What do you think is meant by the statement “the human digestive system is very efficient at squeezing everything it can out of any food?" How do you think this relates to the way biomolecules are broken down and used bythe body?

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.

this is more of a statement than a question. is there answers to go along with this, or is it opinion based?