Which of our 9 groups of animals does NOT contain invertebrates?Group of answer choiceschordatesannelidsmolluscsarthropodsnone of the above
Question
Which of our 9 groups of animals does NOT contain invertebrates?
Group of answer choices
- chordates
- annelids
- molluscs
- arthropods
- none of the above
Solution
To determine which group of animals does NOT contain invertebrates, we can analyze the options provided:
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Chordates: This group includes vertebrates such as mammals, birds, reptiles, amphibians, and fish. They are characterized by having a spinal cord, a notochord, and typically a skull. Chordates do contain vertebrates and do not include invertebrates as a defining characteristic.
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Annelids: This group consists of segmented worms, which are invertebrates. Examples include earthworms and leeches.
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Molluscs: This diverse group includes snails, clams, squids, and octopuses, all of which are invertebrates.
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Arthropods: This group includes insects, arachnids, and crustaceans, all of which are also invertebrates.
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None of the above: This option implies that all listed groups contain invertebrates.
Final Answer
The group that does NOT contain invertebrates is Chordates.
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