what is evolution ?

Question

what do u mean by heriditery and evolution? what was Darwins theory?

Answer 1

One of the most respected evolutionary biologists has defined biological evolution as follows:


"In the broadest sense, evolution is merely change, and so is all-pervasive; galaxies, languages, and political systems all evolve. Biological evolution ... is change in the properties of populations of organisms that transcend the lifetime of a single individual. The ontogeny of an individual is not considered evolution; individual organisms do not evolve. The changes in populations that are considered evolutionary are those that are inheritable via the genetic material from one generation to the next. Biological evolution may be slight or substantial; it embraces everything from slight changes in the proportion of different alleles within a population (such as those determining blood types) to the successive alterations that led from the earliest protoorganism to snails, bees, giraffes, and dandelions."
- Douglas J. Futuyma in Evolutionary Biology, Sinauer Associates 1986


"In fact, evolution can be precisely defined as any change in the frequency of alleles within a gene pool from one generation to the next."
- Helena Curtis and N. Sue Barnes, Biology, 5th ed. 1989 Worth Publishers, p.974


Darwinian Theory is actually multifaceted, and is really a misnomer. Origin of Species actually was a multi-theory.
1) Evolution as such. This is the theory that the world is not constant or recently created nor perpetually cycling, but rather is steadily changing, and that organisms are transformed in time.
2) Common descent. This is the theory that every group of organisms descended from a common ancestor, and that all groups of organisms, including animals, plants, and microorganisms, ultimately go back to a single origin of life on earth.
3) Multiplication of species. This theory explains the origin of the enormous organic diversity. It postulates that species multiply, either by splitting into daughter species or by "budding", that is, by the establishment of geographically isloated founder populations that evolve into new species.
4) Gradualism. According to this theory, evolutionary change takes place through the gradual change of populations and not by the sudden (saltational) production of new individuals that represent a new type.
5) Natural selection. According to this theory, evolutionary change comes about throught the abundant production of genetic variation in every generation. The relatively few individuals who survive, owing to a particularly well-adapted combination of inheritable characters, give rise to the next generation.

Darwin tried to explain the process of evolution, the mechanism, that is. However, the technologies we have now are much more advanced than he had available. If there is any question about the truth of evolution among true scientists, it is concerning the mechanism of how evolution occurs, not the fact that it did.

Answer 2

Heredity is the transfer of characteristics from parent to offspring, either through their genes or through the social institution called inheritance.

Evolution is the change in the inherited characteristics, or traits, of a population of organisms.

Darwin's Theory of Evolution is the widely held notion that all life is related and has descended from a common ancestor: the birds and the bananas, the fishes and the flowers -- all related. Darwin's general theory presumes the development of life from non-life and stresses a purely naturalistic (undirected) "descent with modification". That is, complex creatures evolve from more simplistic ancestors naturally over time. In a nutshell, as random genetic mutations occur within an organism's genetic code, the beneficial mutations are preserved because they aid survival -- a process known as "natural selection." These beneficial mutations are passed on to the next generation. Over time, beneficial mutations accumulate and the result is an entirely different organism (not just a variation of the original, but an entirely different creature).

Answer 3

Darwins theory was that certain abilities made a given species or group within a species more successful in creating the next generation of that species. More of the next generation would therefore inherit (heredity) that ability and so on until that ability became the norm within the species. In some cases the change was so drastic that the new group was considered a new species. In actuality evolution is extraordinarily complex and there are really no simple rules to describe all of the mechanisms that go into to "evolving" a new species or even a change within a species.

Answer 4

I have taught a course in evolution and used the
textbook by Douglas Futuyma. Despite the
quotation from him, however, evolution is NOT
merely change. Evolution in the biological sense
is a particular KIND of change.

For evolution to occur there must be genetic
variation in a population of organisms (which
there obviously is), this variation must be
inherited in some form (which, again, much of it obviously is), and there must be something in the
environment which affects the population in such
a way that some individuals are more likely to
produce surviving offspring than others. The
most effective thing, so far as we can tell, is
what is called natural selection. Other things
can also affect the outcome, but the others all
appear to be minor, as compared with natural
selection.

Darwin's Origin of Species included several
theories, of which natural selection was only
one.

Answer 5

a million) According to evolutionists, Humans advanced from apes? Humans are apes through definition. Linnaeus categorised us as such and he used to be a creationist. two) There are many tested details in technological know-how, however evolution is only a conception. False because of a false impression of the phrase conception. A reality, in technological know-how, is a discrete factor of understanding. Theories attach details and give an explanation for them. There isn't any better type than conception. three) A transitional variety is a fossil of an animal that's facet one species and facet yet another. False. All organisms are transitional. four) The age of the earth is located through scientists completely via the radioactive courting of fossils ? The age of the Earth used to be located through courting a meteor at the assumption that the Solar System used to be all of the equal age. All different calculations have compatibility the age observed. five) The clinical process starts with a prediction after which appears for proof to aid that prediction? It starts with statement. Then a speculation is shaped from that statement. After the speculation is shaped, scientists appear for proof to aid or falsify the speculation. 6) The conception of evolution entails the Big Bang? False. 7) To feel in evolution is to feel that lifestyles and subject got here from not anything? False.

