Which of the following is not one of the five zones of the deciduous forest?

a. shrub

b. animal

c. herb

d. tree stratum

I think the correct answer from the choices listed above is option B. Animal is not one of the five zones of the deciduous forest. It is clearly not a zone. These five zones or layers are the tree stratum, sapling layer, shrub layer, herb layer and the ground layer.

The correct answer should be B. animal

That is because animals are not a zone of the deciduous forest, as they are animals, they are not a forest part.