Evolution

Darwin's theory of evolution is widely supported and sustained by the scientific community, including biologists, geneticists, paleontologists, and other researchers around the world who continue to study, expand upon, and confirm his ideas through ongoing research and discoveries. Evolutionary theory is recognized as a foundational concept in biology and is integrated into various fields of science including genetics, ecology, and anthropology.

Evolution is a scientific theory that is supported by overwhelming evidence from various fields such as paleontology, genetics, and microbiology. The term "theory" in science does not mean a guess, but rather a well-substantiated explanation based on evidence. While evolution is widely accepted among scientists, it is not considered a fact in the same way as established scientific laws because theories are subject to modification based on new evidence.

The theory of evolution states that all species of organisms have descended from a common ancestor through a process of gradual change over long periods of time, driven by natural selection acting on heritable variations within populations. It explains the diversity of life on Earth and how species adapt to their environments.

While some critics challenge specific aspects of Darwin's theory of evolution, such as the mechanisms of random mutation and natural selection, the overwhelming evidence from fields like paleontology, comparative anatomy, and genetics supports the core principles of evolutionary theory. These fields provide a robust framework that explains the diversity of life on Earth and the patterns of similarities and differences among species.

The study of branching patterns of evolution is called phylogenetics. Phylogenetic analysis uses genetic and morphological data to construct evolutionary trees that illustrate the evolutionary relationships between different species or groups of organisms. These trees help researchers understand the evolutionary history and diversification of life on Earth.

For evolution to occur, there must be genetic variation within a population, inheritability of these genetic traits from one generation to the next, differential survival and reproduction based on these traits (natural selection), and long periods of time for changes to accumulate across generations.

Evolution and speciation. ( microevolution is imprecise )

Alleles can change over time in a population of organisms without any great change in the phenotype or behavior of a species. Then, to keep it simple, a geographic barrier arises between portions of the population and they can no longer interbreed, Mutations happen in the separate populations and evolution can take two different paths now with natural selection driving the winnowing of variations so that adaptive change is happening in the immediate environment of the sundered populations. Given enough time the two populations gene pools will have such a variance in the alleles contained in those two gene pools that two different species will arise.

The mechanism of heredity. By statistical means Mendel showed that inheritance was particulate and that " factors ", his name for genes, were contriputed separately in differing forms of the same gene. Alleles. He also came up with laws. The law of segregation, dominance and assortment.

" Genesis theory!?!? " If you mean the Judeo-Christian creation myth then you are in the wrong section. This is a Western creation myth that has no basis in science and is certainly not a theory.

Branching evolution refers to the concept that species diverge from a common ancestor and gradually evolve into distinct lineages over time. This results in a tree-like pattern of relationships among different species, where each branch represents a unique evolutionary path. Branching evolution is evidence of the diversity of life on Earth and the process of natural selection driving species adaptation to their environments.

Humans became the most dominant species on Earth due to key evolutionary advantages such as intelligence, complex communication, and the ability to adapt to different environments. These traits enabled humans to develop advanced tools, social structures, and strategies for survival, ultimately leading to their dominance over other species.

Malthus proposed the while grown foodstuffs increased arithmetically population grew geometrically. Darwin analogized this concept to the natural world of organisms. Many more organisms are born than there is resources to support them. So, Darwin figured there were variations of organisms that would survive and reproduce while leaving their survival traits with their progeny.

Evolution is important in explaining diversity in life because it provides a scientific framework for understanding how different species have adapted to their environments over time through natural selection and genetic variation. It helps us make sense of the complex relationships between different organisms and how they have changed and diversified through generations. By studying evolution, we can gain insight into the origins of species and how they have evolved to fit their specific ecological niches.

Allele frequencies are used to study genetic variation within a population. They can provide information about the genetic diversity, evolution, and potential for certain traits or diseases in a population. By tracking changes in allele frequencies over time, researchers can gain insights into how populations evolve and adapt to their environments.

No. The individual is selected and genes do not care for species, only for the reproductive success of the individual they reside in. Think statistically, your actions are only a small part of all the aggregate actions of the species.

ANSWER:

Another way to look at it involves the Butterfly Effect. Edward Lorenz explained that something as small as a butterfly flapping its wings in one place could create a storm much later, and thousands of miles away. However, your actions do not effect the evolution of humanity in any predictable way.

However, keep in mind that the actions of individual people today do effect the survival or extinction of many other species. And if humans effect whether another species, or whether individuals of another species survive or die, we are effecting evolution.

Take, for example, the fact that in the past, people hunted blue whales, and the largest ones were taken most often. This eliminated the large ones, naturally selecting smaller blue whales, so that today, blue whales are not as large, on average, as they were only a few hundred years ago. Similar things are happening today, creating antibiotic proof bacteria, herbicide resistant weeds, and pesticide resistant insects.

As real as any scientific theory. Cell theory, the theory of gravity, germ theory of disease, quantum theory and the theory of relativity are all theories that are well supported by the evidence and explain the phenomenon we observe in nature. The theory of evolution by natural selection is no longer " Darwin's theory ", but has been strengthened and added to in the 151 tears since Darwin and Wallace first proposed evolutionary theory.

Evolution, the change in allele frequency over time in a population of organisms, is fact. The theory of evolution by natural selection explains much about the fact of evolution.

That is what make a theory, explanation. Facts are useful, but uninteresting. Theories explain facts by gathering many convergent pieces of evidence and putting it into a logical and consistent whole.

Evolution produces new and complex features through a combination of random mutations and natural selection. Mutations in DNA create genetic variation, which can lead to the development of new traits. Natural selection then acts on these traits, favoring those that increase an organism's fitness in its environment, allowing them to be passed on to future generations and ultimately leading to the evolution of new and complex features.

Organisms can develop physical changes such as camouflage, structural adaptations, or changes in body size to better suit their environment. These changes help organisms blend in with their surroundings, access food sources more effectively, or regulate their body temperature in extreme conditions. Overall, these adaptations improve an organism's chances of survival in a specific environment.

Evolution is when a species develops and diversifies at the genetic level to better fit it's environment .

Evolution is natural , and occurs so species can survive .

Scientifically speaking , when the earth was created , there were only single-cell bacteria around . If they hadn't evolved , they probably wouldn't have survived the ice age , etc .

Darwin's theory of evolution states that species change over time through a process called natural selection. This process involves individuals with traits better suited to their environment being more likely to survive and reproduce, passing those favorable traits on to the next generation. Over many generations, this can lead to the development of new species.

DNA can be used to match two species and determine if they are related or share a common ancestor. In addition, the existence of DNA itself is proof for evolution on a large scale - virtually all organisms share the same nucleic acid as the genetic code, leading scientists to the conclusion that all species shared a common ancestor at one time.

Evolution is a process of continuous divergence. A lineage splits, producing two or more diverging descendant lineages. Each of these lineages may then produce more diverging lineages, like branches stemming from a trunk. As such, a tree structure nicely represents the plot of diverging lineages and their ancestors. Hence, the so-called "tree of life".

Alexander Ivanovich Oparin was a Soviet biochemist who, in 1924, put forward a coherent theory for the origin of life through gradually increasing sophistication of biochemical change in his book The Origin of Life.