Which of the following statements are part of Koch’s Postulates? Check all that apply.

A - The disease-causing microorganism must be present in at least half of the cases of disease.

B -The microorganism can be isolated and grown in a pure culture.

C - The microorganism from the pure culture will cause the disease in at least 80% of healthy organisms.

D - A re-isolated microorganism may evolve into a different species than the original.

Answers

Answer 1

Answer:

B

Explanation:

'The microorganism can be isolated and grown in a pure culture', is the only correct answer.

Answer 2

The statement that a microorganism can be isolated and grown in a pure culture is a part of Koch’s Postulates.

What are microorganisms?

A microorganism, or microbe is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells.

The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from sixth century BC India. The scientific study of microorganisms began with their observation under the microscope in the 1670s by Anton van Leeuwenhoek. In the 1850s, Louis Pasteur found that microorganisms caused food spoilage, debunking the theory of spontaneous generation. In the 1880s, Robert Koch discovered that microorganisms caused the diseases tuberculosis, cholera, diphtheria, and anthrax.

Because microorganisms include most unicellular organisms from all three domains of life they can be extremely diverse. Two of the three domains, Archaea and Bacteria, only contain microorganisms.

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Related Questions

Answer this. First person to answer correctly wins some brainlyness!
What is the largest order in the Phylum Aves?

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Answer:

Passeriformes - Perching Birds 3

Explanation:

the vacuoles in plant cells are different from the vacuoles in animal cells because

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Answer:

Explanation:

The vacuole in a plant cell is differerent from vacuoles in an animal cell because an animal cell has multiple small vacuoles while a plant cell has one large central vacuole that mainly just stores water and nutrients.

how a diving board illustrates Newtons third law of motion

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Explanation:

Newton's third law states for every action there is an equal or opposite reaction. When jumping then landing down on the diving board, the downward force bends the board to which it then reverses that force pushing back making you go up.

How is the aftermath of the children’s Halloween prank an example of the novel’s themes of prejudice and false suspicion? Book Name To Kill a Moking Bird

Answers

The novel shows the example of prejudice and false suspicion after the children made a joke on Miss Tutti and Miss Frutti Barber.

In the novel a situation is presented in which the naughty and evil children enter the Barbers' living room and make a joke by taking all the furniture to hide them in a cellar.

Later, when the Barber sisters find out, they blame (without having seen who it was) Syrian fur sellers saying:

Miss Tutti was sure that the fur sellers who had passed through town two days ago had stolen her furniture.They were brown, she said. Syrians.

According to the above, the Barber sisters had prejudices and false suspicions against the Syrians because only on suspicion they accused them of the theft of their furniture, without them having committed this fact.

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Which of the following is an accurate description of a positive feedback loop? SC.912.E.7.7

A.
It is uncommon in nature and it makes systems stable.

B.
It is common in nature and it doesn’t change the stability of systems

C.
It is uncommon in nature and is usually caused by humans

D.
It is common in nature and it makes systems stable

Answers

Regulatory functions such as feedback loops are very common in nature and happen thousands of times every day within our bodies alone.

A feedback loop is one of the methods by which biological organisms regulate functions. Feedback loops are a self-regulatory means through which the output of a system is then used as the input. Feedback loops can be of two types:

Positive FeedbackNegative Feedback

A positive feedback loop is one in which the system is stimulated to increase the production of a product. For example, the low levels of an enzyme in the blood will cause the body to produce more of that enzyme in a positive feedback loop. A negative feedback loop is just the opposite, in which high levels will cause a decrease in production.

Feedback loops are a vital part of maintaining homeostasis and for the survival of all organisms. Therefore, we can conclude that option D is correct in stating that feedback loops are common in nature and make the system stable.

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Which of the following is NOT a polymer?
Nucleotide
Polysaccharide
Triglyceride
Polypeptide

Answers

Answer:

Nucleotide ( monomer )      

Explained Definition:    

The classes of biological molecules may be grouped into the types of polymers they form and the monomers that act as subunits: Lipids - polymers called diglycerides, triglycerides; monomers are glycerol and fatty acids

1. The monomers of DNA are called nucleotides. Nucleotides have three components: a base, a sugar (deoxyribose) and a phosphate residue. The four bases are adenine (A), cytosine (C), guanine (G) and thymine (T). The sugar and phosphate create a backbone down either side of the double helix.

2. Polysaccharides, also called glycans, are large polymers composed of hundreds of monosaccharide monomers. Unlike mono- and disaccharides, polysaccharides are not sweet and, in general, they are not soluble in water. Like disaccharides, the monomeric units of polysaccharides are linked together by glyosidic bonds.

