Which of the following statements about the intent of earth's global ocean is correct

4

Explanation:

the ocean covers 70% and land covers 20%

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.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects