You are working on a summer internship with a famous marine scientist. Your job is to use your microscope to examine and identify specimens based on morphology. You also have some chemical analysis result. While examining a specimen, you notice: • it contains collagen and proteogylcans • it has three tissue layers, but no coelom • it was observed as a parasite inside the tissues of another organism you collected Which of the following taxonomic groups best matches this description? Phylum Annelida Phylum Apicomplexa Phylum Arthropoda Phylum Bacillariophyta Phylum Cnidaria Phylum Echinodermata Phylum Mollusca Phylum Nematoda Phylum Platyhelminthes

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A:

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Q: 2020/10/29 09:28

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Q: Scyphozoa

A:

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Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.