Biology 3.1 Internal Introduction: Porcellio scaber or the slater, as it is commonly called, belongs to the Isopoda order and is a part of the arthropod class Crustacea. Where most Crustacean relatives of the slater are marine, such as the water flea or the lobster, slaters have become fully terrestrial with seven pairs of legs and a flat, segmented body which they can roll up in for safety. P. scaber is commonly found in New Zealand despite being native to Europe. Slaters tend to live in dark
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billion years ago, since then it has evolved and flourished. Within the kingdom Animalia, it alone consists of 35 phyla. Two of which are Onychophora and Annelida. Onychophora are believed to be a possible link between two phylums of Annelids and Arthropods as it carries characteristics of both groups. This essay seeks to compare and contrast between the earthworms from phylum Annelida and the velvet worms from phylum Onychophora. Internal Velvet worms and earthworms are superficially similar animals
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Tardigrades (Water Bears) Tardigrades are microscopic animals, indestructible creatures that can live up to 100 years. There are over 1,000 known species of tardigrades. The water bears mouth can telescope outward that reveal sharp teeth that allowed the water bear to grab on to the food. Tardigrades also can swim, and waters are there natural habitat, and are expected to avoid extinction, because of how tough they are. Tardigrades have podgy faces with folds and wrinkles of flesh, and eight legs
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Visitors to the Pacific coast of Japan may see a large crab with long legs like a spider. This animal is the Japanese Spider Crab. It is a crab that is a member of the family Inachidae. The Japanese Spider Crab is an unusual animal that is threatened by fishery. Japanese Spider Crabs most often inhabit the sandy and rocky bottom of the continental shelf and slope at an average depth of 150 - 300 meters. They like to
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tissue 3 Vertebrate anatomy 3.1 Fish anatomy 3.2 Amphibian anatomy 3.3 Reptile anatomy 3.4 Bird anatomy 3.5 Mammal anatomy 3.5.1 Human anatomy 4 Invertebrate anatomy 4.1 Arthropod anatomy 5 Other branches of anatomy 6 History 6.1 Ancient 6.2 Medieval to early modern 6.3 Late modern 7 See also 8 Notes 9 Bibliography 10 External links Definition Human compared to elephant
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Architeuthis dux’ full body length includes its head, body, feeding tentacles, and arms. The Giant Squid is considered to be the largest animal in a few areas: it is the largest known invertebrate, mollusk, and Cephalopod (Vaughan). The largest Giant Squid that has been found was around 43 feet long and weighed around a ton, and the females appear to be around ten feet longer than males, some scientists believe that that is because there are eight different species of giant squid (“Giant Squid”;
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azteca (personal observation) The H. azteca have two pigmented eyes situated in between two antennas to aid the amphipod detect light and convert the waves into chemical reactions in the neurons by the ganglia of the amphipod. Similarly to other arthropods, H. azteca is segmented into three primary categories—head, thorax and abdomen, with the addition of a tail. The head, thorax and abdomen are part of the chitinous
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BIODIVERSITY Biodiversity is the degree of variation of life. This can refer to genetic variation, species variation, or ecosystem variation within an area, biome, or planet. Terrestrial biodiversity tends to be highest at low latitudes near the equator, which seems to be the result of the warm climate and high primary productivity. Marine biodiversity tends to be highest along coasts in the Western Pacific, where sea surface temperature is highest and in mid-latitudinal band in all oceans. Biodiversity
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Earthworms When an earthworm is dissected, the intestine can be seen in the cross-section anterior to the gizzard. An earthworm’s digestive system includes the gizzard, intestine, crop, esophagus, and pharynx. When an earthworm eats, organic matter along with soil enters its mouth and goes through the pharynx. Next it passes through the esophagus, and is then stored in the crop before moving into the gizzard. In the gizzard, the soil eaten by the earthworm grinds its food completely. Finally
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Tittle: Useful medicinal compounds derived from animals In modern medication, monoclonal antibody has been used to treat various kinds of disease. For cancer therapy, monoclonal antibody is extremely success. Monoclonal antibody, an immune protein with specific binding site and purified from mouse, can bind with target protein (Campbell NA, 1996). Such as: Specific antigen, growth factor and so on. As tumor cell always avoid immune system and even try to suppress the immune response, they always
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