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Evolution

Parent Category: Biology
The scientific theory according to which populations change gradually through a process of natural selection.

Subcategories

If you're referring to the David Duchovney and Julianne Moore  movie: A firefighting cadet, two college professors, and a  geeky-but-sexy government scientist work against an alien organism  that has been rapidly evolving ever since its arrival on Earth  inside a meteor.
Horses that run faster don't get caught, so faster horses are more common now than in the early stages.Nij means that horses that run faster than predators live longer to reproduce more and raise colts that can run faster.
Evolution was not discovered. It started as an explanation  by Charles Darwin, in 1838, to explain the differences between  animals on the mainland with animals he encountered on islands that  were VERY similar with their mainland cousins but had modified  traits and characteristics to allow...
The fossil record reveals relatively gradual changes in species  over time. For example, the earliest horses had three toes and a  curved spine, and were quite small. Over millions of years the  outer toes migrated up the leg and fused with the leg bone. The  teeth changed from browsing on...
A gradient is the mixture of two or more colours in a fixed unit.  It is used in photos to bring a good look or focus in the subject  of the photo.   Two or more colours are mixed together with another familiar colour  to improve the phenomenon of collision between any two selected  colours.
I am aware of the following notions regarding the rate of  evolution:    Gradualism, that the rate of evolution is more or less  uniformly gradual.  Punctuated equilibria, that evolution is gradual, but  punctuated by rapid fluctuations in rate of progression.  Saltationism, that new...
No. Generally, people believed in blending inheritance ie something from each parent blended or mixied together in the offspring. The fact that inheritance is particulate ie particles (now called genes) are passed from parent to offspring and remain separate from each other, was not known until...
Scientists do not prove things and truth is always provisional; unless you are an ideologue. That said, evolution is a fact and the theory of evolution by natural selection explains a great deal about that fact, in a internally consistent way and supported by mountains of many lines of converging...
please research this more, but by the very nature of the words in your question, we can assume the answer. Evolution is the changing of a species to better suit its surroundings or habitat (in a rough sense). Divergence is splitting apart and convergence is coming together. So we can assume that...
There several that come to mind since this is a very large subject:Galileo, who said that the sun was the center of the solar system.Another is Steven Hawking who is still trying to find a Theory ofEverything but he did predict the existences of Black Holes andWarm Holes.
Genetic drift is an evolutionary process that makes alleles to variate, disappear or appear in offspring from parents, independently of environment. as you can say that you want to randomly distribute 10 colored balls "represent organisms in population"5 pink, 5 blue "alleles" from a pool "parents"...
Rapid environmental change results in rapid evolutionary change (as long as it doesn't occur too fast, in which case the organsisms will simply die out).Also the disappearance of the dominant organisms (eg dinosaurs) leaves an empty space in the ecosystem and the remaining organisms will evolve...
One of the most significant developments in the history of plant  life was the incorporation of chloroplasts into the basal  eukaryotic cell. This likely began as a form of endosymbiosis, and  evolved into a situation in which chloroplasts and their plant  hosts are completely co-dependent.
Lamarck proposed that traits acquired during one's lifetime could be passed to the next generation.
Proteins reflect DNA sequences, so scientists study proteins to look for genetic similarities and differences in organisms.
Scientific evidence suggests that life began on Earth approximately 3.5 billion years ago. The Earth formed 4.5 billion Years ago. The Earth was a dead planet for about 1 billion years. Some evidence would suggest that the first forms of life began more like 3.8 billion years ago, in which case...
His theory was that as an organism use/disuses a body part, it willgrow larger/smaller. This theory has been proved wrong and Darwin'stheory of descent with modification is what is accepted today.
Almost any animal you can name is evolving to some degree. However, specific examples include AIDS and influenza, which are constantly evolving at a rate we can discern, as do most bacteria and viruses.
Changes that occur as a society acquires new technology.
There is no "end game" in natural selection; this is because circumstances change over time and what might be best for one generation might not be so great for another generation. Also, natural selection is usually referred to in terms of "deep time" or hundred of thousand of years. So in comparison...
