Podcast
Questions and Answers
Which order of insects is commonly known for its members that are characterized by two pairs of wings?
Which order of insects is commonly known for its members that are characterized by two pairs of wings?
- Ephemeroptera
- Blattodea
- Dermaptera
- Odonata (correct)
What is the primary characteristic of the subclass Apterygota within the class Insecta?
What is the primary characteristic of the subclass Apterygota within the class Insecta?
- Develops through complete metamorphosis
- All members are winged
- Includes only aquatic insects
- Members are wingless (correct)
Which of the following insects belongs to the order Anoplura?
Which of the following insects belongs to the order Anoplura?
- Head louse (correct)
- German cockroach
- Common fruit fly
- Great green bush-cricket
Identify the insect that is classified under the order Hemiptera.
Identify the insect that is classified under the order Hemiptera.
Which of the following insects is classified under the order Mantodea?
Which of the following insects is classified under the order Mantodea?
Which insect is classified as a member of the order Lepidoptera?
Which insect is classified as a member of the order Lepidoptera?
What characteristic distinguishes insects in the class Chilopoda?
What characteristic distinguishes insects in the class Chilopoda?
Which insect is known as the common house mosquito?
Which insect is known as the common house mosquito?
Which of the following describes the structural organization of Trilobitomorpha?
Which of the following describes the structural organization of Trilobitomorpha?
Which subphylum includes organisms with chelicers and pedipalps?
Which subphylum includes organisms with chelicers and pedipalps?
Which of the following statements is true about the reproductive strategy of most Crustacea?
Which of the following statements is true about the reproductive strategy of most Crustacea?
What is a defining characteristic of the Chelicerata subphylum?
What is a defining characteristic of the Chelicerata subphylum?
What feature is typically found in Arachnida but not in Crustacea?
What feature is typically found in Arachnida but not in Crustacea?
Which structure do Arthropods utilize for growth due to their exoskeleton?
Which structure do Arthropods utilize for growth due to their exoskeleton?
What accurately describes the legs of organisms in the subphylum Branchnomorpha?
What accurately describes the legs of organisms in the subphylum Branchnomorpha?
Which principle characteristic distinguishes the subphylum Tracheata?
Which principle characteristic distinguishes the subphylum Tracheata?
Flashcards
Insects: Class Insecta
Insects: Class Insecta
Class of Arthropods, characterized by one pair of antennae, three body segments (head, thorax and abdomen), 3 pairs of legs (on thorax), a tracheal respiratory system, a Malphigian tubule excretory system, and often have wings. This group also includes many pest species.
Subclass Apterygota
Subclass Apterygota
A subclass of Insecta which are wingless. These insects have a more primitive body plan, with a more elongated body and fewer segments. It is believed that the wingless insects evolved from winged ancestors.
Subclass Pterygota
Subclass Pterygota
A subclass of Insecta which are winged. These insects have evolved wings to become very successful, exploiting a variety of ecological niches.
