What do you know about the ecology of the first cells that might suggest that we should look for similar cells among the bacteria and archaeans that currently live in extreme environments (such as salt mines, hydrothermal vents, deep in caves, etc.)?

Q: What were Virchow, Koch, and Pasteur's ideas on competition and domination between cells and germs?

A: Rudolf Virchow had ideas that opposed the germ theory of disease proposed by Robert Koch and Louis…

Q: Scientists use the particular structure of nucleic acids and other chemicaldifferences to separate…

A: The two prokaryotic domains, Bacteria and Archaea, have important differences, including the…

Q: What is the endosymbiotic hypothesis and what evidence isthere to support it?

A: The Endosymbiotic Theory was initially proposed by Lynn Margulis in the 1960s. She proposed that the…

Q: In what ways are modern eukaryotes a combination of attributesof Bacteria and Archaea?

A: According to the leading hypothesis of the Endosymbiotic Theory, eukaryotes arose by the fusion of…

Q: WHICH ORGANISM CAN MOST LIKELY BE CLASSIFIED IN THE DOMAIN BACTERIA?

A: all organisms are divided into three basic domains ,they are bacteria , archea and eukarya .

Q: What Kingdom does the pictured organism belong to? O Archaea O Protista O Plantae Animalia

A: Introduction :- Protists are eukaryotic organisms that are neither plants, animals, nor fungi but…

Q: Which domain, Archaea or Eukarya, is more closelyrelated to Bacteria? What evidence is there to…

A: Bacteria are microscopic single-celled prokaryotes that thrive in diverse environmental conditions.…

Q: For the organisms in the picture below: 1. To what kingdom do they belong? 2. Are they prokaryotic…

A: Unicellular organisms are not visible to the naked eye. Their visualization requires the use of…

Q: Compare and contrast the characteristics of the purple bacteria and the green bacteria.

A: The R.H. Whitaker classification system categorizes the organisms into five major groups. The…

Q: characters of bacteria.

A: An organism that can not be seen through the naked eye are refers as microorganism. To see these…

Q: how many cells does  Archaebacteria have

A: * Archaebacteria are prokaryotes  thought to be bacteria. *They have a unique ribosomal RNA type.…

Q: Propose a hypothesis to explain how bacteria and archaea could have,together, given rise to…

A: Cyanobacteria and archaea are photosynthetic microbial groups that are thought to have given rise to…

Q: Provide a substantial theory regarding how eukaryoticcells originated and how multicellularity came…

A: Prokaryotic cells are those that lack nucleus and other membrane bound organelles. Eukaryotic cells…

Q: What evidence supports theidea that the major organelles of eukaryotes were onceBacteria?

A: Endosymbiotic theory states that there are certain organelles present inside the present eukaryotic…

Q: What is the significance of Pasteur’s experiment to test the germ hypothesis? a. It proved that…

A: There are some living organisms that cannot be observed by the naked eye and only can be seen under…

Q: Which statement best explains why a third domain, Archaea, was added to the original two domains of…

A: Introduction: According to paleontological evidence, prokaryotes were thought to be the first living…

Q: Relate bacterial, archaeal, and eukaryotic cells to the last common ancestor.

A: The last common ancestor is thought to be a small, single celled organism. It is supposed to contain…

Q: According to their morphology how are bacteria classified?

A: The morphological characteristics of bacteria generally include shape, structure, size, and…

Q: In a biology lab, students view a droplet of pond water under a microscope.  One student observes a…

A: Microscope are instruments which helps magnify the organisms which are smaller and cannot be seen by…

Q: Give two examples of gram positive bacteria?

A: Gram staining is a technique that is used to differentiate between bacteria based on their different…

Q: What is the name of bacteria and the archaea shown below and  also give  some detailed  information…

A: Introduction Microorganisms:- An organism that can be seen only through a microscope, microorganisms…

Q: What types of environments are inhabited by archaea? Why are methanogens important?

