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Questions and Answers
What is the major component of the sclerotized exoskeleton of insects?
What is the major component of the sclerotized exoskeleton of insects?
Which subphylum of Phylum Arthropoda includes insects, centipedes, and millipedes?
Which subphylum of Phylum Arthropoda includes insects, centipedes, and millipedes?
In which animal group would you expect to find fang-like mouthparts or chelicera?
In which animal group would you expect to find fang-like mouthparts or chelicera?
What characterizes Chelicerata within Phylum Arthropoda, besides the pair of appendages near the oral opening?
What characterizes Chelicerata within Phylum Arthropoda, besides the pair of appendages near the oral opening?
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Which Phylum has a segmented body that bears a varying number of paired and segmented appendages?
Which Phylum has a segmented body that bears a varying number of paired and segmented appendages?
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What is the function of the tubular heart in the grasshopper's circulatory system?
What is the function of the tubular heart in the grasshopper's circulatory system?
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What is the scientific study of insects and related arthropods called?
What is the scientific study of insects and related arthropods called?
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Study Notes
Phylum Arthropoda
- Characterized by jointed legs or appendages and segmented body with paired and segmented appendages
- Bilateral symmetry and sclerotized exoskeleton containing chitin
- Open circulatory system with internal features
Subphyla of Phylum Arthropoda
- Chelicerata: characterized by a pair of appendages near oral opening
- Chelicerata examples: spiders, mites, ticks, scorpions, horseshoe crabs
- Mandibulata: characterized by a pair of grinding structures (mandibles and maxillae) associated with mouthparts
- Mandibulata examples: insects, centipedes, millipedes
Insect Circulatory System
- Open circulatory system in grasshopper
- Blood pumped by tubular heart that passes through aorta and into body spaces, bathing tissues
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Description
Explore the scientific study of insects and related arthropods, including the characteristics of Phylum Arthropoda, jointed legs, segmented body, bilateral symmetry, and more. Learn about the Class Insecta and the internal features of insects.
