which of the following correctly identifies the two bacteria that are the most common causes of foodborne intoxication? bacillus cereus and staphylococcus aureus bacillus cereus and clostridium perfringens staphylococcus aureus and e. coli campylobacter and clostridium perfringens
Answers
Foodborne illnesses are most frequently caused by bacteria, which include perfringens, Bacillus subtilis, and Bacillus cereus. Hence (c) is the correct option.
The food is typically contaminated with bacteria, such as salmonella or Escherichia coli (E. coli), or a virus, like the norovirus, in cases of food poisoning. One of the most frequent types of foodborne sickness in the US is caused by the bacteria campylobacter. The majority of Campylobacter foodborne disease cases are sporadic and do not occur during outbreaks. Based on the two different types of cell walls that bacteria have, they can be loosely categorised as either gram-positive bacteria or gram-negative bacteria.
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which of the following correctly identifies the two bacteria that are the most common causes of foodborne intoxication?
a. bacillus cereus and staphylococcus
b. aureus bacillus cereus and clostridium
c. perfringens, Bacillus subtilus, Bacillus cereus
d. staphylococcus aureus
e. coli campylobacter and clostridium perfringens
Related Questions
mass extinction definition
Answers
Answer:
The extinction of a large number of species within a relatively short period of geological time, thought to be due to factors such as a catastrophic global event or widespread environmental change that occurs too rapidly for most species to adapt.
Explanation:
Hope this is helpful.
Nucleosomes are composed of all of the following except ________.A) H1B) H2C) H3D) H4E) H5
Answers
Nucleosomes is not composed of H1. A) H1 is the correct answer.
Nucleosomes are structural units of chromatin, consisting of DNA wrapped around a core of histone proteins. The core histones that make up the nucleosome include H2A, H2B, H3, and H4. These histones play a crucial role in organizing and compacting DNA within the cell nucleus. They have a globular structure and form an octamer around which the DNA is wrapped.
Histone H1, also known as the linker histone, is not a part of the nucleosome core. It binds to the linker DNA between nucleosomes, helping to stabilize and compact the chromatin fiber further. While H1 is involved in chromatin structure and gene regulation, it is not a component of the nucleosome core particle itself.
So, the correct answer is A) H1.
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is the bird a predator animal or a prey animal?explain your answer
Answers
Answer:
Birds can be both predator animals and prey animals. Some predatory birds, such as eagles, hawks, and owls, hunt and kill other animals for food. Other birds, such as small songbirds, can be prey animals for larger predators like cats and hawks.
Which would best explain why the production of transgenic plants may be harmful?
A. They are used in the production of rare medicines
B. They contain vital nutrients
C. They reproduce rapidly
D. They produce natural insecticides which could kill beneficial insects
Answers
Answer:
The answer would be the last one
A person who suffers from phenylketonuria (PKU) is unable to process phenylalanine because of a dysfunctional ______, a protein that is encoded by their DNA.
Answers
Answer:
enzyme
Explanation:
Enzymes are a type of protein.
Answer:
Enzyme
Explanation:
A person who suffers from phenylketonuria (PKU) is unable to process phenylalanine because of a dysfunctional enzyme, a protein that is encoded by their DNA.
Match each description with whether it relates to epidermis or dermis of the skin.
Connective tissue
Skin pigmentation
basal cells
Blood vessels
Keratinocytes
Elastic and collagen fibers
Sweat glands
Arrector pili muscles
Answers
Epidermis or dermis related descriptions and their matches are: Connective tissue -Dermis Skin pigmentation -Epidermis Basal cells -Epidermis, Blood vessels -Dermis, Keratinocytes -Epidermis, Elastic and collagen fibers -Dermis, Sweat glands -Dermis, Arrector pili muscles -Dermis
The skin is an organ with two major layers: the epidermis and the dermis. The epidermis is the top layer of skin, whereas the dermis is the lower layer of skin. These two layers work together to protect the body from external influences and keep it hydrated.
Here are the matches between the descriptions and the layers: Connective tissue - Dermis, Skin pigmentation - Epidermis, Basal cells - Epidermis, Blood vessels - Dermis, Keratinocytes - Epidermis, Elastic and collagen fibers - Dermis, Sweat glands - Dermis, Arrector pili muscles - Dermis.
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Which of the following best describes a stop codon? A) They are codons that indicate termination of protein synthesis. B) They are codons that are extra in the genetic code and are not used. C) They are codons that indicate when to create new peptide bonds. D) They are codons that signal when the RNA strand is done being read. E) They are codons that indicate when to begin folding the polypeptide.
