Define "CFU.” Why is this term used instead of simply using "cell count"?​

Answers

Answer 1
that are used to prevent the growth of specific microbes or it simply lacks be calibrated to a viable cell count to express microorganisms as CFU/ml, CFU stands for Colony Forming Units, a microbiology term used to quantify how unit-cfu-colony-forming-unit-cfu-ml-cfu-g-cell-count-microbial- counting.

Related Questions

The oxidation of a chemical occurs when

It loses electrons
It gains electrons
It shares electrons
All the above

Answers

Answer:

Oxidation occurs when an atom, molecule, or ion loses one or more electrons in a chemical reaction. When oxidation occurs, the oxidation state of the chemical species increases.

Explanation:

oxidation is loss of electrons

here a trick to remember this

oil rig -> oxidation is loss. reduction is gain

1. Indicate patient history details that are consistent with the patient having an infection. How do the patient’s signs and symptoms compare to a healthy individual?

2. Indicate what you suspect might be the etiological agent. What additional history would you like to have?


3. Based on the microbe you suspect is responsible for the symptoms, from which body sites would you recommend taking culture?




4. . Give culture and test characteristics of the microbe you suspect might be causing the disease. If you suspect more than one might be responsible, how might you distinguish the two?





5. Indicate virulence factors possessed by this microbe that might be responsible for the symptoms. Indicate how it produces the symptoms you observe in the patient.



6. Is this microbe normal microbiota at the culture site?




7. What type of treatment would be used for this patient

Answers

Answer:

All the answers are there in the photo

A white blood cell (WBC) encounters bacteria in a scrape on the knee of a child who has fallen off of his bicycle. The WBC’s job is to take the bacteria inside of itself and destroy the bacteria. If the bacteria cannot be moved across the WBC membrane, how will the WBC most likely take it in?

Answers

Answer:

The correct answer is - phagocytosis.

Explanation:

Phagocytosis is a type of endocytosis that also engulfs the solid material including microbial pathogens like bacteria and others. In immunity response macrophages, neutrophils and. immature dendritic cells are white blood cells that perform the phagocytosis process to kill the microbes and antigens.

Phagocytosis ingests and digest pathogens and develops an adaptive immune response an essential part of the innate immune system. WBC will most likely take it in through phagocytosis in the given case.

Plyometrics can help a person maintain cardiorespiratory fitness true or false

Answers

False
Explanation: Edge

Plz do 10 and 14❤️❤️❤️❤️ Urgently

Answers

Answer:

lol

Explanation:

Answer:

lol i cant see it

Explanation:

Which of the following could occur as the result of runoff of high nitrogen fertilizers from farmlands near a lake?
O an increase in algae growth resulting in low oxygen levels in the lake
O a decrease in mineral storage reducing carbon levels of the lake
O a decrease in pollution in lower ozone levels in the lake area
O an increase in deforestation reducing animal populations in the lake area

Answers

Answer: the first one an increase in aldae

Explanation:

Black-footed ferrets are native to the Great Plains. They spend most of their
time underground in prairie dog burrows. Which factor would increase an
area's carrying capacity for black-footed ferrets?
A. Increased competition for space
B. Increased number of diseases
C. Increased number of predators
D. Increased availability of food

Answers

Answer:

D. Increased availability of food

Explanation:

Trust

The factor that would increase an area's carrying capacity for black-footed ferrets is the increased availability of food. The correct option is D.

What is carrying capacity?

Carrying capacity is defined as the average population size of a species in a given habitat.

Environmental factors such as adequate food, shelter, water, and mates limit the species population size. If these requirements are not met, the population will decline until the resources recover.

If there is more food available in an area, more black-footed ferrets can survive and reproduce, increasing the species' carrying capacity.

Increased competition for space, more diseases, and more predators would all reduce the carrying capacity of black-footed ferrets by reducing the number of individuals that could survive and reproduce in the area.

Thus, the correct option is D.

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g Two linked genes, (A) and (B), are separated by 18 centiMorgans. A man with genotype Aa Bb marries a woman who is aa bb. The man's father was AA BB. What is the probability that their first child will both be ab/ab

Answers

Answer:

The probability that their first child will both be ab/ab = 41%.