3. Fatty acids form more complex lipid polymers called triglycerides, triacyclglycerols or triacyl glycerides when each single-bonded oxygen molecule bonds to a carbon that's part of a glycerol molecule. ... Triglycerides are also commonly found in foods, especially animal products

4.  polymers are known as polypeptides; monomers are amino acids. Nucleic Acids - polymers are DNA and RNA; monomers are nucleotides, which are in turn consist of a nitrogenous base, pentose sugar, and phosphate group

in the process of respiration, organisms use carbon-based molecules to make __ and carbon dioxide.

Answers

Answer:

The products of respiration are CO2, Water Vapour and Energy.

C6H1206 + O2 ➔ CO2 + H20 + Energy

In the process of respiration, organisms use carbon-based molecules to make energy and carbon dioxide.

What do you mean by Respiration?

Respiration may be defined as the process by which cells use oxygen to break down sugar and obtain energy.

The product of respiration depends on the condition where it is held. But the ultimate product that will definitely release is energy and carbon dioxide.

Therefore, In the process of respiration, organisms use carbon-based molecules to make energy and carbon dioxide.

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how many elements are in CH4how many elements are in CH4 ​

Answers

Answer:

Two.

Explanation:

Carbon and Hydrogen.

during which phase do the chromosomes make copies of themselves so that there are two of each one?

Answers

Answer:

The beginning and majority of the time is known as Interphase. Interphase is 80% of the total cycle and is where the cell does most of the work in replicating organelles, chromosomes, and preparing to undergo Mitosis which is the actual splitting process where one cell becomes two. During Interphase there are 3 major steps, G1, S, and the G2 phase.

Explanation:


How are DNA and RNA different in terms of function, #strands, and sugars

Answers

Answer:

Functions: DNA is responsible for storing and transferring genetic information while RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins

Strands: DNA is a double stranded molecule while RNA is a single stranded molecule

Sugars: DNA contains the sugar dioxyribose and RNA contains the sugar ribose

unit 3 body systems test

Answers

Answer:

ursghbbbvvvvbhhhhhhb

During cellular respiration, every living thing uses ______ and releases ______ back into the environment.

Answers

Answer:

oxygen and carbon dioxide

Explanation:

Disease or disorder that affects the immune system

Answers

Answer:

If you have an autoimmune disease, your immune system attacks healthy cells in your body by mistake. Other immune system problems happen when your immune system does not work correctly. These problems include immunodeficiency diseases. If you have an immunodeficiency disease, you get sick more often.

Explanation:

When do plants make the most sugar?

Answers

Answer: All green plants make sugar through photosynthesis, the process plants use to transform the sun’s energy into food.

Explanation:

Answer:

Both photosynthesis and respiration occur within plant cells. During the day, photosynthesis is the dominant process in plants. This means that the plant produces more glucose than it uses during respiration. At night, or in the absence of light, photosynthesis in plants stops, and respiration is the dominant process.

Explanation:

If it’s right guess what you get…. Just take a guess

Answers

Answer:

B) Carbon Dioxide, Water, 36 ATP

Explanation:

Cellular respiration takes A (Glucose & Oxygen) and converts it into B (Carbon Dioxide, Water, and 36 ATP)

Hope This Helped!

PLEASE HELP!!!!!
LINK GET REPORTED
Select the statement that is true. (1 point)
O DNA and RNA are both double-stranded
O Translation copies DNA to mRNA, while transcription converts mRNA into proteins.
O Thymine is only present in DNA, while cytosine is only present in RNA
O DNA has the sugar deoxyribose, while RNA has the sugar ribose.

Answers

I believe it's B

DNA is blueprint

mRNA is making the blueprint (If I recall correctly)

D is my 2nd best choice if I'm wrong

What is a water molecule made of?
O A. One carbon atom and two oxygen atoms
B. One carbon atom and four hydrogen atoms
C. One oxygen atom and two hydrogen atoms
D. One hydrogen atom and two oxygen atoms
SUI

Answers

Answer:

the answer is c

Explanation:

H2O=two hydrogen molecules and one oxygen molecule

Who is credited with coming up with the
name cell ?

Answers

Answer:

Robert Hooke

Explanation:

Have a nice day

one heart-health effect of monounsaturated fatty acids is to

Answers

Monounsaturated fatty acids are fatty acids that contain one unsaturated carbon molecule in its structure.

One heart-health effect of monounsaturated fatty acids is that they protect the heart from heart diseases.

