In their laboratory experiments of simulations of early Earth, Miller and Urey observed the abiotic synthesis of abundant amounts of      DNA     amino acids     liposomes     genetic systems   Which of the following was probably NOT present in the primitive Earth s atmosphere (when life first appeared)?     O2     NH3     H2O     CH4     CO2

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: 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: 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 is not a reason why RNA is expected as one of the first primary molecules in…

A:

Q: Understand the importance of the Miller-Urey experiments that recreated the conditions present in…

A: Stanley Miller and Harold Urey demonstrated in their experiment that UV radiations or electric…

Q: Match the primary sequence to its characteristics/function/fate 1. mostly hydrophobic, interacts…

A: Cell signaling is an essential component in the cell biology. The signal transduction is carried out…

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: The unity of life BACTERIA Bacteria Archaea Eukarya ARCHAEA EUKARYA: "Protists" Membrane bound cell…

A: Aristotle was the earliest to attempt a more scientific basis for classification. He uses simple…

Q: Given the following approximation of our current best understanding of the tree of life, which…

A: Tree of life is used to describe the relationship between different organisms in earth-

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: 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: 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: You are digging for fossils and found an ancient one with well preserved cellular contents. After…

A: The objective of the question is to identify the group of organisms to which a fossil belongs based…

Q: Which of the following statements is TRUE? Robert Hooke proved that cells come from pre-existing…

A: which of the following statement is true: Robert Hooke proved that cells come from a pre-existing…

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: 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: 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 least reasonable regarding the Urey-Miller experiment? Group of answer…

A: Harold C. Urey and Stanley L. Muller conducted an experiment to explore the origin of life on earth.…

Q: Which of these provides evidence of the common ancestry of all life? near universality of the…

A: Evidence of organic evolution is provided by -  1.Paleontogical evidences  2.Evidences from anatomy…

Q: dution to genetics made by researching the model organism Arabidopsis thaliana is en understanding…

A: Arabidopsis thaliana is used as a model organism because its usefulness in genomic studies.

Q: The term Anthropocene implies that

A: Epoch, in general, termed as a very important period of time in history

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: 3 The experiment of Miller and Urey demonstrated that: That multicellular organisms form easily in…

A: Introduction The Miller-Urey experiment stimulated conditions thought at the time to present on…

Q: Which of the following is thought to be a necessary precursor for Eukaryotes to evolve?…

A: Introduction :-   Eukaryotes are organisms whose cells have membrane-bound organelles in addition to…

Q: Beyond the usual carbon based life, and proposed life based on silicon, what other compound is…

A: Carbon based Life   The life on earth is carbon based this is because carbon have unusual tendancy…

Abiogenesis