Explanation:

Available data:

Two linked genes  (A) and (B) ⇒ 18 centiMorgans apartMan ⇒  Aa BbMan´s father ⇒ AA BBWoman ⇒ aabb

The recombination frequency is given by the distance between genes. We have to know that 1% of recombinations = 1 map unit = 1cm.

Recombination frequency = 0.18

Man: AaBb

Gametes) AB Parental

                 ab Parental

                 Ab Recombinant

                 aB recombinant

18 centi morgan = 18 % of recombination in total  

                            = % aB + % Ab  

                            = 9% aB + 9% Ab

       100% - 18% = 82% of parental in total  

                           = % of AB + % ab  

                           = 41% AB + 41% ab

The frequency for each gamete is:

AB 41%

ab 41%

Ab 9%

aB 9%

Cross: man x woman

Parental)          AaBb           x          aabb

Gametes) AB, Ab, aB, ab        ab, ab, ab, ab

Punnett square)     AB ( 41%)       Ab (9%)      aB (9%)       ab (41%)

                   ab      AaBb               Aabb          aaBb            aabb

                   ab      AaBb               Aabb          aaBb            aabb

                   ab      AaBb               Aabb          aaBb            aabb

                   ab      AaBb               Aabb          aaBb            aabb

F1) 41% of the progeny is expected to be AaBb

     9% of the progeny is expected to be Aabb

     9% of the progeny is expected to be aaBb

     41% of the progeny is expected to be aabb

what type of food is made during photosynthesis

Answers

Answer:

glucose

Explanation:

Plants, unlike animals, can make their own food. They do this using a process called photosynthesis . During photosynthesis, plants produce glucose from simple inorganic molecules - carbon dioxide and water - using light

(bbc)

glucose
Plants, unlike animals, can make their own food. They do this using a process called photosynthesis . During photosynthesis, plants produce glucose from simple inorganic molecules - carbon dioxide and water - using light.

Calculate: Punnett squares can be used to predict probable outcomes of genetic crosses. To calculate probability, divide the number of one kind of possible outcome by the total number of all possible outcomes. For example, if you toss a coin, the chance it will land on heads is equal to 1 ÷ 2. This probability can be expressed as ½, 0.5, or 50%.

How many total possible outcomes are there?
---------------------------------------------------------------------------------
Complete the table below to show the number of outcomes and the probabilities in both fractions and percentages.

I I
Number of Outcomes I Fraction I Percentage
--------------------------------------------------------------------------------------
FR FR
--------------------------------------------------------------------------------------
FW FW
--------------------------------------------------------------------------------------
FR FW
--------------------------------------------------------------------------------------

Answers

I think it’s

FR FR: 3 outcomes; 1/4, 2/4, 1/4; 25%, 50%, 25%

FW FW: 3 outcomes; 1/4, 2/4, 1/4; 25%, 50%, 25%

FR FW: 4 outcomes; 1/4, 1/4, 1/4, 1/4; 25%, 25%, 25%, 25%

Is there anything we as a society can do to prevent these pandemic from occurring

Answers

The only thing you can do now is to try do the necessary pre-causion, which are;

Always wear maskAlways be sanitizedAlways wear hand glovesKeep social distancing

One of the 7th graders in our school believes that absolute zero is possible on very cold days when it is snowing outside. Is he correct?​

Answers

Answer: It depends on where u live it can go to the negatives and could be at 0 at some point

Explanation:

Which event triggers the start of black hole formation?

Answers

Answer:

A stellar-mass black hole forms when a star with more than 20 solar masses exhausts the nuclear fuel in its core and collapses under its own weight. The collapse triggers a supernova explosion that blows off the star's outer layers.

Explanation:

Answer:

1. The universe's galaxies have evolved since what point in time?

2. Which proportion of the universe's galaxies can be seen from Earth?

3. Which was used to create the first image of a black hole?

4. Which of these describes a nebula?

5. Why are most stars not destroyed in a galaxy collision?

6. What do supernova remnant and planetary nebulae have in common? Select the three correct answers.

7. Which of the following is an accurate description of cosmic microwave background (CMB) radiation? Select the two correct answers.

8. Select the correct answers from the list.

The model of galaxy formation in which sections of gas clouds collapse into small pieces which repeatedly combine into larger pieces under the influence of gravity is called the ____ model or the ____ model.

