Tears have chemicals that targets bacterial plasma membrane and kills cells    Group of answer choices True False

Q: Bacteria are believed to have evolved some _______________ years ago. The bacterium Staphylococcus…

A: Since you have asked multiple questions, we will answer only the first three question for you. If…

Q: Read It! Scientists have discovered that people carry a staggering variety of bacteria on their…

A: Answer A Hypothesis Because hypothesis given based on the limited evidences available. Here also,…

Q: A type of cell wall that is often toxic.   Question options:   a)  gram-positive   b)…

A: A cell wall is a rigid layer surrounding a cell located outside of the plasma membrane that provides…

Q: Describe 4 ways bacteria have a positive impact in our lives.

A: Bacteria are our friends as well as foe. If they harm us by causing diseases and many problems, they…

Q: Viruses contain either DNA or RNA. Viruses possess their own metabolic system      a. FIRST…

A: Both the RNA and DNA are nucleic acids that are made up of nucleotides. They are classified as…

Q: Select all of the correct answers. Disposable aprons are worn because: They protect clothes from…

A: Given: Disposable aprons are worn.

Q: It is the period wherein the bacteria is sensitive to radiation and antimicrobial agents. Question…

A: Often bacterial growth involves different phases in its life cycle. These different phases are very…

Q: Cats and dogs transfer bacteria onto their fur by: SniffingLickingShakingRunnin

A:

Q: QUESTION 6 Protein made by Gram positive or Gram negative bacteria a. endotoxin b. exotoxin QUESTION…

A: 8) cell wall of bacterias are formed of lipopolysaccharide. The endotoxin is an toxin released by…

Q: Question: Give at least 5 Genus and Species under G(+) cocci and G(+) bacilli

A: Solution : Gram-positive cocci include Staphylococcus (catalase-positive), which grows clusters, and…

Q: Explain why the mouse in part (d) died.

A: Several experiments were carried out to find the genetic material in living organisms. The first…

Q: You find a rotting whale on the beach. You smell that distinctive smell of death. That death smell…

A: *finding the rotten whale on the beach will  smell . * And one can find that distinctive smell of…

Q: While the skin has the ability to block UV light which may cause damage, it also has the ability to…

A: Skin is the body’s outer coverings made up of three layers ( Epidermis, Dermis and Hypodermis),…

Q: A classmate claims that there are the same number of cells first placed on a NA plate with their…

A: While inoculating a bacterial colony, it is necessary to spread the bacteria on the agar plate to…

Q: In trypan blue exclusion method the cells that take up the dye are A) Living B) Non Living

A: Hi dear, here’s your answer. The dye exclusion check is employed to work out the quantity of viable…

Q: Which statement describes how phenolic compounds control microbe growth? They cause protein…

A: Phenolic compounds consist of phenol like compounds. They are persistent on the surface and are less…

Q: In a laboratory experiment, a student grew a colony of bacteria from a fecal sample.  She suspected…

A: E. coli is Eicherichia coli and it is a facultative, gram negative, anaerobic bacteria which is…

Q: Can hand sanitizer kill West Nile virus

A: Sanitizers that have more than 60% alcohol are generally recommended for preventing diseases.…

Q: Acid Fast Cells: (You may select more than one.) stain quickly contain acid in their cell walls…

A: Gram staining is a technique which is used to identify the bacterial cell type, whether it is gram…

Q: Need help Do you think a pandemic can outbreak from environment? Explain it using internal/external…

A: There are various factors that would cause outbreak of disease leading to pandemic situation, among…

Q: The last time we ran a gel, we ran a 1% gel. Why would we choose to run a 3% gel today on the worms

A: percentage of gel varies to see a better separation and resolution

Q: Pathogens can live on surfaces for quiet some time. What can you do to prevent transmissions from…

A: The pathogens are microorganisms like bacteria and virus that has the potential to cause various…

Q: Give a disease-causing pathogen or microbe and answer the following questions.

A: Introduction :- A pathogen is a disease-causing organism. Microbes are found in abundance in your…

Q: Which antibiotic affects cell wall synthesis?a)streptomycin b) erythromycin c) tetracycline…

A: Antibiotics are a form of antimicrobial drugs that fight against disease-causing pathogenic…

Q: Some bacteria can fix . gas for plants ...

