Wildlife is plentiful in the pineywoods. there are over 100 species of birds and many small mammals, like cottontail rabbits and squirrels. what else must be included in the pineywoods habitat to keep populations in balance?

Bacteria

Explanation:

Because in this situation they are discussing on which organisms are decomposers and they are bacteria.

organisms that lack symmetry are called asymmetrical and belong to phylum porifera/sponges.

organisms with specialized stinging cells belong to phylum cnidaria. stinging cells are called cnidoblast cells.

cnidarians show two morphological forms : polyp (sessile) and medusa (mobile)

filter feeding is observed in porifera members.  

alternation of generation is observed in coelenterata or cnidaria. there is alternation of asexual polyp form and sexual medusoid form. it is also referred as metagenesis.