Which of the following is not one of the five zones of the deciduous forest?
a. shrub
b. animal
c. herb
d. tree stratum

The animal is not one of the five zones of the deciduous forest

Explanation;

There are 5 layers (also referred to as zones or strata) within the temperate deciduous forest. These  are
 Tree stratum, the tallest layer, sixty -100 feet high, with giant oak, maple, beech, chestnut, hickory, elm, basswood, small tree or tree layer - short tree species and young trees.
Shrub layer -  It shrubs like rhododendrons, azaleas, mountain laurels, and huckleberries.
Herb layer - short plants.
Ground layer - lichens, clubmosses, and true mosses.inden, walnut, or sweet gum trees.