Answers
Answer:
A) They are codons that indicate termination of protein synthesis.
Q2. If a person was interested how light passes through clear substances, what field of science would be the best course of study?
quantum mechanics
electromagnetism
thermodynamics
optics
Answers
Answer:
optics
Explanation:
PLEASE HELP! WILL AWARD BRAINLIEST!
Discuss how the structures of the different chambers and vessels of the heart relate to their functions.
Answers
Answer:
Found this off of google, "The heart works as two pumps, one on the right and one on the left, working simultaneously. Blood flows from the right atrium to the right ventricle, and then is pumped to the lungs to receive oxygen. From the lungs, the blood flows to the left atrium, then to the left ventricle.:
Hope this helps!
Have a great day and stay safe! :) :D
A researcher designed an investigation to test what effect eating different types of food would have on
blood insulin levels. She selected 10 male subjects who were all 25 years of age and in good health. The
experiment took place over 3 days. At 8:00 a. M. On each day, the subjects ate a meal consisting of only 1
type of food. They had their blood insulin levels measured after consuming the meal. On Day 1 they ate a
high fat diet, on Day 2 they ate a high protein diet, and on Day 3 they ate a high sugar diel
What is the independent variable in this experiment?
A the age of the subjects
B the blood insulin level
C the type of food consumed
D the time of day the meal was consumed
Answers
The independent variable in this experiment is "the type of food consumed."Explanation:An independent variable is the variable that is being changed, manipulated or controlled by the researcher.
It's a variable that causes or influences the dependent variable. The dependent variable is the variable that is being observed, measured or tested and is affected by the independent variable. In this experiment, the independent variable is the "type of food consumed" while the dependent variable is "blood insulin level."The researcher in the experiment designed an investigation to test the effect of eating different types of food on blood insulin levels. The experiment involved ten male subjects, who were all in good health and 25 years of age.
The meal that the subjects ate on each day consisted of only one type of food, and their blood insulin levels were measured after consuming the meal.The independent variable is "the type of food consumed" while the dependent variable is "blood insulin level." The independent variable, type of food consumed, is changed and manipulated while the dependent variable, blood insulin level, is observed and measured.
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What is an ecological community?
Responses
!.small groups of the same species that live in an area and can breed with each othersmall groups of the same species that live in an area and can breed with each other
2.a group of different species of organisms that live in an area and interact with each othera group of different species of organisms that live in an area and interact with each other
3.members of a species that live in an area and can breed with each othermembers of a species that live in an area and can breed with each other
4. a group of different organisms that live in an area and do not interact with each other
Answers
Communities are all the individuals from different species that coexist and interact. Option 2. a group of different species of organisms that live in an area and interact with each other
What is a community?
A community might be defined as a group of organisms from different species that coexist in a certain time and space, and interact with each other. It can be defined at different scales.
Inter-specific interactions can cause changes in the populations' sizes. These could be the cases of competition, predation, parasitism, mutualism, and etcetera.
Option 2. a group of different species of organisms that live in an area and interact with each other
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Round 0.2897 to the tenths
place.
Answers
0.3
Explanation: The tenths place is the first number after the decimal. The number to the right of this number determines how it will be rounded. If the number to the left of the tenths place is equal to or greater than five, it will round up, meaning in this case, the tenths place will be replaced by a 3. If it is less than 5, it will round down.
What are somw factors that will affect how well enzyme works
Answers
Answer:
Enzyme activity can be affected by a variety of factors, such as temperature, pH, and concentration. Enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate
Explanation:
You read two conflicting stories about virus outbreak on the internet. To determine which story is
more valid you should compare what between the two websites?
Which story sounds more exciting.
Authors, publishers, dates, and whether the story cites sources.
How many shares the story got on social media.
O Which story comes from a popular website.
all of these are correct
Answers
Which of the following statements is true? *
A person with Type A blood has anti-B antigens and type A antibodies.
A person with Type AB blood makes both anti-A antibodies and anti-B antibodies.
Any person can get a fresh supply of antibodies from eating a healthy, organic diet.
Antibodies are transferred from mother to child at birth and through breastmilk to nursing infants.
Answers
antibodies are transfered from mother to child at birth and through breast milk to nursing infants
a person with type A blood has type A antigens and anti B antibodies, a person with type AB blood has both type A and B antigens and no antibodies and also, we don't get fresh supply of antibodies from organic and healthy diet but those diets rather help improve our immunity.
so this makes the last point the correct option because breastmilk contains antibodies to improve the immune system if the infant and also there is transfer of antibodies between the infant and the mother through the umbilical cord.
as a result of cirrhosis, the cirrhotic liver is not capable of inactivating estrogen; thus the male develops feminizing effects that include: group of answer choices spider angiomas. gynecomastia. testicular atrophy. all of the above.
