. One of these characteristics is that they have developed a bark that is thicker then many other species of trees. The bark is also almost cork-like in the way it is composed. The trees have also developed adventitious roots, which means that they grow directly out of the trunk.

The correct answer to this question would be c