Harbor seal Sea otters
Tuna, cod,
sardines etc
Sea urchins
Zooplankton
Kelp
Phytoplankton
Examine the food web of an aquatic ecosystem. Local fishermen are overfishing tuna, cod, and sardines. Select ALL of the
statements that accurately predict how this would affect the rest of the community.
A)
Sea urchins will decrease.
B)
Kelp overgrowth will occur.
Zooplankton overgrowth would occur.
D)
Sea otter populations will decrease.
E)
Harbor seal populations will decrease.

Did you get the answer?

Explanation:

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.

when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.