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Ch. 33 - An introduction to Invertebrates
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All textbooksCampbell 11th EditionCh. 33 - An introduction to InvertebratesProblem 2

Chapter 33, Problem 2

Which phylum is characterized by animals that have a segmented body? a. Cnidaria b. Platyhelminthes c. Arthropoda d. Mollusca

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Hello everyone here We have a question asking which of the following does not describe an arthropod? It has segmented bodies. Yes, they all have segmented bodies. They all have an exoskeleton. They all have jointed appendages. It has a pair of antenna. Arthropods have antenna except spiders, mites, ticks and scorpions. These arthropods have only two body segments and eight legs, but no antenna. So our answer here is the it has a pair of antenna. Not all arthropods have a pair of antenna. Thank you for watching. Bye.
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