Which molecule is believed to have preceded the other two during the evolution of life? RNA     Proteins     DNA

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: Which law states evolution is irreversible?

A: Evolution is a natural process that includes several changes in the characteristics of a species…

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: It can be said that modern biology is experiencing an “omics” revolution. What does this mean?…

A: Modern Biology  can be specialized and advanced topics in the fields of cellular biology and…

Q: Explain the Big Bang Theory of Evolution and compare it with the Creation Story in the Book of…

A: Cosmology is the study of the universe's origin, characteristics, operations, and evolution.…

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: 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: Drawings of the types of spicules , label the species containing each type and the type.

A: Sponges belong to the phylum Porifera and have four different classes that are Demospongiae,…

Q: Even though they have several differences, a bacterium and a human cell will both contain DNA. With…

A: Bacteria is a prokaryotic organism that do not contain any membrane bound cell organelles. They have…

Q: Outline and explain the steps in the origin of life. Explain where the original organisms must have…

A: The origin of life on Earth is a difficult scientific subject that is still mostly unanswered.…

Q: How did life first begin on Earth?

A: The Earth was created about 4.5 billion years ago. Scientists and researchers believe that the…

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: Which statement about molecular clocks is false?

A: The molecular clock is a technique that uses the rate of mutation in genetic material or their…

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: Explain how the diversity of life evolved over time.

A: The term biological diversity or biodiversity refers to the variety of living organisms and their…

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: Stanley Miller and Harold Urey provided the first experimental evidence that        . Group of…

A: Introduction :- The Miller–Urey experiment was a chemical experiment that reproduced 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: and the of life on Earth. The Theory of evolution describes both the creation and design Unity and…

A: The answer with explanation is described in step 2.

Q: During the course of evolution why DNA was choosen over RNA as genetic materials?

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: All living organisms use DNA and RNA as their genetic code. Humans and roundworms, in fact, have 25%…

A: Evolution is defined as the change in trait of an individual in a species over a period of time.

Q: Compare and contrast the evolutionary theory and creationism theory on the origin of life molecules,…

A: INTRODUCTION Creatoinism The creationism theory state that the whole universe, Earth and life in it…

Q: The video game “Spore” invites players to design creatures and guidethem through “five stages of…

A: Evolution is the process of gradual accumulation of variations in organisms.

Q: Which statement about genome evolution is false?     Mutations at the ends of introns are less…

A: Evolution is change in the heritable characteristics

Q: Why is RNA likely to have been pivotal in life’s beginnings?

A: Ribonucleic acid (RNA) is a polymeric molecule that plays various roles in biology, including gene…

Q: Through which of the following sequences did chemical evolution MOST likely take place? Protobionts,…

A: According to Oparin, coacervate serves as a bridge between loose complex organic molecules and…

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: Explain why the study of evolution is important inunderstanding life.

A: Evolution is the process of gradual changes occurring in the species over a period of time, when the…

Q: How did scientist think the first life may have evolved on earth?

A: Evolution is the change in the characteristics of a species over several generations and it relies…

Q: Why are homologous structures among organisms evidence for evolution?

A: There are pieces of evidence that prove the similarities and differences between the organisms of…

Q: Identify the stages of the origin of life hypothesis.

A: BASIC INFORMATION EVOLUTION The theory of evolution was first given by the Jean Baptist de Lamark.…

Q: What theory explains that the earth was created by a supreme being? *       Gradualism No answer…

A: Earth is the third planet starting from the sun. It is the only astronomical object known to harbour…

Q: Which of the following evidence most strongly supports the common origin of all life on Earth? *

A: Answer : Universality of the genetic code.

Q: Why is the advent of cyanobacteria considered a critical step in evolution?

A: Cyanobacteria, conjointly called division, are a phylum of prokaryotes consisting of each…

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 mutations which are of greatest importance to the process of evolution are those which are…

A: The characteristic of each species have changed gradually over time. These changes can be termed as…

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: The theory of evolution states that all living things had a single common ancestor. The translation…

A: All living beings that we can classify descended from the Last Universal Common Ancestor, according…

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…

Abiogenesis