On your exotic scuba diving Spring Break trip to the Great Barrier Reef, you com
ID: 9427 • Letter: O
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
1st question, the 4 different phyla 1) Cnidaria: which include corals and some jellyfish 2) Sipuncula, commonly known as Peanut worms 3) Annelida, on reefs most commonly found as Bristle worms 4) Ctenophora, which include some jellyfish as well Ways to distinguish amongst them could include the following: 1. Cnidaria have 1 opening to eat and expel waste while Ctenophora have 2 openings 2. You could look at a cross section of them and determine if there is any symmetry. 3. How they capture there food is different. 2nd question, parasites Phyla 1. Platyhelminthes (parasite worm that causes Bilharzia), mode of transport would be a direct entering into your skin by the free swimming cercariae. 2. Arthrapoda (sea lice) mode of transport is to get on your skin and bite you generally when you are on the beach 3. Nematoda (roundworms), they are just so abundant and found in everything on the planet 4. Firmacutes (Staph infection) can cause necrotizing fasciitis, can get this from oysters or crabs
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