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Are Myriapods insects?
Myriapods are wingless bugs with lots of body segments. Most of the segments carry a pair of legs (two pairs in millipedes). They typically grow by forming extra segments. Examples of myriapods are centipedes and millipedes.
What are insects classified?
Insects (from Latin insectum) are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae.
What phylum do crayfish belong to?
phylum Arthropoda
crayfish, also called crawfish or crawdad, any of numerous crustaceans (order Decapoda, phylum Arthropoda) constituting the families Astacidae (Northern Hemisphere), Parastacidae, and Austroastracidae (Southern Hemisphere).
What classification is a centipede?
Centipedes
House Centipede/Class
Do myriapods have a thorax?
The term Myriapoda, however, is still universally used as vernacular to contrast these arthropods to the insects, also terrestrial and tracheate, with these latter being easily identified by their smaller number of legs (three pairs), the strong differentiation of the trunk into thorax and abdomen, and the generalized …
What kind of animal is a crayfish?
Written By: Crayfish, also called crawfish or crawdad, any of numerous crustaceans (order Decapoda, phylum Arthropoda) constituting the families Astacidae (Northern Hemisphere), Parastacidae, and Austroastracidae (Southern Hemisphere). They are closely related to the lobster. Over half of the more than 500 species occur in North America.
What is the phylum of a crawfish?
Crayfish, also called crawfishor crawdad, any of numerous crustaceans (order Decapoda, phylum Arthropoda) constitutingthe families Astacidae (Northern Hemisphere), Parastacidae, and Austroastracidae (Southern Hemisphere). They are closely related to the lobster.
What is the reproductive system of crayfish?
The Reproductive System of Crayfish In male crayfish, testes produce spermatids that are transported to and accumulate in the vas deferens. The testes (paired and soft organs) are located near and beneath the heart. Each of them includes numerous tiny tubes, called seminiferous tubules.
Where do crayfish live in the southern hemisphere?
Parastacidae: Cherax pulcher. There are three families of crayfish, two in the Northern Hemisphere and one in the Southern Hemisphere. The Southern Hemisphere (Gondwana-distributed) family Parastacidae lives in South America, Madagascar and Australasia, and is distinguished by the lack of the first pair of pleopods.