WORMS - MICROSCOPIC VIEWS,spiny-headed worms,roundworms,horsehair worms,flatworms,1894 Original Antique Wood Engraving - Antique Prints and Antique Maps from Vintage-Views.com

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Antique Prints and Antique Maps from Vintage-Views.com - Natural History Prints - Invertebrate Zoology-Insects-Entomology - WORMS - MICROSCOPIC VIEWS,spiny-headed worms,roundworms,horsehair worms,flatworms,1894 Original Antique Wood Engraving

WORMS - MICROSCOPIC VIEWS,spiny-headed worms,roundworms,horsehair worms,flatworms,1894 Original Antique Wood Engraving

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A worm is an elongated soft-bodied invertebrate animal. The best-known is the earthworm, a member of phylum Annelida, but there are hundreds of thousands of different species that live in a wide variety of habitats other than soil. Originally the word referred to any creeping or a crawling animal of any kind or size, such as a serpent, caterpillar, snail, or the like (this old usage is preserved in the name "slowworm", actually a lizard). Later this definition was narrowed to the modern definition which still includes several different animal groups. Major phyla include: * Acanthocephala (spiny-headed worms) * Annelida (segmented worms) * Chaetognatha (arrow worms) * Gnathostomulida (jaw worms) * Nematoda (roundworms) * Nematomorpha (horsehair worms) * Nemertea (ribbonworms) * Onychophora (velvet worms) * Platyhelminthes (flatworms) * Sipuncula (peanut worms) Other invertebrate groups may be called worms, especially colloquially. Many insect larvae are called worms, such as the railroad worm, woodworm, glowworm, or bloodworms. Worms may also be called helminths, especially in medical or terminology when referring to parasitic worms, especially the Nematoda (roundworms) and Cestoda (tapeworms). Hence "helminthology" is the study of parasitic worms. When an animal, such as a dog, is said to have worms, it means that the dog is infested with parasitic worms, typically roundworm or tapeworm. Worm species differ in their abilities to move about on their own. Many species have bodies with no major muscles, and cannot move on their own. They must be moved by forces or other animals in their environment. Many species have bodies with major muscles, that let them move on their own. They are a type of muscular hydrostat.

Published for Joseph Meyer Meyers Konversations

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SKU	0527839k6
Shipping Code	1.00 kg
Price:	US$15.00

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