Questions and Answers
What are the three main classes of Arthropods?
Insects, Crustaceans and Arachnids.
What are the main morphological features of Arthropods?
They are Metameric beings (segmented body), they have an exoskeleton made of chitin and they present articulated limbs.
Division of the body into head, thorax and abdomen is a characteristic of.....?
Insecta
Most primitive arthropods belong to the class...?
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This class has 6 legs.
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This class has 8 legs.
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This class has 10 to 14 legs.
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This class has at least 20 legs.
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What class does a lobster belong to?
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What class is a spider from?
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Study Notes
Classification of Arthropods
- Three main classes: Insects, Crustaceans, Arachnids.
- Arthropods are characterized by a segmented body structure known as metamerism.
- They possess an exoskeleton made of chitin, offering protection and support.
- All arthropods feature articulated limbs that enhance mobility.
Morphological Features
- Insects are distinguishable by their body division into three parts: head, thorax, and abdomen.
- Onychophora represents the most primitive group of arthropods, showcasing early evolutionary traits.
Class Specific Features
- Insects are equipped with six legs, which is a defining characteristic of the class.
- Arachnids have eight legs, differentiating them from insects.
- Crustaceans, including lobsters, typically possess 10 to 14 legs.
- Myriapods are characterized by having at least 20 legs, indicating greater segmentation.
Examples of Arthropods
- Lobsters are members of the Crustacean class.
- Spiders belong to the Arachnid class.
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Description
Test your knowledge on the classification and morphological features of arthropods with this interactive quiz. Explore the main classes, structural characteristics, and unique divisions of their bodies. Perfect for biology students and enthusiasts alike!
