Which of these organisms does NOT produce an enterotoxin?
a. Shigella spp.
b. Clostridium botulinum.
c. Vibrio cholerae.
d. Staphylococcus aureus.

Answers

Answer 1

Answer:

b. Clostridium botulinum.

Explanation:

The enterotoxins (also know as exotoxins when they are produced by bacteria) are polypeptides secreted by microorganisms that target the intestine. These toxins may produce serious damage to the host by disrupting the function of the epithelial intestinal cells  Moreover, Clostridium botulinum is a Gram-positive bacterium that is able to produce a potent neurotoxin (botulinum) which is known to cause severe flaccid paralytic deformities in humans.

Answer 2

The organism that does NOT produce an enterotoxin among the options given is b) Clostridium botulinum. Clostridium botulinum is a bacterium known for producing botulinum toxin, which is a neurotoxin rather than an enterotoxin. It does not, however, create an enterotoxin.

The severe sickness known as botulism is brought on by the botulinum toxin, which predominantly affects the nervous system.

Although enterotoxins can induce diarrheal disorders and are linked to gastrointestinal symptoms, an organism need not produce an enterotoxin to be pathogenic. The host's sensitivity to infection and the infectious dosage are other important variables.

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Related Questions

Science question:
Explain the differences between crystal and crystallization

Answers


Hey Crystal is some thing that you will find crystallization is what you believe in

Each word describes the creatures in a tropical rainforests, except:
A. Numerous
B. Uniform
C. Biodiverse
D. Adapted

Answers

the answer is B. Uniform

Raccoons will eat almost anything. They are most accurately called O carnivores O producers O herbivores O omnivores​

Answers

Answer:

omnivores

Explanation:

Answer:

producers i belive

Explanation:



realized
Linnaeus's ?

Answers

Answer:I dont not understand this question sorry

Explanation:

Answer and Explanation:

All modern classification systems have their roots in the Linnaean classification system. The Linnaean system is based on similarities in obvious physical traits. From the kingdom to the species. Each species is given a unique two-word Latin name.

If this isn't what you were asking then, sorry. I didn't understand the question but I sorta recongnized the word, "Linnaeus" so I thought this was what you were talking about.

Bart has to babysit Maggie for several nights in a row during summer vacation and makes a bet with that Taylor Swift music will get Maggie to Bart gets out the CD collection and when Maggie cries the first night, he plays The second time he plays /DC and rocks out, but she doesn't stop crying. The third time he plays Taylor Swift. When he plays Taylor Swift, Maggie immediately and starts to smile. •What is the independent variable? •What is the hypothesis? •What is the dependent variable? •Milhouse says Bart needs to try to see what Maggie will do if he doenst play any music At all. What is this called?

Answers

Answer:

Independent variable: THE TYPE OF MUSIC PLAYED

Dependent variable: MAGGIE'S TEARS

Hypothesis: IF Taylor Swift's music is played, THEN Maggie will stop crying

Control group

Explanation:

The hypothesis of an experiment is a testable explanation given to possibly solve an observed problem. In this question, Maggie thinks Taylor Swift's music will get Maggie to stop crying, hence, one can hypothesize that: IF Taylor Swift's music is played, THEN Maggie will stop crying

Independent variable is the variable that the experimenter manipulates or changes in order to bring about an outcome. The independent variable in this experiment is the THE TYPE OF MUSIC PLAYED by Bart because it is what is changed.

Dependent variable is the variable that is being measured. It responds to the changes made to the independent variable. In this experiment, the dependent variable is MAGGIE'S TEARS.

Milhouse says Bart needs to try to see what Maggie will do if he doenst play any music At all, this is called the CONTROL GROUP because the control group of an experiment is the group that does not receive any experimental treatment i.e. the independent variable is not added.

1.increasing heart rate raised the blood delivery of the body
True or false

Answers

True
because ur hart pumps faster and then blood flow increases and the you have more blood delivery to your body

Can you help me with this please i will give you a branlist and it’s science

Answers

answer is A out of the choices

Answer:

C

Explanation:


A molecule in which one or more atoms or end is slightly negative and one or more is slightly
What word defines this
Hint: 13 letters
I WILL GIVE BRAINLY

Answers

The answer is Heteronuclear

oh its polar molecule

What does the nucleus consist of

Answers

Answer:

If you are talking about atomic nucleus then it's consist of protons and neutrons.

Explanation:

But if you're talking about cell nucleus

Then,

It contains nuclear envelope, nuclear lamina, nucleolus, chromosomes, nucleoplasm .

Answer:

Protons and neurons.

Explanation:

The atomic nucleus consists of Protons and neurons

Which of the following is a synonym (word with a
similar definition) for the word degradation, used
in line 8 of the passage?
a. health
b. ruin
c. gradation
d. evaluation

Answers

Answer:  B   ruin

Explanation: Because i looked it up on QUIZLET !

