Cancer is a disorder in which some cells have lost the ability to control their what?
Answers
Answer:
Cancer is a disorder in which some cells have lost the ability to control their rate of growth
Explanation:
Related Questions
From smallest to largest, sequence (put in order) the following: chromosome, nucleus, DNA strand, base pair
Answers
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6. phylum (or division) of fungi commonly known as "sac fungi" which includes
morels and yeasts*
Ascomycota
ascus
Basidiomycota
budding
Answers
Answer:
Answer is Ascomycota.
Explanation:
I hope it's helpful!
A class of plant signal molecules (strigolactones) are produced and secreted by plant roots (such as milkweed) in response to a stimulus. These signal molecules stimulate AMF germination and growth. Which of the following would be the most likely stimulus for milkweed roots to produce strigolactones? 1. lower pH in the root cells than in the soil 2. an abundance of nutrients (N and P) in the root cells 3. low levels of nutrients (N and P) in the root cells 4. low water potential in the root cells
Answers
The most likely stimulus for milkweed roots to produce strigolactones would be low levels of nutrients (N and P) in the root cells.
Strigolactones are known to play a role in plant-microbe interactions, particularly with arbuscular mycorrhizal fungi (AMF). These fungi form symbiotic associations with plant roots, providing the plant with nutrients, particularly phosphorus, in exchange for carbon. Strigolactones are thought to be involved in the signaling between the plant and AMF, stimulating their germination and growth towards the plant's roots.
When the levels of nutrients, particularly nitrogen and phosphorus, are low in the soil, plants can release strigolactones to attract AMF to their roots. This symbiotic relationship allows the plant to obtain the necessary nutrients from the soil, even under nutrient-limiting conditions. Therefore, the most likely stimulus for milkweed roots to produce strigolactones would be low levels of nutrients in the root cells, signaling the need for the plant to attract and form symbiotic relationships with AMF to obtain the necessary nutrients.
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Is the coding sequence does not have promoter before ot rna or protein
Answers
If a coding sequence does not have a promoter before it, it is unlikely that it will be transcribed into RNA or protein.
What is a promoter?A promoter is a sequence of DNA that regulates the expression of a gene, which is the coding sequence that encodes for either RNA or protein. The promoter provides the initiation site for transcription, the process by which RNA is synthesized from the DNA template.
If a coding sequence does not have a promoter before it, it is unlikely that it will be transcribed into RNA, and even if it is transcribed, it will not be translated into protein. This is because the promoter is responsible for regulating the expression of the gene, and without it, the gene will not be activated and its product will not be produced.
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2. Sam and Jerry are having a discussion in their Environmental Science lass. Sam
says that abiotic factors determine what biotic factors can be in an ecosystem. Jerry
says that biotic factors determine what abiotic factors can be in an ecosystem. Who
is correct? Use an example to support your answer. (2 points)
Answers
Answer:
Jerry is right.
Explanation:
Abiotic factors can kill biotic factors, so technically Jerry is correct, just think of it as a TDI game, let's say Chris is an Abiotic factor, and the campers are biotic factors, Chris chooses weather or not they stay.
Lightning is one of the natural mechanisms by which atmospheric nitrogen is converted to ammonia or ammonium ions.
Group of answer choices
A)False
B)True
Answers
B
The statement "Lightning is one of the natural mechanisms by which atmospheric nitrogen is converted to ammonia or ammonium ions" is definitely true. Thus, the correct option is B.
What is Lightning?Lightning may be defined as the occurrence of a natural electrical discharge of a very short duration. The discharge of atmospheric electricity produces the flashing of light.
Lightning is one of the natural mechanisms that initiate the process of nitrogen fixation. Through this process, the atmospheric nitrogen (N2) is converted to ammonia (NH3) or ammonium ions (NH4+).
Therefore, it is well described above.
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Refer to Animation: Meiotic Cell Division. Prophase of meiosis I has some important differences from prophase of mitosis. These differences include: ___________ pair, and _________ occurs in meiosis.
Answers
Answer:
homologous pair and reductional division occur in meiosis
a particular prokaryote has the trp operon. in the presence of the amino acid tryptophan, the repressor is bound and activated. how does the repressor prevent transcription of the enzymes that produce tryptophan?
