11:37:18 AM. 11:59:59 A.M. flowering plants first humans 11:21:10 A.M. mammals, dinosaurs- 12:00:00 A.M. Phanerdzoie 12 10:40:57 A.M. Earth's crust solidifies early fishes 11 1 2:05:13 A.M. 10 archaea, bacteria 8 6 5 5:28:41 A.M. eukaryotes Archear Protero Archean and earlier

Q: When considering the entire period of time during which life on Earth has been evolving, we must…

A: To understand the change in flora and fauna that have occurred over million of years on Earth ,we…

Q: Suppose that there is a 0.3% chance a planet will develop life, a 3.3% chance that the life will…

A: The problem needs step by step calculation of the percentage. The number obtained after calculating…

Q: Once life began, what types of organisms lived on Earth forthe next two billion years? Where did…

A: Introduction There are several hypotheses presents on that how life starts on the primitive earth.…

Q: What experimentation has been done on finding the source or raw material for the first life on…

A: Harold Urey and Stanley Miller are two American scientists who attempted to create similar…

Q: Which of the following would be the most likely place that life would first form on Earth?

A: Which of the following would be the most likely place that life would first form on Earth?  Answer.…

Q: What are molecular clocks used for, what specific information is needed to utilize molecular clocks…

A: The molecular clock counts the number of random mutations that occur at a comparatively constant…

Q: List the four large time periods into which biologists divide the earth’s past

A: The geologic time scale (GTS) is a system of chronological dating that classifies geological strata…

Q: Table 1 Millions of Years Ago (Mya) Event First humans (genus Homo) The Origin of the Earth First…

A: According to astronomical research and geological evidence, scientists indicate the universe is…

Q: Explain how molecular clocks are used in the dating ofevolutionary events.

A: Evolution is the process of accumulation of the certain changed character in multiple generations of…

Q: Match the words in the left column to the appropriate blanks in the sentences on the right. chemical…

A: Emergent properties- properties exhibited by a group of individuals due to interaction among…

Q: Based on the maximum body volume of organisms preserved in the fossil record, body volume (as…

A: The question is investigating the relationship between the evolution of life forms, as proven by the…

Q: Which specific theories (provide the name of the theory and its definition) challenge Archbishop…

A: Ushers theory was a chronology which is associated with Creation of Earth. Some of the theories have…

Q: What argument convinced most scientists in the 1800s that Earth was more than 6,000 years old?…

A: Fossils are the remains of the organisms that were present on the earth in the past.

Q: During the first 600 million years of Earth history, enzymes, ATP , and other molecules could have…

A: The primitive earth was in the form of a red hot, solidified cloud containing free atoms. The…

Q: No one knows exactly when or how the first living organisms evolved, but we know that life existed…

A: Just as the universe is believed to have been formed due to the occurrence of the 'Big Bang', the…

Q: The Precambrian is characterized by several major evolutionary milestones. Which of the following is…

A: The great majority of Earth's history occurs during the Precambrian period, which began with the…

Q: Describe how the sudden appearance of oxygen in the atmosphere about 2.5 billion years ago…

A: Since life first emerged on Earth between 3.5 and 4 billion years ago, it has continued to develop.…

Q: Assume a flat Friedmann-Robertson-Walker universe. Calculate the redshift z at which the temperature…

A:

Q: How does the fact that Earth is a sphere tilted on its axis influence thedistribution of life?

A: Earth is so far the only planet that has the capability to sustain life on it. There are many…

Q: Name the study of possible life outside the earth.

A: Our universe is made up of millions of galaxies within which contain within itself billions of stars…

Q: Is your answer supported by the information from the article “Can Evolution outrace Climate Change”?…

A: Evolution is a very slow process compared to the speed of climate change. It is unlikely that…

Q: Four billion years ago, the Earth was a thin-crusted inferno. Which probable stage of physical and…

A: Solar system was originated around 4.6 billion years ago from contraction of rotating gas and dust…

Q: Name one or more common organisms that lived or lives during each of the three eras of geologic…

A: Answer: There are 3 main eras of geologic time : the Paleozoic, Mesozoic and Cenozoic era.

Q: and why? W

A: INTRODUCTION  Before long and many years, progressed space-and ground-based observatories will…

Q: What evidence would you look for on Enceladus, Europa or Mars that would tell you that life may have…

A: Europa is the smallest of four Galilean moons orbiting Jupiter. Enceladus is the sixth-largest moon…

Q: Which discovery, made under the compound microscope by the Dutch lens-grinder Anton van Leeuwenhoek,…

A: The question is asking about a specific discovery made by Anton van Leeuwenhoek using a compound…

Q: - How much time does it take for 1 half-life to occur?   -Approximately how many half-lives are…

A: Carbon is the element that is most commonly found in organic molecules. All organisms have a carbon…

Q: Why do scientists think that all forms of life on earthhave a common origin?

A: Primitive atmosphere was reducing rich in Hydrogen (H2) and free molecular oxygen (O2) was absent,…

Q: The origin of life happened under planetary conditions C very similar than those at the present…

A: There has been much discussion over the beginning of life on Earth. The evolution of life has been…

Q: Geological time covers huge spans, up to billions of years. Yet humans rarely live for more than 100…

A: Geological time scale is important to understand the history of earth that how several natural…

Q: If 1 meter equals 1 billion years and each millimeter is 1 million years, is 4.6 meters 4,600…

A: Given that we have to represent time on a linear scale with 1 metre equal to 1 billion years.…

Q: Identify critical events on a time line of life on Earth and explain their evolutionary importance.

A: The important occurrences in the development of life on Earth are depicted on a timeline in…

Q: ss the major subdivisions of Geologic Time and its contributions to civilization in 100 words each…

A: The  time interval occupied by the geologic history of Earth is known as geologic time. The geologic…

Q: Why does there appear to have been only one origin of life on earth? Why are there not multiple…

A: Evolution is the process by which different species of living organisms develop and change over…

Q: (e) If you collected a sample of water being ejected from Saturn's moon, Enceladus, you could…

A: A sample-return mission is a spacecraft mission that collects and returns samples to Earth for study…

Q: Choose one theory that you think best explains the origin of the universe.

A: Since the 1980s, RNA World has been the prevailing theory regarding the origin of life. The…

Q: Historically, how has the origin of life on earth been explained?

A: Introduction The mythological explanation for the phenomenon of life on Earth is the most frequently…

Q: Imagine an ancient sunlit estuary rich in clay deposits. Countless aggregations of organic molecules…

A: Several hypotheses have been made in relation to life's origins on Earth. In 1936, Alexander Oparin…

Q: Describe some assumptions and limitations of molecular clocks.

A: The molecular clock is a term that uses the mutation rate of biomolecules for deducing the time in…

Q: Be able to place the following events into their correct eon: Origin of the earth Origin of…

A: Eons are the longest portions of geologic time followed by the eras. Three eons are recognized: the…

Q: D Question 4 Which mass extinction led to the disappearance of the dinosaurs? O Triassic O…

A: The recurrent rise and disintegration of ice sheets and glaciers driven by the Milankovitch cycles,…

Q: What is the relationship among eons,epochs and periodsbof geologic time scale? Explain

A: The geologic time scale splits the earth's evolution into periods depending on the types of life…

Paleontology

A branch of science concerning the scientific study of life from ancient times is known as paleontology. The scientists working on paleontology are known as paleontologists. Paleontologists collect the fossils of organisms from ancient times to classify them. The paleontologists also study the environment from ancient times to study the interactions between different organisms.