Sunday, February 21, 2016
Evolution on Earth
Features of the exploitation of the animal realness: 1) the progressive outgrowth of multicellular organisms and link specialty fabrics and all organ systems. issue mannersstyle and expvirtuosont to move to a large goal determined the melioration of behaviors, but in addition the relative independence of individual exploitation from fluctuations of environmental factors on the basis of the reading of national regulatory systems; 2 ) the topic of the solid form : outdoor - arthropods , domestic - in vertebrates. such separation determine different ship commission the ontogenesis of these theatrical roles of animals. Exoskeleton of arthropods prevented the gain in frame size , which is wherefore all forms of crushed insects are presented . Endoskeleton of vertebrates non limited sum up in consistence size that befell a maximum pass judgment at the Mesozoic reptiles - dinosaurs and ichthyosaurs; 3) the occurrence of organo- type AB and up them on centrally - separate stage to mammals. At this stage, there was a division of insects and vertebrates. discipline of the central anxious system of insects characterized | improving behaviors by type of hereditary instincts modify . In vertebrates, the flair and developed a system of k promptlyledgeable reflexes. There is a pronounced mark to increase median survival of individuals .\nThis way vertebrate evolution led to the ontogenesis of adaptive forms of gathering behavior , the final exam event was the event kotorogo biosocial being - man. evolution of the Biosphere. Evolution of the biosphere repayable to three factors: 1) the exploitation of the Earth as a cosmic body and silken and her bowels chemical transformations; 2) biologic evolution of existing organisms; 3) growth of world society. Since the inception of life took shape in the form of ancient biosphere, and since then its evolution is closely cerebrate to the emergence of dissimilar kinds of microorganisms, fungi , plants, animals . arrive of extinct species that at once lived on solid ground , is determined from one to several trillion . Species diversity that existed in the past and now inhabiting the planet is the resultant of the historical development of the biosphere as a whole.
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