Yes, evolution has been proven true. Richard Lenski has been very precisely observing twelve cultures of E. coli bacteria since 1988 and has documented multiple occurrences of new genes appearing in the DNA of those bacteria. _____________________________________________________ Evolution is also...
Perhaps you can't, but carbon dating is not used on mineralized fossils. The igneous rock above and below the fossil strata is radiometricly dated, Carbon dating is only good on material containing carbon; material less than 40,000 years old.
No.Genetics is the study of how characteristics are inherited.Evolution is the study of how species originate and change through time.Evolution only works on inherited characteristics ie genetic varoiation, so the two subjects are intimately related, but they are not the same.
Darwin's theory has little to do with criminology. Were you thinking of the study of evolution or perhaps forensic anthropology? The last one is very important because when a body is not found a long time after that person's death, more information can be gained about the person's identity and cause...
Natural selection select depending on 2 things. 1. The ability to survive in a habitat until reprocing 2. The ability to reproduce and to get a mate
yes. if they are not needed the animals either lose them, change them, or die out.
Random events are not an important part of evolution by naturalselection, though random events cause mutation and are important ingenetic drift.
Charles Darwin basically stated the following on his theory of evolution: Inherited variation exists within the genes of every population or species (the result of random mutation and translation errors)In a particular environment, some individuals of a population or species are better suited to...
The idea of evolution was thought of long before Darwin, by a man named Count Buffon. What Charles Darwin did was to successfully come up with the mechanism of evolution, known as natural selection.
Skull can provide an amazing amount of evidence of the anatomical  changes that have occurred in hominids over time. Observations of  the size of the skull can give us clues on how much the brain has  evolved.
Due to environmental changes the organisms need to adapt according  to the changing environment, and thus it leads to survival of  fittest which is nothing but the natural selection.
Evolution, the change in allele frequency over time in a population  of organisms, is a fact. Show evidence that this does not happen. I  think you would find that very difficult to show since change in  allele frequency is so easy to observe.   Now, to show that the theory of evolution by...
If you are referring to the central notions of evolutionary theory in biology, then this "core" can be summarized in a few simple theses: 1. That life forms reproduce with variation. 2. That variations compete for resources. 3. That this competition affects the rates of spread of inherited traits...
The concept of unifomitarianism.
Better known as "adaptive radiation", it is independent evolution from a population of a species that has become geographically isolated from its parent population.
Evolution is change over time in a population of organisms.Formal and impressive to teacher definition is this;' Evolution is the change in allele frequency over time in a population of organisms. '
Here is one. Chromosome number two in humans is the result of head to head fusion of two chimpanzee chromosomes. The genes along these chromosomes are very, very similar in form and expression and the number two chromosome has telomere material in the middle and two centromeres. ( one inactivated )...
a population of salmon with different skin colors that attract mates
It changed over time from black and white to color?
  Yes and no. The Theory of Evolution and other scientific advances do disprove the biblical creation stories, but these were already disputed by Origen (On First Principles, 3.1.1) in the earliest years of Christianity:"Now what man of intelligence will believe that the first and the second and...
  Yes and no. The Theory of Evolution and other scientific advances do disprove the biblical creation stories, but these were already disputed by Origen (On First Principles, 3.1.1) in the earliest years of Christianity:"Now what man of intelligence will believe that the first and the second and...
yes because kids can do home work on the computer and do research. you can also connect and look up old friends.
HE SIX STAGES OF MARKETING EVOLUTIONMarketing as it exists today is a relatively recent phenomenon, even though its roots reach back into the nineteenth century. In the early nineteenth century a woman who wanted a new dress had two choices: to make her own or to hire someone to make one for her. If...
Darwinism has proven that life on Earth can be explained without  any need for a divine creator.    Answer:   Opinion: Darwinism is a theory. It tends to imply that no Creator  is  necessary, but it cannot prove that there was no Creator.
apes are like humans because they are intelligent creatures and they are meant to be are ancestors and humans are cool
Species evolve gradually.
The idea of a divine deity that created beings exactly how itwanted them was disproved by the theory of evolution which statedthat populations changed.
Natural selection is one of the mechanisms that shapes adaptation and enables evolution.
