When looking through a miscrcope you see a single celled organism. You don't see any nucleus on this organism, this organism is most likely an Eukaryote.
True or false?

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.

the answer is d (apex) good luck : ))

i don't know, but does anyone wanna be friends? i'm doing my homework at 1: 49 in the morning : /