Carbon dioxide. We read about the excess of carbon dioxide in the atmosphere and now it may be influencing our climate. But the oceans currently absorb about a third of human created a carbon emissions about 22 million times a day. The oceans have always been a carbon dioxide store house as the illustration shows. But this huge influx of carbon is changing the oceans. What is one change that would expect to happen

Increase the pH of water.

Explanation:

One change that would expect to happen the increase in pH of ocean water because carbondioxide gas is dissolved in water make it acidic. This acidic water greatly affect the marine animals such as oysters and corals whose shell is dissolved due to acidic nature of water so we can say that carbondioxide gas increases the pH of ocean water.

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 u all are looking for is 4000000000000000000000 million years.