Answers
A specific prokaryote has the trp operon. in the presence of the amino acid tryptophan, the repressor is certain and activated this is due to the fact whilst tryptophan isn't always present inside the environment microorganisms will begin making their own so that you can build protein.
The trp operon is repressed while tryptophan ranges are high by using binding the repressor protein to the operator series thru a corepressor which blocks RNA polymerase from transcribing the top-associated genes.
High tryptophan The tryptophan binds to the top repressor and reasons it to change shape, changing into its lively (DNA-binding) shape. The Trp repressor with the bound tryptophan attaches to the operator, blocking off RNA polymerase from binding to the promoter and preventing transcription of the operon.
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The concentration gradient of the renal interstitium increases from the cortex to the tip of the medulla, this causes the urine to:
Become more concentrated
Become more dilute
To leak through the basement membrane
To help retain nutrients in the blood
Answers
The concentration gradient of the renal interstitium increases from the cortex to the tip of the medulla. This causes the urine to become more concentrated.
The renal interstitium is a network of connective tissue that surrounds the nephrons, blood vessels, and collecting ducts in the kidney. It comprises about 20% of the kidney's total volume. It is critical for water reabsorption and the regulation of electrolyte balance, among other functions.What causes the urine to become more concentrated?The concentration gradient of the renal interstitium increases from the cortex to the tip of the medulla. This causes the urine to become more concentrated. The high osmolarity of the renal interstitium aids in the reabsorption of water and sodium from the filtrate in the collecting duct. It is essential for maintaining proper fluid balance and preventing dehydration.The kidneys are two bean-shaped organs located in the back of the abdomen, just above the waist.
They are responsible for removing waste and excess fluid from the bloodstream. The functional unit of the kidney is the nephron. The nephron is made up of several structures that filter the blood and generate urine.The renal interstitium is a network of connective tissue that surrounds the nephrons, blood vessels, and collecting ducts in the kidney. It comprises about 20% of the kidney's total volume. It is critical for water reabsorption and the regulation of electrolyte balance, among other functions.The concentration gradient of the renal interstitium increases from the cortex to the tip of the medulla. This causes the urine to become more concentrated. The high osmolarity of the renal interstitium aids in the reabsorption of water and sodium from the filtrate in the collecting duct. It is essential for maintaining proper fluid balance and preventing dehydration.In conclusion, the concentration gradient of the renal interstitium increases from the cortex to the tip of the medulla. This causes the urine to become more concentrated. The high osmolarity of the renal interstitium aids in the reabsorption of water and sodium from the filtrate in the collecting duct. It is essential for maintaining proper fluid balance and preventing dehydration.
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(c) James results are shown in the table below.
Amount of Light (hours)
0
5
10
Number of Duckweed Plants after 1 Week
1
3
7
(i) Describe how increasing the amount of light affects the number of duckweed plants.
(ii) Explain why increasing the amount of light has this effect on pondweed plants.
(Q7 Total marks = 8)
Answers
i) From the table given, it is clear that the Duckweed plants responded to increased light. Where there was no light at all, there was only one of them. When light exposure was increased to 5 hours/day, the number of Duckweek plants increased to 3. When the amount of light increased, the number of duckweed also more than doubled, going from 3 to 7.
ii) As the light levels are increased there is an increase in photosynthesis in the plant. There is also an increase in growth.
What is photosynthesis?Photosynthesis is a process that plants and other organisms utilize to transform light energy into chemical energy that may then be released to power the organism's activities via cellular respiration.
Sunlight, water, and oxygen are required, and two processes occur, one light-dependent and one light-independent.
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Full Question:
(c) James results are shown in the table below.
Amount of Light (hours) Number of Duckweed Plants after 1 Week
0 1
5 3
10 7
(i) Describe how increasing the amount of light affects the number of duckweed plants.
(ii) Explain why increasing the amount of light has this effect on pondweed plants.
(Q7 Total marks = 8)
The chicken that Amal ate for lunch ate wheat. Wheat is a plant. Draw a food chain showing how the energy passed from the Sun to Amal when he ate the chicken
Answers
Answer:
I hope its clear and is correct
Explanation:
sun---wheat---chicken--amal
Bob has brown hair and Sally has blonde hair. If brown hair is dominant and blonde hair is recessive, is it possible for Bob and Sally to have a blonde-haired child? Use the GENOTYPE of each parent to EXPLAIN your answer.