Answers
As a result of cirrhosis, the cirrhotic liver is not capable of inactivating estrogen; thus the male develops feminizing effects that includes spider angiomas. gynecomastia. testicular atrophy.
Option D is correct.
In cirrhosis, which is a chronic liver disease characterized by scarring and damage to the liver tissue, the liver is not capable of inactivating estrogen effectively. This can lead to an accumulation of estrogen in the body, which can cause a variety of feminizing effects in males.
Spider angiomas, which are small blood vessels on the skin that have a central red spot surrounded by smaller blood vessels, can be one of the symptoms of increased estrogen levels. Gynecomastia, which is the development of breast tissue in males, can also occur due to excess estrogen. Finally, testicular atrophy, or shrinking of the testicles, is another common effect of increased levels of estrogen in males with cirrhosis.
Hence, the correct option is D.
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A population of beetles is currently 60 beetles at n=0. The beetle population has an intrinsic growth rate of 150% each generation. The environment can sustain a maximum population of 130 beetles. Find the population of the next three generations, 'y_1' ' 'y_2' and 'y_3' of beetles
Answers
The population of beetles in the next three generations, considering the carrying capacity, is y1 = 130 beetles, y2 = 130 beetles, and y3 = 130 beetles.
The population of beetles can be calculated using the formula: y = y0 * (1 + r)^n, where y is the population at a given generation, y0 is the initial population, r is the intrinsic growth rate (expressed as a decimal), and n is the number of generations.
Given that the initial population (y0) is 60 beetles and the intrinsic growth rate (r) is 150% (or 1.5), we can calculate the population for the next three generations.
For the first generation (y1), we substitute y0 = 60, r = 1.5, and n = 1 into the formula: y1 = 60 * (1 + 1.5)^1 = 60 * 2.5 = 150 beetles.
For the second generation (y2), we substitute y0 = 60, r = 1.5, and n = 2 into the formula: y2 = 60 * (1 + 1.5)^2 = 60 * 6.25 = 375 beetles.
For the third generation (y3), we substitute y0 = 60, r = 1.5, and n = 3 into the formula: y3 = 60 * (1 + 1.5)^3 = 60 * 15.625 = 937.5 beetles.
However, since the environment can only sustain a maximum population of 130 beetles, we need to consider the carrying capacity.
To find the population at each generation while considering the carrying capacity, we compare the calculated population with the carrying capacity and use the smaller value as the population.
For y1, the population is 150 beetles, which exceeds the carrying capacity of 130 beetles. Therefore, y1 = 130 beetles.
For y2, the calculated population is 375 beetles, which is also above the carrying capacity. Thus, y2 = 130 beetles.
For y3, the calculated population is 937.5 beetles, which is still above the carrying capacity. Therefore, y3 = 130 beetles.
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Is it possible for two tall pea plants to produce a short pea plant variety? Explain. (1 point)
O No, two tall plants will only produce tall offspring.
O Yes, it is possible for plants to produce offspring with traits different from their own.
O No, one parent must be a short plant for any of the offspring to be short.
O Yes, the offspring of two tall plants are always short.
Answers
Answer:
Its yes, is is possible for plants to produce offspring with traits different from there own :)
Explanation:
because no other answer makes senceYes, it is possible for two tall pea plants to produce a short pea plant variety because they have the capability to produce offspring with traits different from their own. Thus, the correct option for this question is B.
What are Traits?Traits may be defined as the process of morphology or physiology which comes due to a combination of alleles. The expression of genotypes in the form of traits governs the phenotypes in an individual.
According to the question, if two tall pea plants that have genotypes Tt were crossed together, they produce offspring with the genotypes TT, Tt, Tt, and tt. Out of them, 75% are tall plants, while the rest 25% (tt) are short or dwarf pea plants.
Therefore, it is definitely possible to produce a short pea plant variety with the help of two tall pea plants. Thus, the correct option for this question is B.
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which of the following best predicts the impact on the lizard species if there is a gradual increase in the average temperatures found in both the lowlands and mountains in this region? responses some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation. some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation.
Answers
The correct response is:
"Some lizards will migrate to new habitats in the mountains and become isolated, leading to allopatric speciation."
What is Allotrophs?
Allopatric speciation occurs when populations of a species become physically separated by a geographical barrier, such as a mountain range, river, or other natural barrier. This physical separation prevents gene flow between the populations, allowing them to evolve independently over time. As a result of different environmental conditions and genetic changes.
