Explain The Four Different Eras

According to Darwin and his theory on evolution, organisms are presented with nature’s challenge of environmental change. Those that possess the characteristics of adapting to such challenges are successful in leaving their genes behind and ensuring that their lineage will continue. It is natural selection, where nature can perform tiny to mass sporadic experiments on its organisms, and the results can be interesting from extinction to significant changes within a species.

a. Microevolution: evolutionary change below the species level; change in the genetic makeup of a population from generation to generation. It is evolutionary change on its smallest scale

Neil DeGrasse Tyson once said “The theory of evolution, like the theory of gravity, is a scientific fact”. Neil DeGrasse Tyson is an acclaimed astrophysicist, cosmologist, and science communicator and has influence in the scientific world we live in today. “Biological evolution, simply put, is descent with modification” (“An Introduction to…”). “This definition encompasses small-scale evolution and large-scale evolution (the descent of different species from a common ancestor over many generations)” (“An Introduction to…”). There is now enough evidence for the theory of evolution that many consider it a fact and as such are turning away from the idea of creationism as a whole. Because of evolution you can trace just about every living thing on the Earth back to its ancestry billions of years ago. Darwin believed that all life on Earth descended from one primordial form (Naff 61). Darwin didn’t discover evolution or come up with the concept, but he was the frontrunner in research and a public endorser of the theory. The theory of evolution is correct because of homology, progressions of species changing over time, and natural selection.

into the new gene. This is like saying a bird with no wings can fly.)

Microevolution: evolutionary change within a species or small group of organisms, especially over a short period. Basically, microevolution studies small changes in alleles that occur within a population. Over time, these small

As a child, I was pressured and influenced into a Christian family, however, I believe that as a result that God is the creator of all things, He created evolution as well. I have never been educated that the Darwin’s Theory is a disgrace to a Christian’s

Macroevolution (the change of one species to another through natural selection over a long period of time) is currently taught exclusively in many public high schools as the leading theory for the variety of species on Earth, including human life. Everyone who has sat in a high school biology class has heard that humans have evolved over time from a single cell to more complex organisms such as apes to our current state of humans. There is much controversy on the validity of the macroevolution theory which has numerous evidentiary shortcomings. Unlike microevolution (successive changes within a species due to natural selection) which is easily proven through examining bacteria, macroevolution is a best-guess science. Because macroevolution

Darwinism, named after Charles Darwin, was a theory of biological evolution which stated that all species develop through natural selection, the survival of organisms more likely to last due to mutations in their DNA. Although there were no objections to Microevolution, that is, changes within a species, when the idea of Macroevolution, or the Transmutation of species, the changes between species, was published, it was attacked and kept out of scientific mainstream for some time. Although Darwinism is often used to try and disprove or nullify religion (most often Christianity), Darwin himself believed that science had nothing to do with religion, and thought that someone could believe in both God and Evolution. Christians’ biggest issue with Darwinism was that they believed it was trying to disprove Christian history and give a ‘more correct’ explanation of human origins.

Macroevolution is ¨a major evolutionary change. The term applies mainly to the evolution of whole taxonomic groups over long periods of time,¨ (Dictionary.com, 2018). Macroevolution refers to change over a long period of time. ¨Stasis is frequently associated with the theory of punctuated equilibrium, in which most evolutionary change is concentrated during the phylogenetic branching of lineages in very rapid bursts of speciation,¨ (oxfordbibliographies.com, 2018). Another phrase that is often associated with macroevolution is extinction. ¨Extinction is the state or process of a species, family, or larger group being or becoming extinct,¨ (Dictionary.com, 2018). Extinction is associated with macroevolution because they both occur over a long period of

Microevolution works on the "population" level, Macro on the "species" level. Microevolution exists, but not like creationists think. Microevolution involves changes in allele frequencies with in a species, it does not create new species. Mutation, natural selection, and others that you asked to have explained can all cause microevolution. It's plan old regular evolution, which is any change across successive generation in the heritable characteristics of biological populations. Evolutionary processes give rise to diversity at every level of biological organization, including species, individual organisms and molecules such as DNA and

Microevolution is the observable changes in species that occur gradually over time. They can be a change in color, a difference in eating preferences or even a developed resistance to pesticides, resulting in a change in genetic code from one generation to the next. It is the process of genes being changed within a population. An example of microevolution might be the Bengal cat, which is a hybrid of the domestic house cat and the Asian leopard cat. Artificial selection is a great example of small scale evolution or microevolution. This differs from macroevolution in that macroevolution is not directly observable. Macroevolution is more of a "big picture" type of concept. When you think about macroevolution, you are not thinking about

Macroevolution and microevolution use different approaches. Macroevolution looks at the classification of species and subspecies whereas micro-evolution takes on a more reductionist approach. Macro-evolution is a large change over time and focuses more on speciation resulting from separated gene pools. Its focus is between species and their common ancestors rather than within species. Microevolution is essentially part of macroevolution, just on a different time scale. Small evolutionary changes over time make up macroevolution and consists of mutations, changes in gene flow, genetic drift, and selection processes. These processes can result in speciation over a large amount of time.

The geologic history of Indiana is divided into four distinctive eras: the Precambrian, Paleozoic, Mesozoic and Cenozoic. These eras consists of different historical periods that define the evolution of rocks and life as we know it in Indiana. Beginning 650 million years ago, the Precambrian era, was very hot in temperature and molten; therefore, there was no life present. The most common rock type found during this era was igneous rocks, such as granite and marble. It was not until the Paleozoic era where life began to form throughout the marine seas. The Paleozoic was extremely complex and divided into 6 different periods: Cambrian, Ordovician, Silurian, Devonian, Carboniferous and Permian. Located at the subsurface of Indiana, Cambrian sandstones,siltstones

Then we come to “The mixing of evolution and theology sometimes results in a theory called theistic evolution. The theory posits that through the process of evolution, God gradually developed life forms until finally they became human beings.” (Zinke, 2014) Theistic evolution is the proposition that God is in charge of the biological process. That God instructs the revealing of life and matter over a time span of millions of years.

Evolution is the modification of characteristics of living organisms over generations (StrangeScience.net, 2015); it is the gradual process of development by which the present diversity of living organisms arose from the earliest forms of life, which is believed to have been ongoing for at least the past 3000 million years (Hine, 2004). Common ancestry are groups of living organisms that share the most recent common ancestor, by which scientific evidence proves that all life on Earth are descendants from the previous universal ancestor (DarwinWasRight.org, 2015). Additionally, opposing theories against Evolution, primarily the Christianity religion, explain that God is the ‘creator’ and is the source of all existence.