9. Drag and drop the words into the correct locations. Answers may be used once, more than once, or not at all.

Galaxies can be grouped by the age of the stars they tend to contain, with ____ galaxies having the youngest stars and ____ galaxies having the oldest stars.

10. Which event triggers the start of black hole formation?

Explanation:

1. 13.8 billion years ago, right after the universe first formed

2. far less than 1 percent

3. radio waves from matter at the edge of the black hole

4. cloud of gas and dust

5. Galaxies are mostly empty space.

6. They emit non-visible radiation.

They are composed of matter from dying stars.

They contribute matter to interstellar space.

7. CMB is uniformly distributed and of a uniform temperature across the universe.

CMB is remnant radiation from the Big Bang.

8. inside-out / bottom-up

9. irregular / elliptical

10. A massive star depletes its stores of hydrogen and helium

explain how thermal pollution can impact on the quality of water biodiversity​

Answers

Answer: Biodiversity can be decreased as a result. High temperature limits oxygen dispersion into deeper waters, contributing to anaerobic conditions. This can lead to increased bacteria levels when there is ample food supply. Many aquatic species will fail to reproduce at elevated temperatures. I hope this helps :)
The primary effects of thermal pollution are direct thermal shock , changes in dissolved oxygen, and the redistribution of organisms in the local community. ... Cold water contains more oxygen than hot water so increases in temperature also decrease the oxygen-carrying capacity of water.

During a storm, heavy rain ___________ a large rock into smaller pieces and then those pieces are __________ downstream from one place to another. *

erodes / weather
deposits / eroded
weathered / eroded
discharges / deposits

Answers

Answer:

1) erodes

2)deposits

Explanation:

During receiving of a food order, you notice a bag of rice with signs that the bag has been wet. What do you do?

Answers

Answer:

Dispose of the bag and check other bags in storage.

Explanation:

Dispose of the bag and check other bags in storage because in the food handlers book or something like that, it ca possible cause problems to the rice

Which statement correctly compares mass and weight?
A.Both depend on the force of gravity pulling on an object B.The basic unit of both is the kilogram C.Both mass and weight ofan object would be less on the moon than on Earth D.Weight varies with location, but mass does not vary

Answers

Answer:

D. Weight varies with location, but mass does not vary

Explanation:

Weight can be defined as the force acting on a body or an object as a result of gravity.

Mathematically, the weight of an object is given by the formula;

[tex] Weight = mg [/tex]

Where;

m is the mass of the object.g is the acceleration due to gravity.

Mass can be defined as a measure of the amount of matter an object or a body comprises of. The standard unit of measurement of the mass of an object or a body is kilograms.

Irrespective of the location of an object or a body at a given moment in time, the mass (amount of matter that they're made up of) is constant. This ultimately implies that, whether you're in the moon, space, earth or any other place, your mass remains the same (constant).

Hence, the statement that correctly compares mass and weight is that, weight varies with location, but mass does not vary. This is simply because acceleration due to gravity changes with location i.e its value varies with the planets.

Amino acids join together to create:
A.nucleic acids
B. carbohydrates
C. lipids
D. proteins

Answers

It should be D if not I’m sorry but im pretty sure

Neuvon Time to Recieve
Hand free phone
making a call tim (27 min)​

Answers

Answer:

Okay... Ig

Explanation:

Shondra takes notes in class.
Three entries in Shondra's notes are not in the right
place. What can Shondra do to correct her notes?
1. Energy
A Definition - the energy of moving objects
B. Main categories of energy
1. Kinetic - the ability to do work
2 Potential - the energy stored in objects
3. Chemical -- the energy in chemical bonds
C. Forms of energy
1. Gravitational - the energy of a rock on a hill
2 Elastic - the energy in a spring
3. Nuclear - the energy in the nuclei of atoms
4. Electromagnetic wave - the energy from the Sun
5. Electrical - the energy of flowing electrical charges
O Switch "the energy of moving objects" and "the
ability to do work" and place chemical energy under
"Forms of energy."
O Switch "the energy of flowing electrical charges" and
"the energy in a spring" and place kinetic energy
under "Forms of energy."
O Switch "the energy in the nuclei of atoms" and "the
energy stored in objects" and place nuclear energy
under "Main categories of energy."
O Switch "the energy from the Sun" and "the energy of
a rock on a hill" and place electrical energy under
"Main categories of energy."
Mark this and return
Save and Exit
Next
Submit

Answers

Answer:

I beileve its A because energy is what gives the ability to do work

Explanation:

Answer:

A

Explanation:

please have a great day.

adaptations of the benthic invertebrates​

Answers

Benthic invertebrates have adapted to the water pressure and also the food sources as it becomes more rural on the ocean floor.

