On the right is a hypothetical tree of life. Where on the tree is LUCA (the last universal common ancestor) located? The X symbols denote extinction. Bacteria Archaea Eukaryota хх X X B E Origin of life O A B O D O E

Q: Miller experiment important

A: The process or reason for the formation of life earth was  studied by many scientists. As a result…

Q: Why might the very earliest earth have appeared purple?

A: The earth originated around 4.5 billion years ago.

Q: Antibiotic resistant bacteria evolve by natural selection. How does this process work? The…

A: Bacteria are microscopic single-celled organisms that can be found in almost every type of…

Q: Based on genes from O mitochordrial DNA the most accepted tree of life includes three domains.…

A: Mitochondria is a membrane-bound organelle that plays a vital role in producing energy for the cell.…

Q: A stromatolite is a form of sedimentary rock created by single-celled cyanobacteria (blue-green…

A: 1) (a) photosynthesis: photosynthesis occurs in plants on ancient earth as well as on present day…

Q: I'm very confused about these diagrams. Can anyone tell me how to understand them? Or where to look…

A: DISCLAIMER : Since you have posted a question with multiple sub-parts, we will solve first three…

Q: 1. Intro Why Classify? TO study the diversity of life, biologists use a classification system to…

A: Taxonomy deals with the identification and classification of organisms.

Q: How does natural selection explain the development of antibiotic resistant bacteria

A: The term “synapse” means coming together, that is, the location two entities or structures meet or…

Q: Which levels of the classification in Figure 26.3 do humans share with leopards?

A: Classification is a process of identifying, separating and naming an organism. More the level of…

Q: Domain: Node 1: Cell walls with Node 2: Chromosomes are protected by a nuclear envelope? Yes or no:…

A: Introduction: Bacteria : The Cell Wall Surrounds The Cell Membrane On All Sides. Peptidoglycan (also…

Q: Which of the following is evidence that eukaryotes and prokaryotes share a common ancestor?   a.All…

A: The cells of both prokaryotes and eukaryotes possess common structure organization (e.g presence of…

Q: lace the following organisms in the order in which they are thought to have appeared on the Earth…

A: The earliest life forms we know of were microscopic organisms (microbes) that left signals of their…

Q: A sample of bacteria is collected from soil in a field that was recently treated with pesticides.…

A: A pesticide is any substance that is used to kill, repel or control pests in plants or animals.…

Q: Which of the following pairs of taxa are most closely related?   A. Eubacteria and Archaea   B.…

A: Taxa are defined as the group or set of one or more population of a specific organism to form or…

Q: Serial endosymbiosis is the most supported theory on how the first eukaryotic cells evolved from…

A: They consist of eubacteria and archaebacteria. Eukaryotes have complex internal organisation and…

Q: What is the difference between microevolution and macroevolution? Lüffen birini seçin: O a.…

A: Evolution  - A process in which the hereditary level of an organism undergoes cumulative changes.…

Q: Which Of the following is not a reason why micro organisms  are commonly able to evolve very…

A: Microbes are microscopic organisms that have very diverse and significant roles in the world. Often…

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: During the Early _______________, life consisted of prokaryotic cells, but by the end of this…

A: The major evolution evens since the origin of the earth have been categorized into three major eras.

Q: Figure 2. Eukarya is now divided into 4 supergroups, Excavata, SAR Clade, Archaeplastida and…

A: Evolutionary groups According to the recent classification, eukaryotes are divided into four…

Q: Cyanobacteria was responsible for the increase in oxygen levels billions of years ago. They play a…

A: Answer : The Cyanobacteria were quite simple organism however carried out a crucial role in…

Q: particular, the origin of eukaryotes (LECA = Last Eukaryotic Common Ancestor). Bacteria Archaea Time…

A: Since you have posted a question with multi- sub parts , we will solve first three sub-parts for…

Q: Fossil evidence indicates that prokaryotes have been around for about 3.5 billion years, whereas the…

A: There are 2 hypotheses regarding origin of organelle. These 2 hypotheses are autogenous and…

Q: Which of the following provide evidence for an endosymbiotic origin of mitochondria and…

A: This hypothesis states that some of the organelles in eukaryotic cells like mitochondria and…

