Which of the following options best describes the process of selection for antibiotic-resistant bacteria in the presence of an antibiotic? Antibiotic resistance occurs when the human body resists an antibiotic; the bacteria are not under selective pressure Antibiotic-resistant cells are naturally stronger, so they always take over in the presence of antibiotic- sensitive cells Antibiotics kill off sensitive cells, while resistant bacteria survive and multiply O In the presence of antibiotics, most bacterial cells react by becoming resistant before they start dividing again

Q: Do bacteria and archaea have more or less diversity than eukaryotic organisms? Choose the best…

A: The diversity of organisms is represented by how much space they take up on the tree. Since…

Q: Drug resistance occurs: - when antibiotics are used incorrectly - against antibiotics and not…

A: Antibiotics are the drugs that are used to inhibit the growth of microbes or kill them.

Q: How is horizontal gene transfer important in spreading antibiotic resistance? It allows resistant…

A: Horizontal gene transfer is a common phenomena observed mostly in the cases of bacteria where the…

Q: Bacteria that live in the digestive systems of cows help break down the plants that cows eat,…

A: An interaction (or relationship) between two unlike species and they both get benefited is called…

Q: The previous scenario is a greatly-simplified demonstration of how antibiotic resistance is selected…

A:

Q: Fill in the Blank. Round it to the nearest whole number. A mutation occurs in a single bacterium…

A: The time taken by bacteria to divide in a culture so that its population is doubled is known as…

Q: How does quorum sensing make some bacteria more likely to cause disease? Quorum sensing disrupts the…

A: Quorum Sensing -- This system uses two things density and population . Density -- Matter amount is…

Q: How well do you think bioremediation achieves the goal of cleaning up pollution? Your claim should…

A: Bioremediation is the process of degrading, removing, modifying, immobilising, or detoxifying…

Q: Which of the following best describes the relationship between drug-resistant bacteria and…

A: Introduction :- Antibiotics are a class of drugs that prevent the growth of bacteria. These destroy…

Q: Before population replicates After population replicates 60 60 50 50 40 40 30 30 I# cells O# cells…

A: INTRODUCTION: Here the bacterial growth occurred in least resistance as well as highest resistance…

Q: How would Dr. Eijkman test his new hypothesis?

A: A hypothesis is an assumed explanation of a process or phenomenon. It is required to be tested using…

Q: Why can bacteria undergo rapid evolutionary change? a) Bacteria pass through numerous bottlenecks b)…

A: Introduction Bacteria are prokaryotic cells I.e they are single-celled organisms with a small size.…

Q: Antibiotic resistance is a real concern for the continued existence of humans. Bacteria exchange…

A: Antibiotic resistance: Antibiotics are the medicines that are used for the fighting the bacterial…

Q: Certain strains of bacteria that were killed by the antibiotic penicillin in the past are now…

A: Answer  - Option D - Individual bacteria gradually became tolerant to increasing levels of…

Q: Quorum sensing is one of the coolest things we've learned about this semester, because it is one way…

A: The quorum-sensing feature is focused on the bacterial population's local density in the surrounding…

Q: There are concerns about overuse and misuse of antibacterial drugs, and the association of these…

A: Often antibiotic resistance in bacteria is a concern to the medical society.

Q: how can bacteria populations become resistant to antibiotics?

A: *Resistance to antibiotics means when an antibiotic lost its ability to kill or control  bacterial…

Q: The term "Superbug" refers to? A. Certain bacteria strain that can grow in all kinds of unfavorable…

A: Introduction :- Superbugs are bacteria, viruses, parasites, and fungi strains that are resistant to…

Q: In two separate paragraphs, explain how antibiotic resistance related to... 1. Evolution 2.…

A: Antibiotic resistance is an outcome of evolution through regular choice. The antibiotic activity is…

Q: Describe one adaptation a bacteria could have that would allow it to be resistant to an antibiotic

A: Introduction  Antibiotics are used to treat bacterial infections by killing or inhibiting the growth…

Q: The iCHIP allows scientists to: grow bacteria in the natural environment. grow large numbers of a…

A: The ichip is an assembly of flat plates containing multiple registered through-holes. The plates are…

Q: In the 20th century, one of the greatest breakthroughs is Antibiotics and has long been regarded as…

A: The quick rise of resistant microorganisms is happening around the world, imperiling the adequacy of…

