PMT 106 Entomology Unit 2 Questions with Correct Answers

International Code of Zoological Nomenclature classification system: (7) Correct Answer 1. Kingdom 2. Phylum 3. Class 4. Order 5. Family 6. Genus 7. Species International Code of Zoological Nomenclature classification system: (7) Example: House fly Correct Answer 1. Kingdom: *Animalia* 2. Phylum: *Arthropoda* 3. Class: *Insecta* 4. Order: *Diptera* 5. Family: *Muscidae* 6. Genus: *Musca* 7. Species: *Musca domestica* Scientific names are written ___ or ___. Correct Answer Italicized or underlined Genus is written ___. Correct Answer Capitalized Bilateral symmetry Correct Answer The halves of the arthropod body, from the tip of the head to the end of the abdomen, are the same internally and externally. The left half of the arthropod body matches right half. Segmented body Correct Answer All arthropods have ___ ___. However, the number of segments will vary across the different classes of arthropods. Three (3) body regions Correct Answer Insects have ___ body regions. Two (2) body regions Correct Answer Crustaceans, millipedes, centipedes, and arachnids have ___ body regions. Paired jointed body appendages Correct Answer Related to bilateral symmetry e.g., legs, antennae, and mouthparts Exoskeleton Correct Answer An external skeleton composed of a protein-like substance called *chitin*, which makes the hard "shell" of arthropods. It is practically indestructible, provides a large area for muscle attachment, prevents or inhibiting desiccation, and provides a means of protecting internal organ systems Discontinuous growth Correct Answer Arthropods undergo ___ growth. They must shed their exoskeleton to grow and reach maturity since the exoskeleton cannot expand and grow as an arthropod matures.