Marissa is walking along the beach and finds an unknown organism on the shore. It has bilateral symmetry, a nongelatinous, nonsegmented body that is bigger than 0.5 mm, and a shell. In which phylum can the organism be classified?

Answer: MolluscaMarissa finds an unknown organism belonging to phylum Mollusca because as she described it, it has bilateral symmetry, a non-gelatinous, non-segmented body that is bigger than 0.5 mm and has a shell. Examples of animals under Phylum Mollusca are clams, muscles, snail, squid, octopus.