To be characterized as a chordate, an organism must:________.
A) possess a backbone in both the larval and adult stages
B) display all four key characteristics of Chordata in both the larval and adult stages
C) display each of the four key characteristics of the chordates at some point in the life cycle
D) possess a backbone in at least one life stage.

Answers

Answer:

C) display each of the four key characteristics of the chordates at some point in the life cycle

Explanation:

To be characterized as a chordate, an organism must display each of the four key characteristics of the chordates at some point in the life cycle. Therefore, the correct option is C.

To be characterized as a chordate, an organism must display four key characteristics at some point in its life cycle.

These characteristics include having a notochord (a flexible rod-like structure), a dorsal hollow nerve cord, pharyngeal slits or pouches, and a tail.

It is not necessary for all four characteristics to be present simultaneously or in both the larval and adult stages. As long as the organism exhibits these characteristics at some stage of its life, it can be classified as a chordate.

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The functional connectivity is greatest for which pair of species?
Wood frogs and Spotted salamanders
O Black bears and wood frogs
O White-tailed deer and Pickerel frogs
O Spotted salamanders and Black bears
O Grizzly bears and White-tailed deer​

Answers

Answer:

White-tailed deer and Pickerel frogs

Explanation:

Q) What does it mean by put you down? please, answere me ​

Answers

Answer: to criticize someone

Explanation:

Answer:

make you give up on something

11- El Pirata Barba Plata ha llegado a la isla del Coral para buscar un
tesoro. En el mapa pone que, desde la orilla, debe recorrer 3,7 hm a la
pata coja hacia el centro de la isla, y después otros 8,5 dam dando
volteretas en la misma dirección. ¿Cuántos metros recorrerá en total
desde la orilla hasta el tesoro? * cuál es la repuesta ​

Answers

Answer:

El pirata recorrerá 455 metros

Explanation:

3,7 hectómetros (hm) = 370 metros (m)

8,5 decámetros (dam) = 85 metros (m)

>> Distancia en metros = 370 m + 85 m  = 455 metros

El hectómetro (hm) es una unidad de longitud que equivale a 100 metros, donde el prefijo hecto indica la equivalencia a 100 metros. Por su parte, el decámetro (dam) equivale a 10 metros, donde el prefijo deca indica la equivalencia a 10 metros.

Explain how the Hershey-Chase experiment used bacteriophages with radioactive sulfur and radioactive phosphorus to demonstrate that DNA, and not protein, is the carrier of genetic information.

Answers

Answer:

He separated the phages into radioactive sulfur-containing protein ghosts and radioactive phosphorus-containing DNA. They found that the radioactive sulfur protein ghosts could attach to bacterial membranes while the radioactive phosphorus DNA could not

Answer:

He separated the phages into radioactive sulfur-containing protein ghosts and radioactive phosphorus-containing DNA. They found that the radioactive sulfur protein ghosts could attach to bacterial membranes while the radioactive phosphorus DNA could not

Explanation:

You travel to Mars. You obtain a specimen that appears to have cells and responds to warm temperatures. Would this be classified as living or nonliving? living nonliving

Answers

I believe it might be living.

Answer:

LIVING

Explanation:

I took the test and got it right :)

Competition is central to the theory of natural selection. Why does competition occur?
View Available Hint(s)
females must choose among possible mates
males must defend their territories
organisms are naturally antagonistic
O organisms typically produce too many offspring and resources are limited
O all of the listed responses are correct

Answers

Answer:

Competition is central to the theory of natural selection. Why does competition occur? Organisms typically produce too many offspring, and resources are limited. All organisms, including prokaryotes and eukaryotes, use essentially the same genetic code.

Explanation:

All organisms, including prokaryotes and eukaryotes, use essentially the same genetic code.

What makes amino acids different from each other?
A) Amino group
B) Carboxyl group
C) Hydrogen atom
D) Side chain

Answers

D. The side chain (R group)

Pls need help the question is up there already giving BRAINLEST to a good answer

Answers

Answer:

The last choice. Think of planets, the bigger they are, the stronger they attract to one another

Explanation:

hope it helps

Which observations did Darwin make?
Select the three correct statements.
Each individual frequently and continuously uses the necessary organs.
Heritable variations exist in each population.
All organisms share similar features.
Each species seems suited for its particular environment.
)
A population has more individuals than can be supported by the environment.
The population size suits the resources of the environment.

Answers

Answer:

Heritable variations exist in each population.

Each species seems suited for its particular environment.

A population has more individuals than can be supported by the environment.

