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What are the specific attributes that define arthropods?

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What are the specific attributes that define arthropods?

All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages. The major arthropod classes can be separated by comparing their number of body regions, legs, and antennae.

What is an arthropod easy definition?

Definition of arthropod : any of a phylum (Arthropoda) of invertebrate animals (such as insects, arachnids, and crustaceans) that have a segmented body and jointed appendages, a usually chitinous exoskeleton molted at intervals, and a dorsal anterior brain connected to a ventral chain of ganglia.

What are 3 of the defining characteristics of arthropods?

The important characteristics of arthropoda include: They possess an exoskeleton. They have jointed appendages. Their body is segmented.

What are the 4 main classes of arthropods?

Arthropods are divided into four major groups:

  • insects;
  • myriapods (including centipedes and millipedes);
  • arachnids (including spiders, mites and scorpions);
  • crustaceans (including slaters, prawn and crabs).

How are arthropods classified?

Arthropods are traditionally divided into 5 subphyla: Trilobitomorpha (Trilobites), Chelicerata, Crustacea, Myriapoda, and Hexapoda. Myriapoda is divided into four classes: Chilopoda (centipedes), Diplopoda (millipedes), Pauropoda, and Symphyla. Millipedes were likely the very first animals to live on land.

What makes an arthropod an arthropod?

Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and cuticle made of chitin, often mineralised with calcium carbonate. The arthropod body plan consists of segments, each with a pair of appendages. Arthropods are bilaterally symmetrical and their body possesses an external skeleton.

Why are arthropods called arthropods?

The word arthropod (from the Greek root words arthro- meaning joint and -pod meaning foot) refers to a unique feature of the group—jointed legs, called appendages, which vary widely in number and function. Appendages are used for eating, feeling, sensing, mating, respiring, walking, or defense.

What is arthropod quizlet?

arthropod. Definition: An invertebrate that hes an exrnal skeleton, a segmented body, and jointed appendages.

What two characteristics do all arthropods have?

All arthropods share these characteristics:

  • Exoskeleton. An exoskeleton is the supporting structure on the outside of the body of an arthropod.
  • Segmented bodies.
  • Jointed appendages such as mouthparts and antennae.
  • Bilateral symmetry.
  • Dorsal blood vessel.
  • Ventral nerve cord.

What are the 3 types of arthropods?

Types of Arthropods

  • insects.
  • arachnids.
  • crustaceans.
  • myriapods.

What are 5 examples of arthropods?

arthropod, (phylum Arthropoda), any member of the phylum Arthropoda, the largest phylum in the animal kingdom, which includes such familiar forms as lobsters, crabs, spiders, mites, insects, centipedes, and millipedes.

What are the 7 classes of arthropods?

Arthropod Classes

  • Arachnid. the Class of Arthropods that includes spiders, mites, ticks, scorpions, pseudoscorpions and harvestmen.
  • Chilopoda.
  • Collembola.
  • Crustaceans.
  • Diplopoda.
  • Diplura.
  • the largest Class of arthropods and the most diverse group of animals in the world.
  • Myriapoda.