Phylum Arthropoda
Classes of Arthropods:
Crustacea. Lobsters, crayfish, crabs, and shrimp belong to this arthropod class. These organisms contain two body parts the cephalothorax and abdomen. Two compound eyes and two pairs of antennae. They contain appendages modified for grabbing and feeding. Their excretory organ consists of a sac-like green gland. Their gas exchange is through gills. Many species contain 5 pair of walking legs. The circulatory system is open. Barnacles are sessile crustaceans that have a modified exoskeleton in the form of a shell.
Insecta. This class contains the most prolific group of animals that has ever populated the earth. The exist in almost every environment known to man. Their ability to fly and live off of plants and flowers has given them this success. Insects contain three body parts: head, thorax, and abdomen. They contain one pair of antennae, a pair of compound eyes, and various modified mouth parts. The thorax contains the six legs and two pair of wings. They contain a well developed digestive system, and a ventral nerve cord. Their circulatory system is open and it contains a dorsal heart. They contain a tracheal respiratory system and excrete their liquid waste through Malpighian tubules. Many species young undergo complete, incomplete or gradual metamorphosis.
Arachnida. Spiders, ticks, mites, and scorpions contain simple eyes, two body parts the cephalothorax and the abdomen. They contain 4 pair of walking legs attached to the cephalothorax. Many breathe through book lungs. Many of these organisms are poisonous and parasitic.
Chilopoda and Diplopoda. These classes contain the centipede and millipede. Centipedes contain one pair of walking legs per segment and are carnivorous. The millipedes contain 2 pairs of walking legs per segment and are vegetarians.
2007-03-11 04:48:39
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answer #1
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answered by ATP-Man 7
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Arthropods are the Phylum Arthropoda.
2007-03-11 11:17:13
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answer #2
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answered by puppyraiser8 4
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The various units of classification, called taxonomic groups, are kingdom, phylum, class, order, family, genus and species. If you are asking what taxonomic group does Arthropods come under, then yes, its Phylum Arthoropoda which belongs to Kingdom Animalia. :)
2007-03-11 11:12:18
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answer #3
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answered by Bel 1
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Phylum arthropoda.
2007-03-11 10:30:58
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answer #4
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answered by Mycroft 5
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