This is the best prediction because a gradual increase in average temperatures in both the lowlands and mountains in a region would likely result in changes to the habitats and environments of lizard species.
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[30 POINTS!]
————————————————
Which organism is most closely related to sac fungi based on the phylogenetic tree?
[A]. Bread molds
[B]. Club fungi
[C]. Chytrids
[D]. Mycorrhizal fungi
———————————-
Answers
Matt use a camera to take a picture of a rose on a piece of paper in the picture the rose appear to be bright red and the background appear to be white then Matt place a blue glass filter over the camera lens and took another picture in this picture of the Rose appear to be black in the background appear to be blue explain what happens to light waves to make the appearance of the rules in the appearance of the background different in the two pictures.
Answers
The blue glass filter absorbed most of the red light waves and allowed only the blue light waves to pass through, resulting in the appearance of the rose and the background being different in the two pictures.
What is Light?
Light is a form of electromagnetic radiation that is visible to the human eye. It is a type of energy that travels in straight lines and has both wave-like and particle-like properties. Light is a fundamental part of our world and plays a crucial role in our lives.
Light is produced by the motion of charged particles, such as electrons, and can be emitted by sources such as the sun, light bulbs, and fires. Light travels at a constant speed of approximately 299,792,458 meters per second in a vacuum, which is known as the speed of light.
When Matt took the first picture of the rose on a piece of paper without any filter, the camera captured the visible light waves that were reflected by the rose and the background. The rose appeared bright red because it reflects mostly red light waves and absorbs other colors, and the background appeared white because it reflects all the visible light waves equally.
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40 points easy 1 question!!!!
Which statement is true about the base-pairing rules for DNA?
Responses
G always pairs with C.
C always pairs with T.
U always pairs with G.
Answers
Answer: G always pairs with C.
Explanation:
What diagram demonstrates how crossing-over contributes to genetic variety during meiosis?
Answers
Answer:c
Explanation:trust me
The diagram that demonstrates how crossing-over contributes to genetic variety during meiosis is diagram C.
Crossing over refers to the recombination or interchange of genetic material. This process (crossing over) occurs between non-sister chromatids during meiosis.Crossing over specifically occurs in the prophase I of meiosis.In conclusion, the diagram that demonstrates how crossing-over contributes to genetic variety during meiosis is diagram C.
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QUICK I NEED HELP, ITS A TEST!!!
There are four types of tissue in the human body
True or false
Answers
Answer:
Yes there are four types of tissues: connective, epithelial, muscle, and nervous tissues.
Hope this helped, good luck on your test!
-omii♡
PLZ HELP!! so i THINK the answer is Proline-Threonine, but i want to be sure its correct. The picture for the question is below! ;)
Answers
Answer:
Well im also not sure but I think it is Proline-Threonine
Explanation:
Can you pls comment the question i cant rlly see it when i see it clearly i might be able to give you the correct ans
Cells have genes that affect cell division. These genes may be damaged by
environmental factors such as radiation, smoking, and viral infections. Oncogenes
stimulate rapid cell division and are normally turned off in adult organisms. Tumor
suppressor genes prevent continuous cell division and are normally turned on in
adult organisms. One of these tumor suppressor genes, called p53, can be turned off
by the effects of smoking tobacco. Based on the above information, what is the most likely result of turning off p53?
A Lungs become black from smoking
B Cells undergo uncontrolled division
C White blood cells are unable to stop infections
D. DNA chains are broken and form more chromosomes
Answers
Answer:
B.
Explanation:
A tumor is essentially when damaged cells continue multiplying. So by smoking your risking both damaging your cells and turning of the p53 gene.
can i have brainliest?
The most likely result of turning off p53 is cells undergo uncontrolled division. Hence option B is correct.
What are genes?Genes are defined as the fundamental genetic component transferred from parent to child. Genes are composed of DNA sequences and are organized sequentially at specified sites on chromosomes in the cell nucleus. The foundation of the body is made up of cells. Your body is made up of billions of interconnected cells in every part. Chromosomes are the units on which genes are organized.
Diseases like cancer can result from an alteration in the cell cycle's regular regulation. When the cell cycle is out of balance, cells have the potential to randomly divide and accumulate genetic errors that can cause a malignant tumor.
Thus, the most likely result of turning off p53 is cells undergo uncontrolled division. Hence option B is correct.