A: Plant do photosynthesis and produce carbohydrates such as glucose. For this process to occur, plant…

Q: HIV is a virus that kills helper T cells. HIV is not the direct cause of death in people who have…

A: HIV (Human immunodeficiency virus) is a retrovirus that damages the cells of our immune system which…

Q: Some diseases shows signs and symptoms of the diseases quickly thank other diseases. How that…

A: Acute conditions/illness because of  Infections (bacterial ,viral etc) Injury  Accidents  Misuse of…

Q: Prions are infectious proteins: Select one: a. TRUE b. FALSE

A: Infection is a condition in which the body is affected by an external agent like bacteria, viruses…

Q: why are gram-negative bacteria unevenly distributed on a slide? Why are gram negative bacteria…

A: Bacteria are the most abundant microbes found on the earth. The varied shapes, sizes and functions…

Q: A number of different types of bacteria were grown at different temperature ranges. Which population…

A: Bacteria are unicellular prokaryotic microorganisms (nucleus is not enclosed in a nuclear membrane)…

Q: ntibiotics are medicines used to fight bacterial infections. These drugs kill prokaryotic cells…

A: Given: Antibiotics are medicines used to fight bacterial infections. These drugs kill prokaryotic…

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: Capsule presence aids in efficient transport of nutrients for bacteria   Group of answer choices…

A: The capsule is a thick viscous layer which is about 0.2µm that is present in the cell wall of some…

Q: A colony of spherical bacteria which are in a cluster are classified as:   Question 26 options:…

A: Introduction: Bacterial cells might be discovered arranged differently or existing on their own. The…

Q: The table below shows examples of infectious and non-infectious diseases. Complete it by answering…

A: …

Q: 1. While playing saxophone . Sometimes the reed can get bacteria or fungus growing on it. What…

A: SAXOPHONE is an instrument and it is made up of brass and it is played with the mouth piece.it is…

Q: Can food born disease spread if yes write down the mode of spread

A: Any organism capable of causing an infection or disease is called a pathogen. There are many…

Q: Draw a prokaryotic cell and show the different target parts of the cell where antibiotics can…

A: The prokaryotic cells are the primitive cells that do not contain any membrane bound organelles…

Q: Find out the role of microbes in the following (a) Single cell protein (SCP)

A: Introduction Microbes are tiny living things that are found all around us, they are unicellular…

Q: Word bank: bacteria, archaea, algae, fungi, protozoa, invertebrates  Blank 1________ never cause…

A: Bacteria , algae , fungi , protozoa can cuase diseases in humans. Many invertebrates are also…

Q: A new chemotherapeutic drug kills bacteria but not humans. Discuss the possible ways the drug may…

A: Since the discovery of penicillin by Sir Alexander Fleming, in 1928, the treatment of bacterial…

Q: Give at least 5 Genus and Species under G(+) cocci

A: Gram positive cocci-  Staphylococcus aureus. Micrococcus luteus . Staphylococcus saprophyticus…

Q: I am a gram-negative bacteria, only a chemoheterotroph, a pathogen and spiral shaped. What am I?…

A: Chemoheterotrophs are bacteria that get their energy from organic chemical molecules and get their…

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: The bacteria that are killed are considered "selected against" True The whole statement is true.…

A: An antimicrobial is an agent that kills microorganisms or stops their growth.

Q: meat in the refrigerator has a strange odor

A: Answer Beef that's gone bad has a sour smell. Sometimes with an aroma like milk that has gone off.…

Q: Can huggies wipes kill the West Nile virus

A: Wipes are used to clean or wipe the skin. Huggies wipes are intended for babies.

Q: Why can the flu virus cause pandemics?

A: A pandemic is a disease that spreads across a vast geographical area and affects a large proportion…

Q: Cell membrane contains hydrophobic heads and hydrophilic tails. Group of answer choices True…

A: Lipid molecules comprise around half of the mass of cell membranes. All of the lipid particles in…

Q: Which type of bacteria survive more easily in dry environments?   Question 4 options:   gram…

A: Bacteria are small prokaryotic unicellular organisms.  They have different abilities to resist…