Based on Darwin's ideas of descent with modification and natural selection, which observation would best support the idea that
increased competition causes changes in a species?

A) A population of frogs develop greener skin after a hurricane blows away the white flowers in the environment

B) A population of artic foxes develop a brown fur color as warmer temperatures reduce the number of days of
snowfall in the area

C) A population of rattlesnake goes extinct as the water resources in their environment dry up during an
extreme, prolonged drought

D) A population of deer show an increase in antler size over time, which allows them to obtain more mates
during mating season

Answers

Answer:

D) A population of deer show an increase in antler size over time, which allows them to obtain more mates during mating season

Based on Darwin's ideas, a population of deer show an increase in antler size over time, which allows them to obtain more mates during mating season (Option D).

What is evolution?

According to Darwin, evolution can be defined as descendence with modification, which mainly occurs via natural selection.

Natural selection can be defined as the differential survival and reproduction of the fittest organisms.

In this case, intraspecific competition favors deers more adapted to reproduce in the population.

In conclusion, based on Darwin's ideas, a population of deer show an increase in antler size over time, which allows them to obtain more mates during mating season (Option D).

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You observe every fall that the trees in the forest lose their leaves, but by the following fall, the leaves have disappeared. The most accurate explanation for this observation would be:

Answers

The tree produces a layer called abscission layer, in which nutrients and water are prevented from reaching the tree which stops the leaves from growing

The tree creates a layer known as the abscission layer, which prevents nutrients and water from reaching the tree and inhibits the growth of the leaves. Hormones in the trees cause the process of abscission.

What is abscission layer?

Tiny tubules in the abscission layer are responsible for carrying carbohydrates back into the tree and delivering water to the leaf, flower, or fruit.

The amount of nutrients and water that pass through the tubes is decreased in the autumn because cells in the abscission start to expand and exude a waxy substance.

Abscission of leaves, which takes place in the fall, is the natural loss of an old leaf at the base of the petiole. Many physical and biochemical changes occur during leaf abscission, most of which are controlled by plant hormones.

Therefore, every fall that the trees in the forest lose their leaves.

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The sun is a natural resource used by people. Why is the sun considered a renewable resource? *

the sun goes away at night and then comes back in the morning
on cloudy days, the sun cannot be used
solar energy from the sun is limited
the sun is an unlimited source of energy that isn't used up as fast as people use it

Answers

Answer:

Because the earth continuously receives solar energy from the sun, it is considered a renewable resource.

Explanation:



A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type
of limiting factor causes this?
density dependent
density independent
population dependent
population independent

Answers

Answer:

B. DENSITY INDEPENDENT

Explanation:

Density independent is a limiting factor. It affect birth and death rates of organisms through abiotic and environmental factors. A forest fire is one of the environmental factors that affects the density of a species in a given location.

The picture shows a carafe of olive oil.
What is one of the primary functions of this food in the body?

a.) building proteins
b.) storing energy
c.) providing structure to cell walls
d.) carrying genetic information ​

Answers

Answer:

it builds protein and stores energy

B. Storing energy

Good luck I hope this helped!

the following are examples of somatic cells, except?

Answers

Answer:

The only cells that aren't considered somatic cells in the body is the reproductive cells.

The answer is not reproductive cells

Biology
what is carbohydrates

Answers

Answer:

Simple carbohydrates are broken down quickly by the body to be used as energy. Simple carbohydrates are found naturally in foods such as fruits, milk, and milk products. They are also found in processed and refined sugars such as candy, table sugar, syrups, and soft drinks.

I really need help on this one.

One example of an effector involved in regulating increased body temperature in a
person is the smooth muscle in peripheral blood vessels.

b. Explain how this effector brings about a decrease in body temperature.

Answers

It b bryheshhbhdzji wait status jfkduftsf hdigigh

Answer:

hh

Explanation:

ne example of an effector involved in regulating increased body temperature in a

person is the smooth muscle in peripheral blood vessels.

Which is NOT a passive transport mechanism across the membrane of a plant cell?