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Mack's guatar fabrication shop producns low cost, highly durable guatars for beginners. Typicaly, out of the 100 gutars that begin productioh each monthy only 78 percent are considered good enous to sell. The other 22. percent are scrapped due to qually problems that are lidentfed after they have completed the production process. Each gular sels for $240. Becaute some of the production pecoss is automaled, esch gutar only requites 8 labor hours. Each enployee works an averoge of 160 hours per month. Labor is pald at 39 per hour, materials coat is $39 per gutay, and overtiest is $4.200. a. The labor productily rato for Mack's guitar Labrication shop is 5 per hour. (Enter your response rounded to fap decimal places.) b. Ahar some shady, the operation manager Darren Funk recommends 3 optons to improve the conpany's mulfasko productily. * Option ti increase the sales price by 15 percent - Option 2: impeove qualy so that eny 15 percent are sefective, er > Opton 3 reduce labor, materials, and overthead costs by 15 percont Finter your respone nounded to tak decimal places)
Answers
a. The labor productivity ratio for Mack's guitar fabrication shop is approximately 0.5 guitars per hour. b. The new sales price per guitar would be $276, the new percentage of guitars considered good enough to sell would be 85% and the new costs per guitar would be $ 33.15.
a) In order to calculate the labor productivity ratio,
Labor Productivity Ratio = Number of Guitars Produced / Total Labor Hours
Labor Productivity Ratio = 78 guitars / (160 hours/employee)
Labor Productivity Ratio = 0.4875 guitars per hour
Rounding to one decimal place, the labor productivity ratio for Mack's guitar fabrication shop is approximately 0.5 guitars per hour.
b) Option 1: Increasing the sales price by 15%:
The new sales price per guitar would be $240 + (15% of $240) = $276.
Option 2: Improving quality so that only 15% are defective:
The new percentage of guitars considered good enough to sell would be 100% - 15% = 85%.
Option 3: Reducing labor, materials, and overhead costs by 15%:
The new costs per guitar would be $39 - (15% of $39) = $33.15.
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Detail Internal and external respiration
Answers
Internal respiration refers to the exchange of gases (oxygen and carbon dioxide) between cells and tissues within an organism. External respiration refers to the exchange of gases between the organism and its environment, typically occurring in the lungs or gills.
Internal and external respiration are two processes involved in the exchange of gases, particularly oxygen and carbon dioxide, within living organisms. Here is a step-by-step explanation of each process:
Internal Respiration:
Internal respiration occurs at the cellular level within the body's tissues.Oxygen from the bloodstream diffuses into the cells, where it is used in cellular respiration to produce energy.During cellular respiration, carbon dioxide, a waste product, is produced.Carbon dioxide then diffuses out of the cells into the bloodstream.The carbon dioxide is carried by the bloodstream back to the lungs or gills for elimination from the body.External Respiration:
External respiration takes place in specialized organs such as the lungs in mammals or gills in aquatic organisms.Oxygen from the surrounding air or water is taken in through inhalation or through the gills.The oxygen is transported into the bloodstream, where it binds to hemoglobin in red blood cells for distribution to the body's tissues.At the same time, carbon dioxide from the bloodstream is released into the air or water through exhalation or across the gills.This exchange of gases occurs due to the concentration gradient and the process of diffusion.Overall, internal respiration occurs at the cellular level, involving the exchange of gases between the cells and the bloodstream, while external respiration occurs in specialized organs, facilitating the exchange of gases between the organism and its environment.
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What process best explains how a nerve cell and a muscle cell can both
develop from the same fertilized egg?
O A. differentiation
O B. natural selection
O C. selective breeding
O D. genetic engineering
Need ASAP!
Answers
Answer:
Im pretty sure its A.
Explanation:
=just took the teskst
Answer: The correct answer is A. differentiation
Explanation: Confirmed correct.
8. Complete the diagram illustrating ionic bonds. Atom X gives one electron to each atom Y.
What are the ions that form as a result? Put the charges under each atom.
Atom Y
Atom X
Atom Y
Answers
The ions formed are;
X⁺ - a positive ionY⁻ - a negative ionWhat are ionic bonds?Ionic bonds are bond which are formed when electrons are transferred from one atom to another producing oppositely-charged ions which are held together by electrostatic forces of attraction.
In the formation of ionic bonds, the atom that donates one or more electrons forms a positive ion or cation while the atom that receives one electron or more becomes the negative ion or anion.
Considering the formation of ionic bonds between the atoms X and Y;
Atom X gives one electron to each atom Y, therefore, atom X acquires a charge of +1 while Y acquires a charge of -1.
The ions formed are;
X⁺ - a positive ionY⁻ - a negative ionIn conclusion, ionic bonds are formed during a transfer of electrons.
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