Hemimetabolous Insects
Hemimetabolous Insects
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Holometabolous Insects
Holometabolous Insects
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Order Dermaptera - Earwigs
Order Dermaptera - Earwigs
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Order Blattodea - Cockroaches
Order Blattodea - Cockroaches
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Order Orthoptera - Grasshoppers, Crickets
Order Orthoptera - Grasshoppers, Crickets
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Arthropods
Arthropods
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Exoskeleton
Exoskeleton
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Ecdysis
Ecdysis
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Mixocoel
Mixocoel
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Head
Head
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Thorax
Thorax
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Abdomen
Abdomen
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Chelicerata
Chelicerata
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Study Notes
Phylum Arthropoda
- Largest animal group
- Heterogeneous segmentation
- Reduced coelom, forms mixocoel (with haemolymph)
- Body structure:
- 3 body parts: head, thorax, abdomen
- 2 body parts: cephalothorax, abdomen
- Segmented legs (6 or more)
- Cuticle
- Regular ecdysis (molting)
Subphyla
-
Trilobitomorpha
- Extinct
- Homonomous segmentation
- 3 parts: head, thorax, cluster of segments
- Legs made of 2 segments
- Armor
-
Chelicerata
- Cephalothorax + abdomen
- 4 pairs of legs
- Exoskeleton
- Extracorporeal digestion
- Tracheae, pulmonary sacs
- Modified metanephridium or Malphigian tubule system
- Simple eyes
- Gonochoristic, sexual dimorphism, direct or indirect development
- Predacious or ectoparasitic
- Chelicers and pedipalps on cephalothorax
- Poisonous glands
- Spinnerets
-
Branchiata (Class Crustacea)
- Cephalothorax + abdomen
- Many legs
- Thick exoskeleton, armor
- Gills
- Antennal or maxillary glands
- 2 pairs of antennae
- Statocyst, compound eyes
- Gonochoristic, indirect or direct development, larval stages (nauplius, zoea)
- 2 pairs of mandibles + 2 pairs of maxillae
-
Tracheata
- Head + thorax + abdomen
- 3 pairs of legs
- Exoskeleton
- Metamorphosed mouth organs (piercing, sucking, licking)
- Tracheae
- Malphigian tubule system
- 1 pair of antennae
- Gonochoristic, direct or indirect incomplete/complete metamorphosis
- 1 pair of mandibles, 2 pairs of maxillae
- Can have wings
Classes within Tracheata
- Diplopoda: Millipedes (e.g., Lithobius forficatus)
- Chilopoda: Centipedes (e.g., Lithobius forficatus)
- Insecta:
- Apterygota: Wingless insects (e.g., Lepisma saccharina)
- Pterygota: Winged insects
- Ephemeroptera: Mayflies (e.g., Ephemera vulgata)
- Odonata: Dragonflies (e.g., Libellula depressa, Aeschna grandis)
- Dermaptera: Earwigs (e.g., Forficula auricularia)
- Blattodea: Cockroaches (e.g., Blatella germanica, Blatta orientalis)
- Ensifera: Bush-crickets and crickets (e.g. Tettigonia viridissima, Gryllus campestris)
- Mantodea: Praying mantises (e.g., Mantis religiosa)
- Orthoptera: Grasshoppers and locusts (e.g., Stenobothrus lineatus)
- Hemiptera: True bugs (e.g., Cimex lectularius, Pyrrhocoris apertius)
- Homoptera: Aphids, cicadas, and scale insects (e.g., Eriosoma lanigerum, Eulecanium corni)
- Heteroptera: Water striders and other bugs (e.g. Gerris lacustris Hydrometra stagnorum)
- Diptera: Flies and mosquitos (e.g., Culex pipiens, Anopheles maculipennis, Tabanus bovinus, Musca domestica, Drosophila melanogaster, Sacrophaga carnaria)
- Hymenoptera: Bees, wasps, and ants (e.g., Formica rufa, Vespa vulgaris, Bombus terrestris, Apis mellifera)
- Aphaniptera: Fleas (e.g., Pulex irritans)
- Lepidoptera: Butterflies and moths (e.g., Vanessa atalanta, Acherontia atropos, Papilio machon, Bombyx mori, Laspeyresia pomonella, Pieris brassicae , Tineola bisselliella)
- Coleoptera: Beetles (e.g., Dytiscus marginalis, Melolontha melolontha, Lucanus cervus, Necrophorus vespillo, Carabus cancellatus, Phausis splendidula, Leptura rubra, Oryctes nasicornis, Coccinella septempunctata, Colorado potato beetle, Ips typographus, Tenebrio molitor)
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Description
Test your knowledge on Phylum Arthropoda, the largest animal group characterized by its unique body structure and segmentation. This quiz covers various subphyla including Trilobitomorpha, Chelicerata, and Crustacea. Explore key features such as leg structures, exoskeletons, and reproduction methods.