Q: . Why is overuse of antibiotics resulting in more antibiotic-resistant strains of bacteria to evolve…

A: The antibiotic resistance happens when the bacteria change because of the utilization of these…

Q: Scientific evidence suggests that cells evolved as symbiotic relationships between bacteria (or…

A: Individuals of two (or more) distinct species have a close ecological interaction known as…

Q: If an antibiotic was able to destroy the pili of bacteria, what effect would you expect it would…

A: Pili are thread like structures found on the surface of bacteria. Their primary function is to…

Q: Experiment #1: Scientists thought beriberi might be caused by bacteria. They injected chickens with…

A: In case of any scientific experiment the selection of experimental and control groups are very much…

Q: 3. The evolution of antibiotic resistance in disease-causing bacteria is a serious public health…

A: Bacteria are the single celled microorganisms which comes under the kingdom Monera  Types of…

Q: we are protected from them by our gut's mucosal lining and the cells (macrophages, dendritic cells,…

A: Peyer’s patches are groups of lymphoid follicles in the mucus membrane that lines our small…

Q: The flashlight fish has an organ under its eye that emits light,which serves to startle predators…

A: Quorum sensing is a way of communication between cells. It is a signaling pathway in bacteria that…

Q: 3. A team of students wants to study the effect of temperature on bacterial growth. They put the…

A: Temperature plays a major role in the cell growth and its proliferation. An optimum temperature is…

Q: In 1887 a strange nerve disease attacked the people in the Dutch East Indies. The disease was…

A: A disease is a state of unhealthiness of the physical body, mind, and social interaction. A disease…

Q: scientist examines a bacterium and learns that it carries a gene that makes it resistant to…

A: Bacteria can transfer the genetic information in a horizontal fashion (between individuals) by…

Q: Which of these best demonstrates mutualism between certain types of bacteria and humans? O Bacteria…

A: Mutualism is a type of relationship between the host and a symbiont, where both organisms benefit…

Q: . You are discussing the choice of the "oil-eating" bacteria that you will use to clean the affected…

A: Introduction Every year, millions of birds, animals, and fish die as a result of oil spills. The…

Q: In 1887 a strange nerve disease attacked the people in the Dutch East Indies. The disease was…

A: Note: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question…

Q: You will have the opportunity to explore the effectiveness of six different antibacterial substances…

A: A scientific experiment is done to test the validity of the hypothesis and includes dependent and…

Q: You are discussing the choice of the “oil-eating” bacteria that you will use to clean the affected…

A: Oil spills are disasters that kill millions of birds, mammals and fish every year. The world's…

Q: Why is overuse of antibiotics resulting in more antibiotic-resistant strains of bacteria to evolve?…

A: Overuse of antibiotics make the germ stronger and resistant towards common antibiotics. Antibiotics…

Q: Which of the following is true regarding bacteria and antibiotics? Some bacteria have a lysogenic…

A: Bacteria are prokaryoyic organisms,  virus are obligate parasites .antibiotics are chemicals from…

Q: e antibiotic resistant organisms before 1942

A: Antibiotics are antibiotics that are used to treat bacterial illnesses in humans and animals. They…

Q: In 1887 a strange nerve disease attacked the people in the Dutch East Indies. The disease was…

A: A disease is a state of unhealthiness of the physical body, mind and social interaction. A disease…

Q: Which of the following is NOT a reason for the high levels of bacterial genetic diversity? mutation…

A: Bacteria show diversity in their genetics by means of various types of horizontal gene transfer and…

Q: Which of the following best describes the mechanism of action of the antibiotic streptomycin?…

A: Streptomycin is a broad spectrum of antibiotics that can act against both gram-positive and…

Q: Disease-causing parasites and bacteria differ in that _____ Select one: a. parasites only infect…

A: The above explanation for each option is given below.

Q: In his experiments using bacteria and mice, Griffith discovered that: heat-killed bacteria can kill…

A: During the mid-nineteenth century, researchers began the search for genetic material. Based on the…

Q: Why do you think there are limited scientists like microbiologists that focuses in studying…

A: Archae are group of single celled prokaryotic microorganisms and are separate from bacteria.

Q: Which of the following is not an example of horizontal gene transfer? the transmission of genetic…

A: A bacteria is a prokaryotic organism of unicellular nature. Bacteria viruses are known as…

Q: Explain the process of adaptation of individual organisms to their environment (i.e. some…

A:

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.