Of course not. Humans, like every other living thing, evolved over billions of years. The first forms of life on earth are thought to be bacteria formed in pools of water by furious lightning storms.
Lamarck believed that changes acquired during an animal's life could be inherited by their offspring. We now know that inheritance does not work in this way.For example, if you are a body builder, and develop big muscles, your children will not inherit large muscles.Inherirtance works through genes,...
fossils show the bone structure of ancient animals. you can see remarkable similarities between them and animals today. For example, the bone structure of many dinosaurs were very similar to that of birds today. For humans we found a bunch of steps on our evolution that is very good evidence of it.
[The answer I have given is rather long. The first part deals with whether 'lie' is applicable to such attempts at truth-telling as scientific theories or myths. The next bit deals with what the asker probably wants to know. The question seems to come from a desire to see whether the Theory of...
it allows to population to evolve separately like many animals inAustralia.
We know many of the steps that pre-humans made to become humans, but we still havent found the most recent common ancestor of modern apes and humans, which would have lived between 6-9 million years ago. The oldest known prehuman was the Sahelanthropus tchadensis,which lived 7 million years ago,...
It is the foundation of all modern biology.
Yes. Evolution is a continuous, gradual and ongoing process.
Lamarck wrote the three-volume Flora Française, and a few years later the Système des Animaux Sans Vertèbres. If just one of these two monumental undertakings is not enough to put this remarkable investigator into the top of the ranks of the naturalists, then no one belongs there.Are you a...
All species were descended from other species
Darwin's Theory of Descent With Modification via Natural Selection is the full name but it means "evolution via survival of the fittest."
  It denotes Darwin's specific view of how evolution works. Darwin developed the concept that evolution is brought about by the interplay of three principles: variation (present in all forms of life), heredity (the force that transmits similar organic form from one generation to another), and...
Depends on how you define rare.
  A BIG NO!   because sleeping is...   1.   1. A natural periodic state of rest for the mind and body, in which the eyes usually close and consciousness is completely or partially lost, so that there is a decrease in bodily movement and responsiveness to external stimuli....
The result is adaptation and evolution, as improved traits shouldincrease the population of the best species over time.
Fossils are like the clues the police use to solve a crime. Each one tells a story. Like clues to a crime, where the police don't have to find a print of every footstep taken by a subject or confirm every thing that he did, the clues paint a logical outline of all the events around the crime. Like...
The theory of evolution was accepted by scientists in 1859, Darwin's first book was published the same year that his theory was accepted.
Positive selection pressure is an evolutionary factor that will "find" organisms with a given set of adaptive traits "more fit" to survive. Other organisms will not be as fit for the conditions, and these organisms will suffer more predation, disease or other "culling" that will reduce their numbers...
Mutations produce trillions of variations, amounting to animals that are stronger, weaker, taller, shorter, smarter, dumber, faster, slower and everything else you can think of. Natural selection is the tendency of the harmful variations to become less common because their possessors survive and...
The major driving force behind evolution isnatural selection.metabolism.homeostasis.photosynthesis.organization.
Fossils are one of the best evidence of evolution, mainly because they are the remains of living organisms from the past, which allow us to compare them with living organisms. However, the fossil record is notoriously incomplete and it is also biased in favor of animals with hard body parts, such as...
Darwinism was suggested in the 19th century by Charles Darwin. However, it wasn't the first time that this theory was introduced. Many people in the age of Greek mythology who are called nature philosophers had come up with similar assumptions. Darwinism was, in fact, an extension to those...
Natural selection is the type of selection that can result in a  branching evolutionary tree if it goes on long enough. This is  because organisms may eventually evolve into a distinct species.
the production of a new genome through the transfer of part of the genome of one organism to another organism.
Generally, mutation and natural selection.
Recessive genes are replaced by dominant genes over time and unfavorable genes die out.
Overproduction CompetitionGenetic VariationAdaptationNatural SelectionSpeciation
At some point in time the climate changed and the trees died. They  fell into a marshy swamp area and were quickly covered up. The  watery mud that covered them was rich in calcium, and eventually,  when the water dried up, the calcium filled in where the wood once  existed and those conifer...