Answers
Answer:
Yes
Explanation:
Bob (BB) Sally (bb) = spawn (Bb) Brown is dom resulting in a brown hair Spawn.
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An example of sunlight passing through clouds during sunset, results in what is often called the cloud's silver lining. Pastel shades of blue, pink, purple, and green can be observed at times of cloud cover. What is the cause of these patterns in the sky?
Responses
Water in the atmosphere and within the clouds themselves cause light waves to refract and reflect, creating an assortment of colors.
Water in the atmosphere and within the clouds themselves cause light waves to refract and reflect, creating an assortment of colors., EndFragment,
The patterns occur when light is diffracted from water droplets within the clouds. The amount of diffraction that occurs depends on the wavelength of the light, and shorter wavelengths are diffracted at a greater angle than longer ones.
The patterns occur when light is diffracted from water droplets within the clouds. The amount of diffraction that occurs depends on the wavelength of the light, and shorter wavelengths are diffracted at a greater angle than longer ones.
StartFragment, The patterns occur when light is diffracted from water droplets within the clouds. The amount of diffraction that occurs depends on the wavelength of the light, and shorter wavelengths are diffracted at a greater angle than longer ones., The patterns occur when light is diffracted from water droplets within the clouds. The amount of diffraction that occurs depends on the wavelength of the light, and shorter wavelengths are diffracted at a greater angle than longer ones., EndFragment, ,
The patterns occur when light is absorbed by water droplets within the clouds. The amount of absorption that occurs depends on the temperature of the air.
The patterns occur when light is absorbed by water droplets within the clouds. The amount of absorption that occurs depends on the temperature of the air., EndFragment,
The patterns occur when light is reflected from water droplets within the clouds. The amount of reflection that occurs depends on the wavelength of the light, and shorter wavelengths are reflected at a greater angle than longer ones.
Answers
The cause of the color patterns in the sky is when light is diffracted from water droplets within the clouds, the amount of diffraction that occurs depends on the wavelength of the light, and shorter wavelengths are diffracted at a greater angle than longer ones which is therefore denoted as option D.
What is Diffraction?This is a term which is described as the process of light bending around an obstacle or spreading out after it moves through a small or tiny space.
We should also be aware that it is dependent on the wavelength of the light such that those with a shorter wavelengths are usually diffracted at a greater angle than longer ones which is therefore the reason why the color pattern is observed in the sky and is therefore the reason why it was chosen as the correct answer.
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The difference in the concentration of dissolved particles from one location to another is called a..,
Answers
Answer:
Concentration Gradient Hope it helps youIf the atmospheric carbon dioxide concentration becomes 300 ppm, what would happen to the temperature?
Answers
It is difficult to say exactly what would happen to the temperature if the atmospheric carbon dioxide concentration were to increase to 300 ppm, as there are many complex factors that can influence global temperatures. However, it is generally accepted that increasing levels of carbon dioxide in the atmosphere can contribute to global warming and a rise in temperatures.
Therefore, if the atmospheric carbon dioxide concentration were to increase to 300 ppm, it is likely that there would be a corresponding increase in global temperatures. However, the exact magnitude of this increase would depend on a variety of factors, including the rate of carbon dioxide emissions, the effectiveness of carbon sinks (such as forests and oceans) in removing carbon dioxide from the atmosphere, and other natural factors that can influence global temperatures.
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george beadle and edward tatum used mutant strains of neurospora to formulate the one-gene-one-enzyme hypothesis. researchers later updated this hypothesis to propose that one gene encodes one polypeptide because proteins can have multiple subunits. consider a heterodimeric protein. how many genes are required to form this protein?
Answers
George Beadle and Edward Tatum used mutant strains of neurospora to formulate the one-gene-one-enzyme hypothesis. researchers later updated this hypothesis to propose that one gene encodes one polypeptide because proteins can have multiple subunits. The two unique genes are required for mutation to form this protein.
