Why do microbiologists believe that the Archaea were the type of microbes from which all other life descended

Q: Which of the following organisms is a prokaryote?   fungus algae protozoa archaea both archaea and…

A: Archaea is prokaryote.while rest of the organisms are eukaryotes.

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: Which of the following prokaryotes lacks cell walls?a. rickettsias c. Mycobacteriumb. mycoplasmas d.…

A: The living world is divided into two types of organisms- single-celled or prokaryotes and…

Q: The evolution of the highly complex eukaryotic cell was possible because.. A) Mesosomes released…

A: Correct answer is (B). Two different prokaryotic bacterial species entered the complex cells as endo…

Q: Archaea are often found living in extreme conditions of heat, salt, and acidity, which are similar…

A: Introduction  Origin of life on earth can be traced back to 3.4 billion years ago and as we now know…

Q: different environments. Anerobic organisms need oxygen to survive, while aerobic organisms can…

A: Distinction of aerobic and anaerobic respiration depends on the oxygen requirement. There are two…

Q: Using the analogy of a one-hour countdown timer, when did prokaryotes originate? When did the…

A: The timer starts from the top at Earth's origin and moves clockwise to the present, making one full…

Q: This group of prokaryotes are not actually closely related but are grouped together because they are…

A: Prokaryotes are the single celled organisms without a proper nuclear membrane. Bacteria is included…

Q: A colleague proposes that the Archaea may be the oldest life form currently inhabiting Earth. Do you…

A: Archaea forms the domain of uncellular organisms.These organisms don't have nucleus in the cell and…

Q: All of the following statements are true about the3-domain classification system EXCEPT:(a) The…

A: Based on the cellular composition of an organism it is divided into 3 domains of life.

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: Give explanation  Which of the following statements is TRUE based on the phylogenetic tree shown?…

A: Phylogenetic trees function as graphical representations of the evolutionary connections between…

Q: In which way has the study of biology helped us to control infectiousdiseases?

A: Infectious diseases are caused by pathogens like viruses, bacteria, and fungi. They can be…

Q: What is the evolutionary advantage of bacteria that have flagella vs. bacteria that do not?

A: Flagella is a hair-like structure found in many microorganisms (including bacteria) that allows them…

Q: When did prokaryotic cells first appearon Earth?

A: The age of Planet Earth is around 4.5 billion years. It was formed when a swirling mass of gas and…

Q: Do archaea have Periplasm?

A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…

Q: Which of the following types of pathogenic prokaryotes cause cholera? A. archaea that release an…

A: Introduction :- Exotoxins are toxic proteins secreted by certain types of bacteria, including some…

Q: Can prokaryotes evolve rapidlyin response to environmental change?

A: Prokaryotes are the primitive organisms that is is they are less developed. They do not have…

Q: The evolution of eukaryotic cells most likely involved

A: Answer - Option A - Endosymbiosis of an aerobic bacterium in a larger host cell - the endosymbiont…

Q: Explain the statement that both types, bacteria and archaea, have the same basic structures, but…

A: Introduction: Bacteria and archaea are prokaryotic cell that means without complete nucleus. They…

Q: Archaea are most closely related to which of the following major groups on the tree of life?   a.…

A: To classify bacteria, archaea and eukaryotes, three-domain system of biological classification was…

Q: Which well-known microbiologist do you think had the greatest influence on microbiology? Why?

A: According to me, i think Louis Pasteur had a great influence on microbiology. He is also considered…

Q: Chapter 1- The Main themes of Microbiology List the organisms that are studied in microbiology.…

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

Q: The extra energy required for the evolution of the highly complex eukaryotic cell was possible…

A: A cell is composed of several cell organelles. Besides the nucleus, mitochondria and chloroplasts…

Q: How does the emergence of endosymbiotic theory change the way humans view microorganisms? Will…

A: Prokaryotic cells are simple in structure and are devoid of cell organelles like golgi bodies and…

Microbial Physiology

Microbial physiology is the branch of microbiology that is associated with studying the physiology of fungi, bacteria, and viruses. It is an important field of science concerning functional genomics and metabolic engineering.

Chemotaxis

The organism’s movement in a particular direction as a response to certain chemicals that are available in the environment is defined as chemotaxis. In brief, it can be defined as the occurrence of an organism’s movement in response to a certain chemical stimulus.