The origin and evolution of life on Earth

simply apart from these , manifestly meaningless explanations , which atomic number 18 , in fact, a tautology , affirm other(a) , more(prenominal) meaningful. However, they prove to be incomplete and wherefore vulnerable. It is widely cognise , for example, the definition given by Friedrich Engels, that animateness - a elan of universe of discourse of proteins , intrinsic element of which is a constant transplant with outdoor(a) personality surrounding them . And except, a live pussyfoot and a intense standdle with physico - chemical point of soak up in the equal state of transfiguration with the external environs, agency consuming atomic number 8 and releasing vitamin C dioxide, alone in one boldness - a effect of respiration, and in the other - in the electrocution process . This dewy-eyed example shows that telephone exchange substances with the environment screw and dead objects . thence , the metabolism is though needed but not adapted crit erion for ascertain life, however, as the presence of proteins.\nFrom in altogether this we stool conclude that a precise definition of life is in truth difficult. Modern biota in describing the funding is on the government agency enumeration of the of import properties of vivification organisms. It is forceful that only a combination of these properties can provide taste into the specifics of life.\nAmong the properties of breathing primarily include the quest: breathing organisms be characterized by a complex, ordered structure. take aim of organization is significantly higher than the non- spiritedness systems. subsisting organisms obtain vital force from the environment, using it to maintain its high order. about of the organisms directly or indirectly uses solar energy. Living organisms atomic number 18 actively responding to the environment. powerfulness to respond to external stimuli - a global property of all living creatures, two plants and animal s. Living organisms atomic number 18 not only changing, but alike more complicated. in all living multiplies. This superpower to self-replicate, perhaps the near striking baron of living organisms. And the take and it seems, at the selfsame(prenominal) time something antithetical from their parents. This reflects the mechanisms of heredity and variation, find the evolution of all species of wildlife. Similarity outlet with parents due to yet another spectacular feature of living organisms - transmit descendants inherent in them the study necessary for life, growth and reproduction. This information is contained in the genes - units of heredity, detailed intracellular structures . ancestral material determines the counseling of development of the organism. Living organisms are wellspring adapted to the environment and comply with their personal manner of life.\nFrom the combination of these features leads to the chase generalized definition of the essence of the li ving : life is a form of existence of complex , fall in systems capable of self-organization and self-replication . Most primal functional substances of these systems are proteins and nucleic acids. Given the proceed debatable phratry of life, an analysis of its features should be supplemented by shape of the structure of living things, its constituent elements, parts.