What is Biological process?
[[Biology]] is the [[science]] that deals with living things. In general: #Living organisms respond to the stimuli # #Living organisms interact with their [[environment]], which includes members of the same and other [[species]]. #Living organisms have a [[metabolism]]: they take in [[food]] which they then convert as [[energy]] to perform their daily or day to day activities. #Living organisms [[reproduction|reproduce]]: they give birth to others of the same species, in order to continue their ancestral living. This is not true of all ''individual'' organisms. In [[eusocial]] organisms, some castes cannot reproduce. But, since the sterile workers are all the products of a single queen, they are one collective. Many things that appear to be one organism are in fact several living together. An example is [[lichen]]. Lichen is a [[symbiosis]] between a [[cyanobacteria|blue-green alga]]<nowiki/>e and [[fungus|fungi]]. Organisms that live together may not reproduce together, but their life processes are bound up together. They help each other to live. == Examples of biological processes == * [[Physiology|Physiological process]], those processes specifically pertinent to the functioning of integrated living units: cells, tissues, organs, limbs, and organisms. * [[Reproduction]] * [[Digestion]] * Response to stimulus: (in terms of movement [[impulses]], [[secretion]], [[enzyme]] production, [[gene expression]], etc). In [[animals]], this is mainly the function of the [[nervous system]]. * Other processes: [[cell growth]], [[cellular differentiation]], [[fermentation]], [[fertilisation]], [[germination]], [[tropism]], [[Hybrid |hybridisation]], [[metamorphosis]], [[morphogenesis]], [[photosynthesis]], [[transpiration]]. == Modern ideas == Modern ideas from [[molecular biology]], [[cell biology]] and [[cybernetics]] give us more ways of describing biological processes. === Cells and macro-molecules === All life processes on Earth use the [[chemistry]] of [[carbon]] compounds. In particular, all life uses long-chain m