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Which step in the evolution of life is the most complex and probably occured last?
Answer 1
We used to think intelligence represented by brain growth and complexity. Recently it has been found, in the cephlons of early trilobites, that complex brains reached back into the Cambrian.
So, I am now at a loss to tell you what step was most complex and probably last.
Answer 2
Most evolutionary biologists will agree that the most complex evolutionary "step" was the emergence of multi-cellular lifeforms.
I say "step", because like all evolutionary developments, it wasn't exactly a leap, but more of an incremental development, taking place over many millions or even billions of generations. It took Earth life approx. 3 billion years to go from single celled replicators to true multicellular organisms, although colony organisms - temporary conglomerations of many single celled organisms - evolved after only about a billion years.
It is, according to many researchers, entirely possible that Earth-like planets could exist on which true multicellular life would never evolve.
Of course it is impossible to gauge probabilities, since we do not have a complete understanding of the processes involved just yet, and we have no basis for comparison: our sampling space consists of one example, and one example only: Earth.
What else can I help you with?
What step in the evolution of life is the most complex and occurred last?
Evolution is the change in allele frequency over time in a population of organisms.So, evolutionarily speaking your question does not make sense. Evolution is not stepwise, not directed towards a goal and complexity is, arguably, in the eye of the beholder, though organisms tend to become more complex over time there is no " last " in evolution.That said, high intelligence in advanced mammals may be said to be complex and last here.Although, alternatively, it could also be said that the evolution of intelligence is, although perhaps not a necessary consequence, still an expected consequence of the evolution of the central nervous system, itself an expected consequence of the evolution of nervous systems, in turn an expected consequence of the evolution of multicellular organisms.It has been argued by some that the emergence of multicellularity is the most complex step in the evolution of life on Earth to date, and could be argued at least as improbable as the evolution of high intelligence [Ward & Brownlee 2000, Grossberg & Strathmann 2007]. However, biological and computational experiments have, since this was first argued, shown how multicellularity might evolve rather quickly, given the proper circumstances [Travisano & Ratcliff 2012].Others have argued that it is the evolution of not intelligence but self-awareness that is so complex that it might not have been expected. They reason that it is perfectly possible for intelligence to emerge and act favourably upon its own preservation and promotion without a sense of self [Metzinger 2003, Wegner 2002]. They argue that self-aware sentience is costly in terms of computing time and the resources required to uphold it [Matsumoto & Tanaka 2004]. As the phenomenon of sentience is still poorly understood, it is difficult to determine how complex or improbable such a development is, exactly.How complex something is generally is a matter for discussion, I'd say. For instance, while we might argue that the Solar System is a complex whole of many moving bodies, it is also true that this whole follows naturally from the simple rules describing the motions and interactions of these bodies. How complex or simple does that make the Solar System?
What drives the process of evolution?
Mutation, genetic drift and gene flow can all drive evolution to a degree and the last two, drift and flow, are especially powerful in small populations. But, the driver of adaptive change in all populations of organisms is natural selection.
How does coevolution differ from evolution?
It doesn't. Co-evolution is simply a special case of evolution in which two or more species affect the direction of one another's evolution. The classic example is predator/prey interaction. All rabbits are variants and all fast rabbits vary among themselves also, with the faster ones surviving to reproduce ever faster rabbits. ( within physical limits and incrementally; think of how humans have shaved time off the mile run in the last 50 years ) This drives the evolution of faster, within limits, predators to chase these rabbits. Thus you get a arms race of coevolution in two interacting organisms.
Which happens last in the process of photosynthesis?
The last step in photosynthesis is the production of glucose or sugar molecules. This occurs in the stroma of the chloroplasts, where the energy from sunlight is used to convert carbon dioxide and water into glucose, which can then be used by the plant for energy.
How does evolution affect people?
By and large, evolution does not really affect people since it takes very many generations for even a minor evolutionary change to occur. The most obvious exception is the evolution of viruses and bacteria. Because these micro-organisms have such short lives, many generations occur in less than one year. So, micro-organisms can sometimes evolve - or mutate - into something rather different to last year. For example, we may have built up immunity to last year's influenza strain, but find we have no immunity to this year's strain. Similarly, it the avian flu was able evolve in such a way that it could survive and even proliferate in humans, jumping species from birds to humans.
What is sandile's last evolution?
sandile's last evolution is krokidile
Who is cu-bone's last evolution?
Marowak is Cubone's last evolution.
What is Ryhorn's last evolution in Pokemon?
Rhyhorn is the last evolution it goes Rhydon then Rhyhorn there isn't a 3rd evolution.
In Digimon what is the last evolution of risegreymon?
Probably SHINEGREYMON, but if you want to go further there is the Burst Mode and Ruin Mode of ShineGreymon.
What is the art period modernism and when did it occur?
it occured last year (2001)
Which period in greek history occured last?
The Hellenistic period. :3
When was the last major year?
July last yearThe last major "scattering" from Israel occured in the year 70 CE
What level does Blaziken evolves?
He doesn't evolve, he is the last evolution
Is there a third evolution for Vulpix in Pokemon Diamond?
No there is no third evolution of vulpix. Ninetails is the last evolution yet!
When has Easter and April fools day occured on the same day?
The last time was in 1956.(last update: 2017)
What is treecko's last evolution?
Sceptile.
Does Metagross evolve?
No he is the last evolution.
