How has the douglas-fir adapted to enable its survival in the taiga biome?
a.
low growing
b.
perennial
c.
waxy needles
d.
survive on limited nutrients

c. waxy needles

Taiga is the biome with needle leaf trees. It is a cold biome. Douglas-fir have long, thin and waxy needle shaped leaves. Wax prevents the loss of water through transpiration and also prevents freezing and leaves being drying out.

answer; /// i believe the correct answer is (reactants);

the denominator has a very specific role.