Explanation:

Answer:

each species

A population has more

Heritable variations

Explanation:

identify and label each part of the eukaryotic cell

Answers

heres your diagram with labeling

Eukaryotic cells are enclosed in the membrane, and the nucleus is bound by a nuclear membrane. Major parts of the eukaryotic animal cell are the nucleus, cytoplasm, mitochondria, Golgi, ER, etc.

What are animal cells?

Animal cells are eukaryotes that lack cell walls but have almost the same components as plant cells. The cytoplasm is the component of the cell where all the organelle lies.

The nucleus is the central organ that is involved in genetic replication and transcription and translation. Mitochondria are involved in the metabolic process and release of energy.

Golgi are involved in the packaging and transport of the proteins and ER produces proteins that are transported to the Golgi. Vacuoles though are present in small quantities they aid in the accumulation and elimination of the waste product.

Refer to the image attached below of the animal eukaryotic cell.

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How is tonicity affected by solutes?

Answers

Unlike osmotic pressure, tonicity is influenced only by solutes that cannot cross the membrane, as only these exert an effective osmotic pressure. Solutes able to freely cross the membrane do not affect tonicity because they will always equilibrate with equal concentrations on both sides of the membrane without net solvent movement.

What family is potassium

Answers

Answer:

s block

Explanation:

representative element family of metals

Which of the following is not a surface of the lungs?
a. Mediastinal surface
b. Cardiac surface
c. Costal surface

Answers

C. Costal surface.

Please please pleaseeee tell me if this is wrong.

it should be b sorry if i’m wrong .

How can the enzyme activity be slowed down?
A. Increase temperature from 10*C to 20*C
B. Increase temperature from 20*C to 30*C
C. Decrease the temperature from 30*C to 20*C

Answers

B. Increase temperature from 20*C to 30*C

PLEASE HELP WILL GIVE BRAINLY which sequence of base pairs complements the base pairs on the left side of the dna molecule?

Answers

Answer:

B

Explanation:

Adenine forms a pair with thymine

Cytosine forms a pair with guanine

5)
Which statement is an example of an inference that a student makes to determine that this is likely a plant cell?
A)
The cell is too small to be seen by the eye.
B).
The cell appears to have a nucleus and vacuoles.
Eliminate
The cell appears to have a large area of cytoplasm.
D)
The cell appears to be rectangular in shape and has a cell wall.

Answers

Answer:

D) the cell appears to be in a rectangular shape and has a cell wall

Explanation:

animal cells don't have cell walls

Which statement about ecological organization is correct?
O An organism is part of a community.
O A community is part of a population.
O An ecosystem is made up of organisms only
O Biosphere is a part of the ecosystem
Submit
Request Answer

Answers

Answer:

Biosphere is a part of the ecosystem

The correct statement about ecological organization is:

An organism is part of a community.

The levels of ecological organization are a hierarchy of categories that go from the micro to the macro (and vice versa), showing us different dimensions of analysis of living beings.

These levels are: organism, population, community, ecosystem, biosphere and biome.

The community is the level made up of a set of organisms of different species, which interact with each other in a specific area.

This includes life forms of all phyla: animals, plants, fungi, bacteria, etc. .

But in turn organisms interact, and these interactions can prevent some very similar species from coexisting (competitive exclusion principle), or the presence of a predator can cause two competitors to remain in low density and therefore there are no exclusion.

Therefore, we can conclude that the organisms of any species (plant or animal) are part of a community and that they coexist in a defined space (the biotope) that offers the external conditions necessary for their survival.

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Following massive damage to his frontal lobes, Phineas Gage was most strikingly debilitated by: auditory hallucinations. O memory loss. O speech loss. antisocial and aggressive behavior.​

Answers

Answer:

maybe he needs dietary fibre

Following massive damage to his frontal lobes, Phineas Gage was most strikingly debilitated by antisocial and aggressive behavior.​ The correct option is D.

What is the brain?

The brain is the most important part of the body. It controls and runs all functions of the body. It is walnut shaped and present in the head of the body. The brain is divided into two hemispheres. The left and the right hemisphere.

The brain is also divided into frontal and parietal lobes. The frontal lobe is present in the front section, and it controls social interaction, problem-solving, motor functions, etc.

So if the frontal lobe will be affected, the social behavior also gets affected and the person becomes irritable and aggressive.

Thus, the correct option is D, antisocial and aggressive behavior.​

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Use your knowledge of relationships in a food chain, describe how a cow gets the energy it needs to survive YOU MUST USE THE WORDS sunlight, photosynthesis, producer and consumer in your answer

Answers

Answer:

All energy on Earth originally comes from the Sun. Plants use sunlight in a process called photosynthesis, to make their own food and provide energy.  This is why plants are producers, because they make their own food. Cows eat plants, namely grass. So, when the cow eats the grass, the energy from the grass transfers to the cow. This is why cows are consumers, because instead of making their own food, cows, like humans, must consume their food to survive.

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