Samuels BIO Invertebrates

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Which invertebrate phylum includes roundworms, many of which are parasitic?

Which invertebrate phylum includes clams oysters, snails, squids, octopi and cuttlefish?

Which invertebrate phylum includes starfish, sand dollars, sea urchins and sea cucumbers, which have a spiny endoskeleton?

Which invertebrate phylum did the organism that are Spongebob's house belong to?

Which invertebrate phylum includes segmented worms such as earthworms and leeches?

Which invertebrate phylum includes flatworms, with many being parasitic?

Which invertebrate phylum includes jellyfish, sea anemones, corals and hydras; some have tentacles with stinging cells?

Which invertebrate phylum includes sponges which have hollow bodies and no nervous system?