The decomposers you see in your terrarium such as the pillbug, earthworm, and millipede do the first step, the physical breakdown of dead plants and animals.
(The decomposers; see; L:in your terrarium such as the pillbug, earthworm, and millipede) (The decomposers you see in your terrarium such as the pillbug, earthworm, and millipede; do; the first step)
The decomposers The decomposers you see in your terrarium such as the pillbug, earthworm, and millipede
see do
L:in your terrarium such as the pillbug, earthworm, and millipede
the first step