Q: .In 1668, the Early scientist believed that life arose from (1) . Italian physician (3) _ time,…

A: According to the theory of spontaneous generation, origine of life take place from dead and decaying…

Q: The term Anthropocene implies that

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

Q: When we consider the major forms of life on Earth in Figure 1.6, what are the characteristics that…

A: The living cells can be classified into two major categories. They are prokaryotes and eukaryotes.…

Q: Which of the following graphically shows the evolution of protein sequences? O Blosum-62 BLAST O…

A: Protein Sequencing:  Protein sequencing is the technique of determining the amino acid sequence of a…

Q: Based on this figure, which statement is true? The diversity of organisms on Earth has increased…

A: A phylogenetic tree is a diagram used to reflect or study the evolutionary relationships among…

Q: The genome of________ can be either RNA or DNA. a. a bacterium c. a virus b. a eukaryote d. an…

A: Introduction: DNA stands for 'deoxyribonucleic acid' and it is the hereditary material in humans and…

Q: Which of the following organisms appeared on earth first?     Prokaryotes     Eukaryotes…

A: Earth is considered to be the 4.5- 5 billions year old and is the habitat of vast form of lifes.

Q: hich of the following factors is a unique event in the evolution of the niche of microbes? A.…

A: Most natural habitats have a surprisingly diverse collection of microbial species. In these…

Q: Evolution is one of the major unifying concepts of modem biology. Explain the mechanisms that lead…

A: In biology, evolution means changes in the characteristics of organisms over many generations. The…

Q: UNSCRAMBLE THE WORDS   TOPIC: EVOLUTION, NATURAL SELECTION, HISTORY OF LIFE ON EARTH  1. ( M C A…

A: 1. Caladogram 2. Embryology 3. Paleontology 4. Population 5. Pontificate

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: )Earth is estimated to be approximately

A: Only the 1st question has been answered explaining the correct and wrong choices as per Bartleby…

Q: You have purified cytochrome C from a newly discovered species of bacteria called VCU. When you…

A: Changes in the genetic sequences and amino acid sequences of organisms are the result of random…

Q: Choose the word that corresponds to the definition. v A chemical that contains a carbon double…

A: Since the words are missing answers are from a general prospective.    Biology is the branch of…

Q: The table above shows the amount of the 4 DNA nucleotides found in 6 different species. Another…

A: DNA is the genetic material found in the nucleus of the eukaryotic organisms and in the nucleoid…

Q: Researchers looking for fossils of the earliest life forms face many hurdles. For example, few…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: Which of the following occurred first in the history of life on earth? Colonization of land…

A: In the starting phase of formation of the earth, the planet was filled by reducing gases that did…

Q: On the right is a hypothetical tree of life. Where on the tree is LUCA (the last universal commor…

A: Cladogram --  Cladogram is a diagrammatic presentation of relationship between species.  It can also…

Q: All living things are divided into three domains: bacteria, archaea, and eukarya. They have several…

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

Q: Which of the following does not contribute to genetic variation? transduction transformation…

A: Genetic variation in the bacterial population is important to respond to the changes in the…

Q: Which of the following was likely MOST important for life to begin existing on Earth?   A. sunlight…

A: The correct answer is-  C. Sunlight

Q: Based upon our current understanding of the abiotic origin of life, which of the following molecules…

A: Abiogenesis is the generation of life from nonliving matter. It is now more precisely known as…

Q: Which of the processes named here is the LEAST likely to contribute to the evolution of genetic…

A: Genetic diversity is known as the variation or diversity in the genetic characteristics (recessive…

Q: The oldest unquestioned fossil cells  (Choose any/all that apply/are correct.) Group of answer…

A: Oldest unquestioned fossil cells were basic in structure (prokaryotes). There were found as the…

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

A: Eukaryotes are defined as the multiple cellular organisms and each cell is specialised to perform…

Prokaryotic evolution

The term evolution means the gradual change or a transformation from a simple or primitive state to a complex or advanced state. Prokaryotic evolution is a concept that involves the evolution of the form and function of most primitive organisms (prokaryotes) through several stages and changes to form diverse life as a part of organic evolution.