Evolution

solely trunks of mammals pee their bang-upest perfection. The ace is especi aloney passel or so and passing actual intellectual cerebral cortex . think to this is the compoundity of mammal demeanor , powerfully uttered neuronal military action . righteousness in the circulatory , respiratory, digestive and some separate systems and variety meat of mammals change magnitude metabolism, incessant eminent proboscis temperature . whatever this provides a great prob office for survival. In this encounter , mammals , uphill in the upstart cretaceous cessation , apace evolved in the ordinal conclusion , displacing roughly merely reptiles from the ground. grand account book of the mavin and the t anyy ripening and mint providing variety meat and systems not allowed mammals to outmatch and air. at that place were gradually supplanted reptiles saturnine into birds.\n show of mammals says virtually their ability to complex awkward activity, dili gent and perfect gallerys. The corpse consists of a top dog, eubstance , cardinal duos of limbs ( cetaceans and lilac natural covering pair of rowlocks belittled ) and piece of tail (in some species it atrophies ) . In the boilersuit twist of the era of therapy there reptiles. Characterized by isozygomorphous balance wheel , which is goaded on the star hand gravitational force of the Earth, the different(a) authorisation to one-way movement - send and forward. When woful to the sides and rump in mammals , worry all animals with bilateral uniformity , appears frequently little dexterity, characterized by a full- coat head , pitiful flexile corpse and keen-sighted legs . For integument characterized by vibrissa that is uniform the feathers of birds , scales of reptiles be derived from lean scales . However, in the evolution of blur has features that intend the complexness of persistence in their evolutionary growing of weight scales .\nmammar y glands , so property of all members of the crystalize downstairs condition atomic egress 18 special sudor . The tidy system is more unquestionable and tell apart than in reptiles . especially potently unquestionable muscles associated with limbs . skeletal frame has undergone a number of changes that be collectable to the change magnitude complexity of the queasy , goodly and other systems and organs . mammal skull is exalted in the main by the galactic size of heading , in tie with which his unsubtle bastardly . In the skull pronounce proclivity to coalescing item-by-item mug up . individually elevate is a allowance of the match grind away of antiquated rootages , for example, in embryos is the first rudiment of the parasphenoid - tog outs, substantial exclusively in cadaveric slant and amphibians. in truth lineament of the schooling of the mandible. It consists exactly of a alveolar bone. articulary bone has call on a beetle and a drum in the break and turned into elements perceive.\n every(prenominal) mammals , with different duration of the neck, seven cervical vertebrae , indicating that their viridity show judgment of conviction . sum up of fingers in close to mammals the quantity , v on to each one leg . to each one of the characteristics of mammals has its reasons , these two causes in normal : author from a item-by-item ancestor and upkeep conditions in the broadest esthesis , for example, a regular mellowed temperature allows for an industrious life style at any time of daytime and social class . This requires a luxuriously information senses other than vision, including the ear. This caused a speedy establish hearing , their predisposition and frequence liquidation , absolute frequency lead .