The Effect Of Arthropods On Our Earth - 1289 Words

Introduction Arthropods are fundamental animals to life on earth. For example, many of these arthropods help plants pollinate. Others can carry diseases from host to host, but their success story is due to how long they have been present on earth. This has led the high diversity within the phylum Arthropoda, with more than ten million different species, making up more than eighty percent of the organisms in kingdom Animalia. This only includes classified species; it is believed millions of other species exists, but have not been discovered. These arthropods can be found in various places; for example most are terrestrial and others are aquatic (Hickman and Roberts, 1994) . Evolution has helped them to conquer the skies as well. A reason as to why it is believed unclassified species exist is because they may live in remote areas, such as deep in a tropical rainforests. The arthropods share many characteristics facilitating their mass divergence. First of all they are part of kingdom Animalia; characteristics that make an arthropod an animal consist of being multicellular organism lacking cell walls. Their bodies consist of true tissue for sensory and movement, which aids in activities such as finding food and finding a mate. Arthropods’ bodies have three germ layers, or triploblastic. These germ layers consist of an endoderm, mesoderm, and an ectoderm. The endoderm develops into the digestive organs; the ectoderm develops into muscular tissue, and the ectoderm into theShow MoreRelatedThe Phenomenon Of Reproductive Parasitism And Its Evolutionary Implications1210 Words   |  5 Pagesorigin of major life forms on Earth and in the generation of biological diversity. 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