When sitting and watching a fire, the is simple toget the idea the it is alive. That movesdynamically, dancing and also sending sparks. It isable come spread throughout a surface, and move aboutfrom combustible thing to flammability object. Itconsumes such materials as wood, converting theminto ash and other byproducts. It requirements oxygen,as despite it were breathing. However, fire ismost definitely not alive.In fact, nobody ofthese criteria prove the something isalive!Oftentimes we think that all liferequires oxygen. However, there are many bacteria(called anaerobic bacteria) which execute not needoxygen in ~ all! lock live down in the soil, underoceans and also lakes, and in other areas. To countless ofthem, oxygen is a poison! however they room definitelyalive. So clearly whether or no something needsoxygen go not present if that isalive.Consciousness together we think of it isprobably not a great determinant for life either. The is extremely unlikely that bacteria, fungi,plants, and also other organisms think, due to the fact that they lacka mind or nerves. Yet they are certainly alive. As such whether or not something thinksdoes not show that if is alive. This is the samefor movement, due to the fact that not every living points move-- in fact, countless living things relocate a lot much less thanfire! and many non-living things move, such asthe wind or a car.In order because that somethingto be taken into consideration alive the must have severalcharacteristics and abilities, such as metabolism,growth, reproduction, and an answer to stimuli oradaptation to the environment. Just how does firestack as much as these requirements?Firecertainly seems able come grow. A tiny campfirecan quickly grow to the level that a woodland fire, soyes, it appears to satisfy this criterion.Canfire reproduce? Again, it appears able to! Asingle spark deserve to blow to a various location andstart a new fire. That could be consideredreproduction!
Fire is no alive, although it definitely seems tohave a mind of that own! The process of oxidationis once substances react with the oxygen in theair to make oxides (like rust on iron, is ironoxide, and also when her mom"s silver- tarnishes, thatis silver- oxide). When things oxidize, theyrelease heat. Fire is just really rapid oxidation.Heat rises, and makes currents of waiting thatcirculate as the hot air rises - the is whyflames appear to dance and move around. Fire needsoxygen come burn, and also it needs fuel; for somethingto "burst into flames" it demands to be at a highenough temperature. Without any kind of one of theseingredients the fire won"t burn. A fire onearth is in a gravitational field - the is why itis thicker at the bottom. But a flame in the spaceshuttle, in what they contact "microgravity"(*)environment is actually round! Pretty exceptional -imagine a "flame ball"! (* in reality there isplenty of gravity up there - the is why theshuttle continues to be in orbit - yet it is in a state of"free fall" around the earth so friend _feel_weightless.)
Biologists have combated a little over the basicdefinition the life, yet all biologists would agreethat fire is no alive. Remember, not all livingthings feeding on oxygen (plants feeding on carbondioxide), so that"s not a good meaning forlife. No all living things relocate (again, tree donot yes, really move), for this reason that"s no a an extremely gooddefinition that life. No all living things "think",either (plants perform not think).What her questionreally comes down to is exactly how to define life. I"vetried come come up with some an easy definitions oflife. -- because that me, life deserve to be defined by it"smost simple building block -- a cell. If somethingdoes no contain at least one cell, it is notalive. Fire does not contain cells. -- Livingthings contain DNA and/or RNA, proteins whichcontain the simple information cells usage toreproduce themselves. Fire does no contain DNA orRNA. -- life things room made of matter,and you deserve to weigh them. It might be tough to measurethe load of one bacteria, however you get the point.You cannot sweet fire, since it is simplyenergy. It has no mass. Fire is energy given offwhen matter burns. You can see it, but what yousee is merely light, so friend cannot host it. --Living points grow, and also in growing they do newmatter, but it"s no just any type of old matter. Lifeis organization. Every living things make the samebasic things: proteins, fats and carbohydrates,for example. Fire cannot make proteins indigenous theoxygen and also hydrogen and carbon it "feeds on", justdestroy proteins. This is a significant difference.-- living things need nutrients andwater, and have complicated ways that finding and also usingthe things in your external atmosphere that theyneed. Living things additionally have methods of sensing andresponding to risk or attack.
That"s a great question since fire does havesome things in common with life things. That needsfuel and also oxygen. It can grow. That "reproduces" tomake more fires. But fire is also differentfrom life things. Because that one thing, the is no madeof cells. Every living things space made of cells.Also, once fire "reproduces," no informationis passed on. In life things, DNA carriesinformation from one generation come another. Allliving points are adjusted to where and also how theylive through evolution, which alters DNA end time.Fire is usually the very same every time. It may bebigger or smaller, hotter or less hot, or movingdifferently, however that"s all because of theconditions best now, not due to the fact that of informationit inherited in DNA.Another difference is thatall living points come from other living things.One-celled living things divide to make 2 newone-celled things. Eggs, spores, seeds, babies,and growing brand-new individuals from parts of their"parents" space all means to reproduce brand-new life fromlive things. Fire have the right to come from a match, rubbingsticks together, a spark, or various other things the arenot fire.So fire is a good example ofsomething that has actually some attributes of life.Thinking about ideas like this helps united state to reallyfigure the end what we median by life.If friend couldmake robots that made various other robots, would certainly they bealive?
According to Hickman, Roberts, and also Larson (1997),any living organism will accomplish the following sevenbasic nature of life:1) Chemicaluniqueness. Living systems demonstrate a uniqueand facility molecular organization. 2)Complexity and also hierarchical organization. Livingsystems demonstrate a unique and also complexhierarchical organization. 3) Reproduction.Living systems have the right to reproduce themselves. 4)Possession of a hereditary program. A genetic programprovides fidelity the inheritance. 5)Metabolism. Living organisms keep themselvesby obtaining nutrients from your environments.6) Development. Every organisms pass v acharacteristic life cycle. 7) Environmentalreaction. All animals interact v theirenvironment.Fire is not alive. It does notcontain gene inheritable information, andarguably walk not have a complicated organization.
While it is true that fire feeds on oxygen andmoves that is lacking a very important attribute to beconsidered alive.
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In order to be thought about aliveyou have to have the ability to reproduce one of two people sexuallyor asexually at some allude in her life. Allliving things likewise contain a genome (DNA), that istransferred to it"s progeny (offspring)