Evolution

Charles Darwin was active around the 1850s. This was a time that education was on the uprise, but it was not really commonplace. Many people were active in church, and that is where they learned most of their views about life and creation. The church was also very active in selecting the school's curriculum, for those that did receive some education. Without a broader understanding of the world around them, it was difficult for them to accept anything outside of their church teaching. Darwin's theories were rejected by many on the basis of religious beliefs.

Through the years, education became more prevalent, and many church goers were able to reconcile some science with some of their beliefs. The ideals of religion and the theories of evolution have both developed through the years. Some of Darwin's ideas have been rejected by evolutionists, whereas some others have been accepted by creationists. Although not all of his theories stood the test of time, he was a pioneer in his field, and he started many scientist thinking about new and different possibilities.

Evolution does not need to be explained. It is the result of things that worked at the time. By worked it is meant things that allowed the ancestors of existing beings to survive and breed and have offspring to carry on genetic traits. A common thought is that evolution has a purpose that must be explained - survival is its purpose.

According to Natural Selection organisms compete to live. Now saying that, Natural Selection encompasses a whole range of competition, from competing for food to competing for mates. It is this competition as well as adapting to environments that hones in on variation and drives the change in species.

It does not mater what anyone thinks about the theory of evolution by natural selection. The theory of evolution by natural selection is the best explanation we have for much of the observed and observable fact of evolution. The theory is internally consistent with the fact of evolution, it is supported by myriad lines of converging evidence and it generates testable predictions in the form of scientific hypothesis.

The opinion of no one is needed by the theory of evolution by natural selection and educated people have come to accept the theory.

Evolution itself is a fact, as it can be observered in both the environment and in the laboratory. A theory is a statement or series of statements which describes and explains a natural phenomenon based upon a solid foundation of evidence. The theory of evolution fits into the criteria of a theory.

Evolution is a robust theory because it is supported by a wide range of evidence from various scientific fields, including paleontology, genetics, comparative anatomy, and biogeography. The theory of evolution can also make testable predictions that have been repeatedly confirmed through observations and experiments. Additionally, the concept of natural selection provides a mechanism by which species can adapt and change over time in response to their environment.

The order of characteristics on a branching tree diagram reflects the sequence of evolutionary changes over time. Features shared by different species at the same level of the diagram represent common ancestry, while differences among groups indicate divergent evolutionary paths. By mapping traits in this way, researchers can infer the evolutionary relationships among organisms.

Fossil records, anatomical similarities, embryological development, and genetic similarities are all forms of evidence that support the theory of evolution. These pieces of evidence show the gradual changes in species over time and provide support for the idea that all organisms are related through common ancestry.

If igneous or metamorphic ( though metamorphic rock is hard to do ) radiometric dating can be used. The radioactive substance that may be in igneous rock devolves into a daughter substance and the rate of this change, coupled with other parent/daughter changes, give one a very precise age on the rock being examined.

Google radiometric dating.

A polytomy is a 3-way split in the evolutionary tree where evolutionary relationships between the two outermost branches are not yet clear. It represents an unresolved pattern of divergence in evolution.

The theory of evolution explains how life changes and diversifies. All life has a common ancestry. That is, the three clades of life - the bacteria, the eukaryotes and the archaebacteria- all have a single origin and diversified from there.

Evolution makes use of the fossil record along with examination of comparative anatomy to describe the sequence of morphological forms life has taken. Fossil-wise fish precede amphibians, and synapsid mammal-like reptiles precede true mammals. In the case of morphology, whales have tiny limb bones showing an ancestry of being four limbed and thus presumably terrestrial. Evolution uses geology, continental drift and rising and falling sea level data to explain life's past and present biogeography. Rising and falling sea levels can leave land bridges for species to cross from continent to continent, for example from North America to Russia. Evolution can be described as the 'underpinning of all biology'. In other words, what evolution 'answers' is life itself.

The base-unit of evolution is the gene. To draw evolutionary trees, modern taxonomists and phylogeny constructors use DNA and RNA data to compare species. In this way, it was discovered that shrews and bats are closely related and pangolins are closest to the Order Carnivora (cats, dogs, mongooses, bears, seals etc).

Evolution thus even unifies genetics with anatomy and all other zoological aspects one may think of. Evolution really is the answer to all life.

This concept was called saltationism. It posited that organisms could be speciated by " hopeful monster " mutations in one large jump and this concept vied for prominence among biologists, mostly geneticists, with gradualist concepts of how evolution happened and all this in the early 20th century. This concept was shown to have no merit and has been refuted since then.

Very slowly. Each generation has some differences from the preceding generations. The survivors from one generation pass their genes on to subsequent ones. A trait that increases survival rate is passed on more frequently than a trait which is detrimental to procreation.

Charles Darwin is known for the theory of evolution through natural selection. He proposed that all species of life have descended over time from common ancestors, and that the process of natural selection is the mechanism through which this evolution occurs.

I can provide a summary or explanation of the theory of evolution. Is there a specific aspect of the theory you would like me to cover?

Before Charles Darwin published his theory in the 1850s, there really was no scientific theory of evolution. Thus the theory is actually only a little over 150 years old. In the 1920s there was a revolution in our understanding of genetics, which was incorporated into the theory of evolution. That was known as "the modern synthesis." Since that time virtually every paper published on genetics, embryology, paleontology, or any other branch of biology has further strengthened the theory.

Urey and Miller provided evidence for the possibility for inorganic substances to produce organic (living) substances.

They simulated hypothetical conditions which would be present in the early Earth.

They showed how gasses of an anoxic environment, combined with static electricity could form simple organic compounds and Amino Acids.

out of 22 amino acids created, 13 where those used to make proteins in living cells.

This experiment has been replicated successfully to provide a similar outcome each time. Mckenzie was here :3

In Lamarck's explanation of evolution, the environment plays a role in shaping the traits of organisms through the principle of use and disuse. Lamarck proposed that organisms could acquire or lose certain traits based on their interactions with the environment during their lifetime, and these acquired traits could be passed on to their offspring. This theory is known as the inheritance of acquired characteristics.

The necessary conditions for evolution to occur include variation in traits within a population, inheritance of traits from parents to offspring, differential survival and reproduction based on those traits (natural selection), and long periods of time for changes to accumulate. These factors together drive the process of evolution by shaping the genetic makeup of populations over generations.

It would seem so, look at our politicians!

Seriously though, these are behaviors and not traits. You could have, say a poorly developed frontal lobe and have a predisposition to lie and manipulate in the proper environment. Check psychopathy on wiki.

Homo-Sapien, there isn't a modern form of our species.

ATP's role as a universal energy currency is essential for life processes and allows organisms to perform crucial functions such as growth and reproduction. In the context of evolution by natural selection, organisms that efficiently utilize ATP for survival and reproduction are more likely to pass on their genes to the next generation, leading to the evolution of ATP-dependent mechanisms over time.

DNA samples in the form of hair, blood, etc. will be taken from a sample population within the population. After that, it's just a matter of seeing what genotypes have change vs. phenotypes to see how the gene is actually inherited.

In a "perfect-world" scenario, this equation is referred to as Hardy-Weinberg Equilibrium and is expressed by the equation:


1=p2 + 2pq + q2

The theory of evolution is important to modern biology because it provides a framework for understanding how organisms have adapted to their environments over time. It helps explain the diversity of life on Earth, the relationships between different species, and how organisms have evolved to survive and reproduce. Additionally, the theory of evolution is supported by extensive evidence from various scientific fields, making it a foundational concept in biology.