The following is a synthesis sequence or progression that is a hypothesis for Chemical evolution: elements, ionic and covalent bonding to form simple molecules, these simple molecules form simple organic monomers, the monomers undergo dehydration synthesis to form bio polymers, formation of micelles (Pre cells). This concept a) can only be observed in living cells, b) is a theory that proves that life could not evolve on other planets. c) is a hypothetical model that can be confirmed in the laboratory, d) is a hypothesis that has no supporting evidence from rocks that predate the presence of  cells in the fossil record. e) These are all true.

Q: 4. Fill in the table: Step of how life started 1- evolution of monomers 2- evolution of polymers…

A: The flow of genetic information in a biological system is explained by central dogma and it involves…

Q: RNA is often characterized as being the first“biologically active” molecule. What two properties or…

A: The RNA world is a hypothetical stage in the evolutionary history of life on earth, in which self…

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: 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: 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: Researchers have reported advances in their attempts to synthesize life from scratch in a…

A: There are multiple questions that can be answered by this experiment. But the principal question…

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: DNA, RNA and Polypeptides

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

Q: How is origin of life attributed to LIGHT and WATER? Give a detailed explanation.

A: The origin of life is still a mystery and not proved. There are many theories that are suggested by…

Q: Which of the following is an accurate point that supports the idea that the earliest protocells…

A: DNA and RNA are the genetic material present in the cell.

Q: Indicate which of the following statements concerning biostratigraphy is true. a) fossils can only…

A: C. fossil can only be dated in ancient oceanic sediment layers is correct.

Q: Miller and Urey

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

Q: Which of the following is the last step in the Oparin-Haldane Model for the beginning of life?   a.…

A: oparin and haldae suggested the  origin of life on earth , via the abiotic evolution .

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: Which of the following statments are correct about protein evolution (select all that apply)?   A.…

A: Protein evolution refers to the evolution of protein structure, function, and composition over time.…

Q: All the following statements support the theory that similar organisms have a common ancestor except…

A: Introduction The change in the heritable characteristics in a population over a period is termed…

Q: Describe how the structure of a protein (such as hemoglobin) is related to DNA. In other words, what…

A: The function of a protein is determined by its shape. The shape of a protein is determined by its…

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: ) Poly A headdress and tail b) Ligase and helicase c) Amino acid and nitrogenous base

A: In eukaryotes, poly(A) tails usually act as stabilizers of intact mRNAs, whereas in E. coli they…

Q: Below are some key events that took place during the long history of life on Earth. Arrange them in…

A: Constant change has characterized earth since its beginning some 4.5 billion years ago. life…

Q: In the transition of Chemical Evolution to prokaryotic cells, phospholipids had a critical role. The…

A: Cell membranes serve to organize and protect cells. Every cell has an exterior plasma membrane that…

Q: 1) Select the concept below that best demonstrates compartmentalization of function in living…

A: Compartmentalization in living beings refers to the presence of discrete organelles in the cells…

Q: List in order of appearance the four stages of the origin of life and explain what was necessary to…

A: Evolution is the gradual changes occur in in living organisms over a long duration it is a very slow…

Q: Critics of evolution often cite the fact that several hypotheses are being tested to help explain…

A: Introduction  Evolution is the process of a species' features changing over numerous generations…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: