life on our home planet is represented by an extremely wide range of different creatures.The characteristics peculiar to them, are determined by a number of factors - the degree of evolutionary development, environmental conditions, and so on.Three fundamental properties characteristic of all organic matter, concluded in the exchange of matter and energy with the entire environment (this is the main feature of all living things) in irritability (that is, the ability to respond to external stimuli) and reproduction (playback own species).Levels of organization of life, biology, which is very rich in the world - is organized hierarchical structure of biosystems.The hierarchy in this area tend to be built on the principle complication of the structure of organisms.Most often, the biologists are seven stages in the development of life, molecular genetic, followed by cellular level, tissue level, organs, developmental (in other words - organismic), population, species, ecosystem and global.Let us examine them in detail.
Levels of organization of life on Earth
Molecular Genetics.This level is represented by the smallest particles of organic matter, various macromolecules: nucleic acids, carbohydrates, proteins and other organic substances.There arise very important biological processes, such as encoding and transmission of genetic information, metabolism, digestion, energy conversion, and so on.
cellular level of organization of life.The cell is the structural and functional unit of all organisms on the planet.Therefore, the processes that take place here, at the core of all living things.
Cloth level.Is a collection of cells that are similar in origin, structure, and functions.This also includes the intercellular substance.
Organ level of organization of life.Any body is a kind of an isolated part of the body, having a certain shape, location, structure, as well as performing a specific function.
organismal level (or developmental).The body is a complete single-celled or multicellular living system, capable of independent operation, maintenance of homeostatic processes.The body - an ordered set of the plurality of cells, tissues and organs.
Population (or species), the level of organization of life.View is a collection of individuals, which are similar in structure to each other and have a common origin.Such individuals freely interbreed, giving fertile and viable offspring.At the population (s) of the level of the process of speciation, stimulated processes of evolution.
ecosystem (or biogeocenotic).Biogeocoenosis called historically developed set of organisms of different species, which interact with a variety of natural factors in the same range.
Global (Biosphere) the level of organization of life.Biosphere - a system of higher rank, covering all phenomena and processes of life in the hydrosphere, lithosphere and atmosphere, as well as bringing together all ecosystems into a single complex.On the level of the biosphere linked all living organisms of the planet.