Monounsaturated fatty acids are very good for the human body.

Some of the foods where you can get monounsaturated fatty acids are: Avocados, nuts, olive oil, canola oil.

Some of the health benefits of fatty acids are:

a) Monounsaturated fatty acids aids in weight loss.

b) Monounsaturated fatty acids are healthy fats such that it helps in the prevention of heart diseases that cause the clogging of the arteries by lowering the levels of bad cholesterol in the body.

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which is an abiotic factor that functions as a limiting factor for the autrophs in the ecosystem below?​

Answers

Answer:

i hope it helps you

Examples; of biotic factors include any animals, plants, trees, grass, bacteria, moss, or molds that you might find in an ecosystem.

Explanation:

In general, biotic factors are the living components of an ecosystem and are sorted into three groups: producers or autotrophs, consumers or heterotrophs, and decomposers or detritivores.

please MARK ME AS BRAINLIEST PLEASE MARK ME AS BRAINLIEST PLEASE

Can someone help me with this​

Answers

Answer:

you placed prokaryotic and eukaryotic in the wrong positions

hope that helps:)

the wing of a penguin is ________ the arm of a human.

Answers

The wing of a penguin is homologous to the arm of a human.

Homologous organs refer to organs of different organisms that are structurally similar but functionally different.

The wing of a penguin and the arm of a human are structurally similar because they are both built on the same pentadactyl or five-digit plan.

Despite the structural similarity, the wing of a penguin and the arm of a human are adapted for different functions. While the wings of a penguin are used to propel the animal in water by flapping them together, the arms of a human are adapted for several functions, including swimming when necessary.

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Help it’s 9th grade biology

Answers

animals is the answer here you go, im sorry

Which molecule most likely has the greatest amount of stored energy in its
bonds?
A.O=C=O
B.H-O-H
C.Fe-O
D.Na-CI

Answers

Answer:

O=C=O

Explanation:

I hope this helps.

Yo who gonna help me today

Answers

Answer:

The answer would be...

Explanation:

It reverses the order of bases in a DNA strand.

Hope this helps. Sry if I get it wrong!

Qawsedrftgyhujikolpplkmjnhbgvfcdxszawexrcctvybunimkjnhbgvfcdxs

What is the function of the Golgi apparatus?

Question 15 options:

It provides an acidic environment for the digestion of macromolecules.

It constructs lipids and breaks down carbohydrates.

It modifies and stores proteins received from the endoplasmic reticulum.

It gives the cell shape and anchors many organelles in place.

Answers

Answer:

It modifies, stores, and exports proteins received from the ER.

Explanation:

It provides an acidic environment for the digestion of macromolecules.

-The lysosome is composed of multiple enzymes that degrades marcromolecules

It constructs lipids and breaks down carbohydrates.

-The smooth ER synthesizes lipids and metabolizes carbohydrates

It modifies and stores proteins received from the endoplasmic reticulum.

-The golgi apparatus is the site where proteins are processed and exported to other organelles.

It gives the cell shape and anchors many organelles in place.

-The cytoskeleton gives structure to the cell and anchors organelles in place.

1
are organisms capable of transforming one
form of energy (light energy or chemical energy) into the food
they need to do work.
Check it
2 SCRATCHPAD
Improve thls question

Answers

Answer: Yes, organisms are able to transform both light energy and chemical energy into food.

What is true about the motion of chromosomes during binary fission?

Chromosomes start being copied at the center of the cell. They move to the ends as replication
Occurs.

Chromosomes start being copied at the center of the cell. They remain at the center throughout the
replication process.

Chromosomes start being copied at a corner of the cell. The newly produced copy moves to the other
end

Answers

Answer:

Chromosomes start being copied at the center of the cell. They move to the ends as replication

Occurs.

Explanation:

How are the competition and the commensalism relationships similar

Answers

Answer:

Predation and Competition. Two of the main ways that populations interact with one another is by competition and by predation. In competition, individuals seek to obtain the same environmental resource. In predation, one population is the resource of the other.

Explanation:

True or False: the enzyme that scientists have found to break down the sugar chains of
biomass was discovered in a virus.

Answers

Answer:

true

Explanation:

used my head

True :the enzyme that scientists have found to break down the sugar chains of biomass was discovered in a virus.

What enzyme breaks sugar down?

Sucrase is the intestinal enzyme that aids in the breakdown of sucrose (table sugar) into glucose and fructose, which are used by the body as fuel.

What are the main types of enzymes that bacteria produce?

Enzyme include :

amylaseglucoamylasexylose isomerase lactaselipase cellulase xylanase

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