Are We Alone Research Paper

3. Thermal springs, such as Old Faithful in Yellowstone National Park, have temperatures above 100°C. How does adaptation make it possible for living organisms to inhabit such an extreme environment?

Describe the important chemistry of early earth and how this may have given rise to life forms.

The evolution of that formation created the world we live in today. The earth has been in existence for a little over four point five billion years to be exact. The earth shares a story that we are still exploring. From its colorful coral reefs in bright and vibrant

Assumptions: “Life existed on earth for hundreds of millions of years before species evolved that

The old-Earth evolution and young-Earth creation debate has been one that has gone on for centuries. Each viewpoint seeks to give an answer to life’s most difficult questions or origins and how the Earth came to be what it resembles today. While the Young Earth viewpoint has remained constant and unchanged throughout the centuries the Old Earth view seems to be continually evolving as new discoveries tend to discredit previous assumptions. One certainty is that both viewpoints take a dogmatic stance against each other in regards to the interpretation of scientific evidence. The purpose of this paper is to compare old-Earth and

Fox-Skelly, Jasmin. “Earth - Some Lifeforms May Have Been Alive since the Dinosaur Era.” BBC News, BBC, 3 June 2016, www.bbc.com/earth/story/20160602-some-lifeforms-may-have-been-alive-since-the-dinosaur-era.

Critics may argue that evolution, being blind and unguided, cannot produce its results - life as we know it - in such a timespan. However, with self-replicating chemicals (like DNA or RNA), a reliable source of energy (the sun), and a vast surface area and lots of water, organic chemicals and other substances, and a vast amount of time (a year alone has over half a million minutes), it is not difficult to imagine how life could have proliferated, diversified and evolved over aeons, after first appearing as a self-sustaining system supporting and supported by a series of chemical processes happening in tandem and interacting with the

This chapter tells us how the earth formed and all of the different cycles it went through to get where it is today. It goes on to illustrate the beginning of life from single cell to multi-cell. How life would end and then come back with different creatures each time.

Did you know that, at one point, there was no life on Earth? There are many theories for how life began on our planet, Earth; no one knows which theory is true, and humans may never actually know for sure. There is a lot of evidence for each theory, each evidence only as legitimate as you believe it to be. These theories are greatly varied, spanning from life being created in deep sea vents in the oceans to lightning hitting the ground and sending off sparks that form new compounds.

As early as 1600AD scholars and scientists such as Isaac Newton believed that the words written in the Book of Genesis describing the creation of the Earth and mankind were in fact true. According to most biblical timelines the Earth and mankind were created around 6,000 years ago and it has only been within the past 300 years that scientists studying geological along with archaeological evidence that we now know how the Earth was created along with the evolution of humans. Today, a combination of several types of sciences tell us that over 4,000,000,000 years ago the Earth began to form and that the modern human didn't evolve until between 400,000 to 200,000 years ago.

In the beginning of the Archean Eon, the atmosphere was full of nitrogen, hydrogen, and carbon. Water vapor was also heavy in the atmosphere because the oceans were beginning to form as well. Within these oceans, the water was about between 55 and 85 degrees celsius. The crust was cooling down enough to where the continental plates and rocks were beginning to form. The rocks that were formed in that time period contain the oldest fossils known (3.5 bya) but they have either been eroded or covered by younger sediments due to the fact that they were the first formed. In the oceans, single-celled organisms were beginning to form; we are what we are because of these organisms. Near the end of this Eon, some of the organisms began to photosynthesize

According to scientists, they believe that the earth is 4.5 billion years old. They also believe that life,water,and oxygen got to Earth by meteorites. But the question is how did this happen ? Well let’s start with how they know how old the earth is. In 1897 Ernest rutherford came up with an idea that would change the world forever. The idea? Radioactive decay. Radioactive decay allows us to tell how old rocks are. So when people used this theory on rocks that were found in porpoise cove near hudson bay they were amazed at how

The work adds to the evidence that life has flourished on Earth since its infancy.

The fossil record provides a unique view into the history of life by showing the forms and features of life in the past. Fossils tell us how species have changed across long periods of the Earth’s history. For instance, in 1998, scientists found

Oparin hypothesized that the origin of life arose from Earth in its primitive state, these conditions allowed the production of inorganic molecules, which slowly transitioned into organic substances (RF). The temperature of the earth would have also been several hundred degrees high to initiate changes in hydrocarbons, correlating with Paneth’s experiment (high temperatures to facilitate the breaking of hydrocarbons into free radicals) (RF) and Russell and Hall’s model. According to Russell and Hall’s model, life emerged in hot, reduced, basic and sulfuric waters opposed with colder, more oxidized, iron-bearing water. (Russell and Hall) They proposed the origin of life would have taken place in the deep Hadean ocean floor. The difference between acidity, temperatures and redox potential of the waters would have facilitated a gradient of pH, temperature and redox potential, becoming sustainable over geological time-scales, providing the continuity for conditions that were favourable to organic chemical reactions required for the origin of life.