The period of the history of the earth that is referred to as Chemical Evolution was essential for the appearance of life as we know it. This theory asserts that Chemical Evolution is a) confirmed by laboratory experiments, b)  occurred without the presence of any living organisms, c) created the conditions needed for primitive life, d) occurred because of the properties of elements and the compounds that they formed. e) All are assertions of this theory.

Q: Identify the true statement(s) about global temperatures across Earth's history.  (Note: may or may…

A: Given: Global temperature burden is increasing constantly around the globe. Earth's history has…

Q: ) Does the fossil record indicate that life first appeared in the water or on the land?…

A: Fossils are the preserved remains of plants and animals whose bodies were buried in sediments. like…

Q: One of the prerequisites for chemical evolution on early Earth is that there was an adequate amount…

A: Early earth is not rich with oxygen until photosynthetic bacteria arrived after that oxygen levels…

Q: In Miller’s original experiments on chemical evolution, which of the following molecules (gases) is…

A: When Earth formed 4.6 billion years ago from a hot mix of gases and minerals, it had almost no…

Q: According to the endosymbiont theory:   a)  modern plant cells are able to carry out…

A: Plant had both mitochondria and chloroplasts while humans and other heterotrophs have only…

Q: For each of the following, indicate whether it is true or false according to the current…

A: Evolution is defined as the change in the features/traits of the organisms over a number of…

Q: Give certain primitive characters with all members of kingdom Animalia (adapted from Krempels and…

A: Kingdom Animalia is a taxonomic kingdom that contains all animals. Animals are eukaryotic,…

Q: Activity # 1: What's in Your Food? Identify the possible harmful preservatives or additives used in…

A: Preservative and additives Preservative is a substance which is used to avoid the decomposition…

Q: From the different types of monomeric building blocks of life which category is not covalently…

A: A covalent bond or molecular bond is a chemical link between two atoms where electron pairs are…

Q: What are the weaknesses of the origin of life theories?

A: At the turn of this century, spontaneous generation began to make a comeback as a scientific theory…

Q: The fossils in line 4 are Delic TRT * the ones in line 1 of the diagram. 1 2

A: In this case, we may learn more about the relative ages of different types of animals, such as…

Q: Which of the following conclusions about this form of life would be most justified?

A: Any life form that exists must have some form of central dogma for functioning and survivability,…

Q: Please, need help with the explanation of the answer: During Chemical Evolution, what would one…

A: Chemical evolution describes changes in entities that do not necessarily need to be able to…

Q: Ancient mammals became abundant during this period: a) Jurassic b) Triassic c) Carboniferous d)…

A: Mammals can be defined as the group of vertebrate animals  which constitutes  the class  of Mammalia…

Q: Which of the following statements best explains the importance of sister taxa for understanding the…

A: When two organisms originating from a common ancestor and placed close to each other they form a…

Q: A skull of Homo Neanderthalensisis tested using carbon14. Palaeontologists are wondering about…

A: Neanderthals likewise Neanderthals, Homo neanderthalensis or Homo sapiens neanderthalensis are a…

Q: Direct evidence of life on early Earth comes from fossils of microorganisms that lived 3.5 billion…

A: The earliest life structures we are aware of were minuscule organic entities (microorganisms) that…

Q: 1a) How do the events surrounding the Peppered Moth during the industrial era in Great Britain…

A: As per our guidelines, we are supposed to answer only one question. Kindly repost the other question…

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: Without an oxygen-free atmosphere, the organic compounds that started the story of life never would…

A: The Earth has been significantly altered by life. Organisms have influenced the composition of the…

Q: The earliest ancestor of land plants resembled: A)Grasses B)Red algae C)Green algae D)Ferns E)Pine…

A: Land plants, also known as embryophytes, are a diverse group of multicellular organisms that inhabit…

Q: 9) Rocks containing fossil evidence have been found in Canada suggesting how life on Earth evolved.…

A: They are the remains of an organism that are preserved. They can be found as traces of ancient…

Q: Which of the following helped to lay the groundwork for understanding the record of historical…

A: The Earth was created by deposition from the solar nebula approximately 4.54 billion years ago,…

Q: DNA, RNA and Polypeptides

A: The specific carrier of the genetic information in all organisms is the nucleic acid known as DNA,…

Q: The first single-celled organisms on Earth probably evolved (a) 3,700 years ago (b) 3.7 million years…

A: Evolution is a process of slow and gradual change over a period of time. There are many pieces of…

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: 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: All evolutionary changes that allow a species to change in response to the environment are…

A: Evolution is the process of gradual changes in organisms to form more and more complex forms over a…

Q: With regard to the origin of life, why are biologistsinterested in the prebiotic synthesis of…

A: Introduction The Oparin-Haldane model suggested that under the highly reducing atmosphere of…

Q: Many pathogenic bacteria have become resistent to antibiotics. a) Explain how Lamarck would…

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Q: The respiratory system, which includes the lungs, is responsible for taking in oxygen and expelling…

A: All living things have certain traits in common: On the basis of these traits, we differentiate…

Q: What is the most accepted hypothesis on the origin of life on earth? How does it compare to the…

A: Introduction The heterotrophic hypothesis on the origin of life is the most compelling and widely…

Q: 1. Adaptive radiation of the mammals post the 65 million years ago extinction event was a product of…

A: Adaptive radiation has played a big role in the evolution of our biological diversity but the extent…

Q: Miller and Urey

A: In 1952, a University of Chicago chemist named Stanley miller and Harold Urey conducted a famous…

Q: Why are scientists interested in the primordial synthesis of organic molecules when it comes to the…

A: Genesis of life is the concept that tries to provide an answer to how life started, especially on…

Q: The neutral theory of molecular evolution is now accepted as part of the theory of evolution by…

A: According to the neutral theory of molecular evolution, the changes that lead to evolution happens…

Q: How does finding the same fossils of a land animal on two different continents support the…

A: Continental drift Alfred Wegener developed the hypothesis of the continental drift in the early 20th…

Q: 8) Each of the observations provides evidence that supports the idea of common ancestry and…

A: In evolution different characteristics are compare for identifying the relationship between…

Q: 1) How have scientists created the "tree of life"? Do you think that variations exist between these…

A: As per the guidelines, first question is answered. In evolutionary exhibits the evolutionary trees…

Q: Why was the development of enzymes fundamental to the evolution of life?

A: Answers:  ENZYMES = These are the chemical molecules produced by many microorganisms, When they…

Q: Scientific literacy means that you (a) are able to easily read and understand a scientific journal…

A: Scientific literacy, also known as science literacy, refers to the ability to comprehend science,…

Q: 18-Consider the reaction: A + B → C + D+ Energy a) the reaction is endergonic b) an enzyme could…

A: Introduction:- Reaction is a process in which substrates are converted into the final product by…

Q: What two pieces of evidence support the claim that all life on Earth descended from a common…

A: Evolution is the process by which the heritable traits of different organisms evolve over subsequent…

Abiogenesis