Which is NOT a passive transport mechanism across the membrane of a plant cell?

Facilitated diffusion
Diffusion
Osmosis
Receptor-mediated endocytosis

Answers

Answer:

the company has also announced plans

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Find the largest possible rectangular area you can enclose, assuming you have 128 meters of fencing. What is the (geometric) significance of the dimensions of this largest possible enclosure? Explain the general distribution of life in aquatic systems as a function of chemistry, geography, light, depth, salinity, and temperature. Help me please! Its timed if sin (A+B)=1 and tan (A-B)=1/sqroot 3 are acute angles. find out the value of A and B A - y = -2x + 40B - y = 2x + 40C y = 1/2x + 40D - y=-1/2x +40 h(x)=6/(x-3), find h(5) consider the equation k over x equals 12 where k is any number between 20 and 65 and X is a positive integer what are the possible values for x Mike roller skates with a constant speed of 10 miles per hour. How long will he take to travel a distance of 15 miles. An insurance company offers personal property insurance.Jewelry is a special type of personal property. Jewelry coverage requires that the user managing the request is trained to appraise jewelry. Assignments for jewelry appraisals must go toskilled users. Which routing approach would you use?A. Route requests to a decision table that routes the request to a work group in a location where there are users who have appraisal skills.B. Route directly to users who are members of a work group that uses skill rating parameters.C. Route requests to a reporting manager who assigns the request to a user to ensure fast processing.D. Route requests to a work group whose members have the skill rating parameters. Answer:5.The sum of three consecutive odd numbers is equal to thirteen more than twotimes the largest number. Let the first odd number be'n'.(a)Write the equation of the problemAnswer:(1 mark)(b)Solve for'n' to find the first numberAnswer:(1 mark)(C)What are the values of the second and third odd numbers?Answer:(1 mark)(d)Show that the equation is true.Answer: Given the balanced reaction: Zn + 2HCl H2 + ZnCl2If 5 grams of each reactant are available for the reaction and HCl is knownto be the limiting reactant, which of the following is correct?O Both reactants will be completely used up.O There will be excess of both reactants remaining.O HCl will be completely used up while Zn will remain in excess.O Zn will be completely used up while HCl will remain in excess. What kind of moderator is Chairman Reed? Effective. Chairman Reed is reminding participants of the rules for discussion, acknowledging Mr. Hollembeak's point of view, and asking him to support his point of view with facts. Effective Chairman Reed is keeping the discussion on topic by preventing other board members from participating and by challenging Mr. Hollembeak's claim by demanding proof. Ineffective. Chairman Reed is not following the rules for discussion that he lays out in his opening statement, and he is not properly staying on topic. Ineffective. Chairman Reed is not allowing the other board members to share their points of view, and he is not following the discussion rules. The table below shows two types of electromagnetic waves and three random applications of electromagnetic waves.Type of Wave Applications of WavesGamma rays 1. Used in spectrometers to measure elements on the surface of celestial bodiesRadio waves 2. Used to measure gravity fields3. Detect the heat released by astronomical objectsWhich of these best matches the waves with their applications? Gamma rays2 and radio waves3 Gamma rays3 and radio waves2 Gamma rays2 and radio waves1 Gamma rays1 and radio waves2 do themath!Wavelength FrequencySpeedMedium200 Hz1500 m/sThe table shows measurements ofsome properties of a sound wave inwater and in air.Water400 Hz3.75 mWater343 m/sAir (20C)10 mCalculate Using what you knowabout the relationship betweenwavelength, frequency, and speed,fill in the table.17.15 Hz343 m/sAir (20C)1aCHALLENGE What can this tabletellyou about the speed of a wave? The president of a small companymade $72,000 last year. She cut hersalary this year to $60,000 becausethe company was not doing as well.What was the percent decrease in her salary to the nearest percent? Magali exerts a force of 4.5 N to slide her Blackberry across the table (so she can hide it from Hina!). If she does 2.7 J of work in the process, how far has the Blackberry moved? Conjugate at least 2 of these verbs with on: danser, jouer, couter. Possible additional words to use: des musiciens, les rues, les places Express the ratio below in its simplest form. 1.5 : 1 Solve the following equation for x. 18 4.x = 10 - 2xA x = -4B) x = -1C) x = 1D) x =4 what was this period of time called