A: Microorganisms are those that can only be seen with the help of microscope and can not be seen wit…

Q: Why were Archaea originally thought to be simply unusual forms of Bacteria? What lines of evidence…

A: Biological classification is a method in biology to differentiate living beings based on their size,…

Q: looking at some pond water under the microscope, you notice an unfamiliar rod-shaped cell about 200…

A: Single-celled creatures belong to the Archaea domain. Prokaryotes are microorganisms without cell…

Q: nobacteria belong to the domain eukary: True

A: Cyanobacteria also provide the oxygenic photosynthesis along with the eukaryotic algae. As the…

Q: What is the most important reason for evolution of bacteria? Explain briefly. GiG of cancer by…

A: Bacterial evolution has continued over the billions of the years since the precambian time period.…

Q: What is one of the species of Doamin Archea? What was is it determined to be a member of the Domain…

A: Bacteria are a type of biological cell that constitute a large domain of prokaryotic microorganisms.…

Q: Differentiate the following groups of organisms : Archaebacteria (ancient bacteria), Eubacteria…

A: Archaebacteria: These are one of the oldest living organisms to be known on earth. They are…

Q: Name five structures that are found in bacteria and would increase their chances of surviving or…

A: Bacteria are classified under prokaryotes. These are small and dominate the Earth. They exist almost…

Q: Suppose that one of Pasteur's swan neck flasks had broken, such that the neck came off. What would…

A: In order to determine whether sterile nutritive broth could spontaneously produce microbial life,…

Q: State specific factors that contribute to the rapid evolution of bacteria and archaea.

A: All living species are regularly classified into three fundamental domains: Bacteria, Archaea, and…

Q: How did the appearance of Cyanobacteria change the atmosphere of the ancient earth ?

A: Cyanobacteria/Blue green algae are photosynthetic.   They convert sunlight into energy and…

Q: Describe the relationship between the original bacteria kingdom called monera and the domain called…

A: Taxonomy is the science of classifying organisms on the basis of their morphology, physiology,…

Q: Cynobateria and heterotropic bacteria are different from each other but fall under eubacteria of…

A: The members of Kingdom Monera are unicellular prokaryotes, i.e, they do not contain a well-defined…

Q: Let’s say we’ve just found a single-celled organism living in a pond. This organism has a nucleus, a…

A: The five kingdom classification divides the living organism in two different group on the basis of…

Q: Discuss the Endosymbiotic Theory. Do you think it is a strong explanation on how the eukaryotes…

A: Endosymbiosis is the theory that eukaryotic cells were formed when a prokaryotic cell ingested some…

Q: What are the 3 groups of bacteria based on their unique cell wall components.

A: Introduction:  classification of bacteria helps scientists to understand the different…

Q: which kingdom does bacteria belong? and why?

A: In modern classification all living things are divided into 3 main domains which are named as:…

Q: For instance, you encountered an unusual one-celled organism, what part/s of its cell would you use…

A: According to the five-kingdom classification by R H Whittaker, organisms are grouped into Monera,…

Q: Bacteria were originally classified as one Kingdom called Monera. Why are they now in two distinct…

A: R.H . Whittaker was the scientist who divided the organism into 5 kingdoms and gave 5 Kingdom of…

Q: How many species of Bacteria and Archaea have been named?How many likely exist?

A: Microorganisms are the microscopic organisms that cannot be seen through the naked eye.…

Q: List some ways that archaea differ from bacteria

A: Any of a group of single-celled prokaryotic organisms (that is, organisms whose cells lack a…

Q: How might bacteria be involved with reproductive isolation and with the origins of multicellular…

A: Animals developed in bacterial-infested waters, but the role of bacteria in animal evolution is…

Q: Describe five archaeans that live in the most inhospitable environment

A: Archae are prokaryotes with unique properties that make them distinctive from bacteria. They are…

Q: Why are archaebacteria called living fossils?

A: Introduction: "Archae" stands for "ancient", archaebacteria are thought to evolve from the very…

Q: Bacteria evolved independently of archaea and eukaryotes, suggesting that…

A: Bacteria, archaea and eukaryotes are the 3 basic domains into which of all living forms been…

Q: When you see the evolutionary tree, what does it tell you about microbial evolution? How have we…

A: Key facts that we derive from evolutionary bree of micro-organisms can be as follows -…

Q: What type of evolution do bacteria have? Is it Divergent, Convergent, or Parallel?

A: Evolution occur to natural selection or by mutation. The role of natural selection is to pass on the…

Q: Compare and Contrast  true bacteria vs archaeans

A: Comparision between  true bacteria and archaebacteria are given below: 1.There is a difference in…

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.