One of the simplest definitions of a life-form is anything with the capacity to reproduce and regulate itself. Before life began, the complex organic, or hydrocarbon-bearing, molecules that makeup RNA and DNA, the building blocks of life, must have formed. No one knows exactly how life is formed from these molecules, but many ideas have been put forward. As you enter this area, go toward the large video screen on the right and explore the “Life at the hydrothermal Vents” label deck. Some scientists theorize that life begins at deep-sea vents. Find three lines of evidence to support this claim.

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: Evolution, which involves genetic changes in a population of organisms over time, is often described…

A: Evolution is considered as a key unifying principle in biology. There is a popular saying that…

Q: In their laboratory experiments of simulations of early Earth, Miller and Urey observed the abiotic…

A: Miller and Urey Experiment was performed to demonstrate the chemical origin of life. In the…

Q: Chemiosmosis is a process that drives the creation of ATP. This process requires the use of specific…

A: There were many studies that focused on understanding the composition of the early atmosphere of…

Q: In the 1950s, scientists Miller and Urey conducted a classic experiment in which water, methane,…

A: Evolution is the study of origin of earth, origin of life on earth and relationship between…

Q: Now imagine that you are pretty wimpy ancestral eukaryotic cell, incapable of either cellular…

A: Introduction  Evolution is the process of change over time in the characteristics of populations 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: When comparing a eukaryotic organism with a prokaryotic organism, which of the following statements…

A: Bacteria and archaea are composed of prokaryotic cells. Usually, they have a diameter of 0.1-5 μm; a…

Q: Explain briefly the theory that suggests that: Life evolved from chemical substances present in the…

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

Q: When a human child goes through puberty, the organs associated with reproduction grow and become…

A: The human body is constantly growing or is repaired. Wear and tear of the body need repair while the…

Q: Which of the following statements supports the concept of the endosymbiotic theory? A. Proteins may…

A: The endosymbiotic theory explains the origin of mitochondria and chloroplast and also the formation…

Q: The following is a synthesis sequence or progression that is a hypothesis for Chemical evolution:…

A: The term chemical evolution can be connected with different aspects of evolution but in terms of…

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: Complex cells that contain a nucleus and other organelles are called_______ cells. A compelling…

A: Complex cells that contain a nucleus and other organelles are called__Eukaryotic_____ cells. A…

Q: The smallest particle of an element that retains all theproperties of that element is…

A: Biology is the study of living organisms. It deals with a wide array of fields like anatomy,…

Q: The May 2013 issue of National Geographic magazine showed a baby with the caption “This baby will…

A: Introduction According to a survey majority 56%  say they are not interested in medical facilities…

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: concerning the nucleus of human cells, which of the following is true? a.all human cell have nuclei…

A: Nucleus is a cell organelle present in all eukaryotic cells. It contains the genetic material of a…

Q: Which of the following is not true concerning the mitochondria and chloroplasts and is not evidence…

A: Bacteria are prokaryotic organisms. They lack the cellular organelles like golgi bodies and…

Q: Question #1: Please describe the specific enzymes that you are familiar with that are involved in…

A: " Since you have asked a multiple question , we will solve the first question for you. If you want…

Q: Which of the following changes in early prokaryotes could be predicted to result in the emergence of…

A: A cell is the basic structural, functional, and biological unit of all known organisms. Cells are…

Q: What are the implications of cellular and molecular biology for spontaneous generation and the…

A: The process of aggregation of changes that are heritable in one or other characters of a population…

Q: Why do scientists think that the increased availability of oxygen in the atmosphere was an O…

A: Answer :- The increased availability of oxygen in the atmosphere was an important contributing…

Q: Which of the following is not a fundamental characteristic of all of life on earth? a. all life…

A: While many organisms on Earth do indeed require oxygen for their metabolism there are also numerous…

Q: In a discussion about the origin of life, one student argued that RNA molecules must have come…

A: RNA and DNA are both nucleic acids that play crucial roles in the storage and transmission of…

Q: Endosymbiotic theory can be applied to Biomolecules as it invloves the development of nucleic acid…

A: Endosymbiotic theory: This theory explains how Organelles arose in organisms. Mitochondria,…

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: What is the common name What is the taxonomic name

A: **Common Name:** - This is the name that is used by the general population in language that is…

Q: Which of the following are considered emergent properties of life? Check all that apply. Electrons…

A: ANSWER:- Release of energy from glucose during metabolism Three-dimensional structure of different…

Q: Which of the following steps has not yet been accomplished byscientists studying the origin of…

A: The earth is formed before 4.6 billion years ago from the sun with continuous bombardment of huge…

Q: Scientists Stanley Miller and Harold Urey set up an experiment modeling the environmental conditions…

A: Conclusion from stanley Miller and Harold urey experiment is:- Life assembled from chemical building…

Q: 1. Design a cell/a system of cells using the following to show explicitly. Respiratory system,…

A: Introduction: The cell is the structural and functional unit of the body. Because it helps in…

Q: ts explain the existence of mitochondria and chloroplasts with the endosymbiotic hypothesis. What is…

A: Endosymbiotic hypothesis tries to explain the origin of mitochondria and chloroplast .

Q: An oceanographer sampling the surface of the ocean discovered many new organisms unknown to science.…

A: Classification of Organisms: 1) On the basis of Cell Nature: A) PROKARYOTIC  It is a typically…

Q: Which one of the following is not a characteristic of all prokaryotes (Archea and Bacteria)?

A: Prokaryotes  Prokaryotes are very ancient cellular organisms. Evidence supporte that they have…

Q: Imagine you are working in a lab and studying three species of yeast, which are eukaryotic…

A: The aerobic respiration is the process in which the oxidation of the glucose molecules occurs in…

Q: Evolution of complex cells Discuss the significant changes that are represented in the evolution of…

A: Prokaryotes are the organisms without a true nuclear member whereas eukaryotes are the organisms…

Q: What do we mean when we write “all life in Earth is fundamentally the same”? A shark and a seaweed…

A: Living organisms are well arranged, which means that they are specialized. All living organisms…

Q: This set of characteristics is consistent with:

A: Answer: Haploid and Diploid cell phase are those stages in which cell undergo sporophyte and…

Q: Explain the phrase: “life’s dual nature of unity and diversity”. Explain how evolution accounts for…

A:

Microbes

Microbes are microscopic living organisms that can only be detected with the help of specialized laboratory equipment called a microscope. These living organisms are so small that they are not visible to the naked eye.