On your exotic scuba diving Spring Break trip to the Great Barrier Reef, you com

Question

On your exotic scuba diving Spring Break trip to the Great Barrier Reef, you come upon a cute little organism attached to a rock, waving some dainty tentacles at you. name four different phyla that this critter could be a member of, and list at least 2 unique features of each that would allow you to distinguish between them (the features don’t have to be visible, and could even relate to their developmental cycle).

Unfortunately, the only souvenir that you bring back to Grace from your scuba diving trip is a parasite (could be internal or external). To help your doctor out, list four more phyla (different from the ones above) that “your” parasite might be a member of, the mode of transmission by which you might have picked it up, and one additional fact about each of these creatures (using the same rules as above) that would indicate a way to distinguish between them, so you can properly evict your “houseguest

Explanation / Answer

A cute organism attached to the rock, having tentacles can be grouped into the following phyla- Phylum mollusca - shelled organisms are common. Sexual reproduction is gonochoristic. Phylum cnidaria - Stinging cells nematocytes are present. Gastrovascular cavity is present. Phylum coelentrata - Polyp and medusa forms are seen. No blood and central nervous system. Phylum annelida - worm like. segmentation is seen. These all are having tentacled organisms in their phyla. Main groups of parasites include the following phyla. They are - Acanthocephala, annelida, nematoda, platyheliminthes. These organisms can be external or internal parasites, with different characters characteristic to each phyla.

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