Answer 6

evolution is becoming human from apes and heredity is despite evolution still acting like an ape.

Actually, evolution is adoption and rejection of traits for survival for the generations to come and

heredity is passing of same characteristics to the next generations

In both the cases a willing process of selection is there understood "my dear descended from apes (that is what the first reaction of the angry crowd was to Charles Darwin)".

Answer 7

Darwin's stated that the human being's have evolved from apes and that the end of our backbone is where the tail used to start from, hence Darwin's theory of Evolution.

Answer 8

In biology, evolution is the change in the inherited characteristics, or traits, of a population of organisms. Heritable traits are encoded in the genetic material of an organism (usually DNA). Evolution results from changes in this genetic material (mutation) and the subsequent spread of these changes in the population.

Natural selection, one of the processes that drive evolution, is a result of the advantage conferred on organisms by beneficial, heritable traits. If these traits increase the evolutionary fitness of an organism, they will be more likely to survive and reproduce than other organisms in the population. In doing so, they pass more copies of those (heritable) traits on to the next generation, causing advantageous traits to become more common in each generation; the corresponding decrease in fitness for deleterious traits results in their become rarer. In time, this results in adaptation: the gradual accumulation of new beneficial traits and the preservation of existing ones results in a population of organisms becoming better suited to its environment and ecological niche.

Though natural selection is decidedly non-random in its manner of action, other more capricious forces have a strong hand in the process of evolution. Genetic drift results in heritable traits becoming more or less common simply due to random chance. This aimless process may overwhelm the effects of natural selection in certain situations (especially in small populations).

Differences in environment, and the element of chance in what mutations happen to arise and which ones survive, can cause different populations (or parts of populations) to develop in divergent directions. Enough divergence between two populations can eventually cause speciation, the emergence of two distinct types of organisms from a common origin. Evidence such as the universal genetic code, and the fact that some genes are common to all life, indicates that all known organisms are ultimately descended from a single common ancestor.

While the idea of evolution (as opposed to the fixity of species) is ancient, the modern concept of evolution by natural selection was first set out by Alfred Wallace and Charles Darwin in a joint paper to the Linnean Society, followed by the publication of Darwin's 1859 book, On the Origin of Species. In the 1930s, the modern evolutionary synthesis combined Darwin's natural selection with Gregor Mendel's genetics. As more and more evidence was collected and understanding of the processes of evolution improved, evolution became the central organising principle of biology.

Answer 9

The evidence for evolution is and has been interpreted from a Philosophical and ideological Bias, The answers given by adherents to Evolution here in R&S is proof of the bias and agenda, Atheism has to have an alternate explanation—other than a Creator—for how the universe and life came into existence.
Darwin once identified himself as a Christian but as a result of some tragedies that took place in his life, he later renounced the Christian faith and the existence of God. Evolution was invented by an atheist.
What is sad is that Christians are falling into this Trap and trying to fit evolution into the Bible (Theistic Evolution) thinking they can make it fit.
Lee Stroble in his video listed below “ The Case for the Creator” stated (5 min. 28 sec into the video) The Case for a Creator
http://www.youtube.com/watch?v=ajqH4y8G0MI
http://www.godtube.com/watch/?v=FJ0J0JNU

That “There is no way you can Harmonize Neo Darwinism with Christianity, I could never understand Christians who would say “ Well I believe in God yet I believe in Evolution as well” You see Darwin’s idea about the development of life led to his theory that modern science now generally defines as an undirected process completely devoid of any purpose or plan,”. Now how could God direct an undirected process? How could God have purpose in a plan behind a system that has no plan and no purpose? It just does not make sense.
It didn’t make sense to me in 1966 and it doesn’t make sense to me now.
The Apostle Paul wrote to His Son Timothy stating that “ in 2 Timothy 4:3-4 “For the time will come when they will not endure sound doctrine, but according to their own desires, [because] they have itching ears, they will heap up for themselves teachers; and they will turn [their] ears away from the truth, and be turned aside to fables.”

Those Christians who believe in evolution have no idea how that effects their theology.
What is theistic evolution?
http://www.gotquestions.org/theistic-evolution.html


Eternity is a Long Time to be wrong about this

What Hath Darwin Wrought?
http://www.whathathdarwinwrought.com/

Darwin's Deadly Legacy
http://www.youtube.com/watch?v=-qHb3uq1O0Q
Darwin & Eugenics....
http://www.youtube.com/watch?v=vuTPHvedOOU&feature=related

Creation In The 21st Century - Planet Earth Is Special 1 of 3
http://www.youtube.com/watch?v=xyUjhgsEJFw

Creation in the 21st Century - The Evidence Disputes Darwin 1 of 3
http://www.youtube.com/watch?v=XbCbfzmhAN8

Some modern scientists who have accepted the biblical account of Creation
http://www.answersingenesis.org/home/area/bios/

More than 600 Scientist with PHD’s who have Signed A SCIENTIFIC DISSENT FROM DARWINISM
http://www.discovery.org/scripts/viewDB/filesDB-download.php?id=660

Answer 10

a time for change!! darwin theory was natural selection so you select!!