A mutation might or might not have an effect on an organism's phenotype, or its outward features. Evolution, cancer, and the maturation of the immune system, including junctional variation, are among the beneficial and ill biological processes in which mutations take part. All genetic variety results through mutation, which also provides the justification for the action of forces of evolution like natural selection. Sequence changes brought on by mutation can take many distinct forms. Gene mutations can be inert, change a gene's outcome, or stop a gene from functioning properly or fully.
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in meiosis shown in the image, homologous chromosomes separate in step a, which is called ______, and four haploid nuclei are formed in step b, which is called ______.
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In meiosis, homologous chromosomes separate in step a, which is called "anaphase I," and four haploid nuclei are formed in step b, which is called "cytokinesis II."
During anaphase I of meiosis, homologous chromosomes, which consist of one chromosome from each parent, separate and move toward opposite poles of the cell. This ensures that each resulting cell receives only one copy of each chromosome pair.
Anaphase I is a crucial step in meiosis as it ensures the distribution of genetic material between the daughter cells is randomized and contributes to genetic diversity.
Following anaphase I, the cell enters cytokinesis II, the second stage of cell division in meiosis. Cytokinesis II involves the physical separation of the two cells formed after anaphase I, resulting in the formation of four haploid nuclei, each containing a single set of chromosomes.
These nuclei go on to further undergo a process called "telophase II" to form four distinct haploid cells, known as gametes, which are essential for sexual reproduction.
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how has technology helped to add to our species list
Answers
Answer:
So umm I had a couple at the top of my head but I really didn't know the rest so I did se.arch it for you're better understanding:
The one's I knew:
Better mappingTracking the animals sounds for where they are atdrones to see the animals from the skyThe one's I searched:
Remote controlling samplingTexting ElephantsHigh tech fishing hooksBeehive fencesRemote measurement tools
The function of thick mucus in the stomach is to Group of answer choices promote fat digestion. activate stomach enzymes. protect stomach cells from acid and enzymes. keep the stomach bacteria-free.
Answers
Answer:
protect stomach cells from acid and enzymes.
Explanation:
This prevents peptic ulcers.
A blood sample is taken from a blood spatter pattern at a crime scene. the blood was found to be type a . since the primary suspect is also type a , this is considered individual evidence. true false
Answers
From a blood spatter pattern at a crime scene. the blood was found to be type A . Since the primary suspect is also type A , this is considered as individual evidence is false.
What is DNA?This is referred to as deoxyribonucleic acid and is the genetic material of organisms. Every individual has a unique DNA sequence which is used as an individual evidence.
Blood type cannot be used because it is a presumptive screening tests thereby the reason why false was chosen.
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seioct a cause of gobal warming. The reouts are given in the acconsganying dasa table. Use a 0.01 nignifcance leval to ferst the claim that the sex of the respondent is independent of the choice foe the cause of globil warming: Do-men and women appear to agren, of is thore a subatantial diffecence? Fick hine to vew tha ek-spuare distrbutian takle. Idensfy the nul and allernative hypothesos Compute the tost ntalisfic (Found to three decaral poses as neoded) Find the critical valie(s). (Reazd to ziree decimal places as needed. Use a comma to separase antswers as neoded) What is tho conclution bated on the hypothasis test? sutfoent evidence to warant rejection of the daim that the sex of the respondent is independent of the choica for the cause of global warming Mon and wamen ta ingrae.
Answers
There is sufficient evidence to warrant rejection of the claim that the sex of the respondent is independent of the choice for the cause of global warming.
The hypothesis test is conducted to determine if there is a significant association between the sex of the respondent and their choice of the cause for global warming. The null hypothesis (H0) assumes that there is no association, while the alternative hypothesis (H1) assumes that there is a significant association.
By analyzing the data using a 0.01 significance level, the chi-square test is performed. The test calculates the chi-square statistic and compares it to the critical value(s) to make a conclusion.
The obtained test statistic is compared to the critical value from the chi-square distribution table. If the test statistic exceeds the critical value, we reject the null hypothesis in favor of the alternative hypothesis, indicating that there is a significant association between the variables.
In this case, the obtained test statistic suggests a substantial difference between men and women regarding their choice of the cause for global warming. Therefore, we reject the null hypothesis, providing sufficient evidence to conclude that the sex of the respondent is not independent of the choice for the cause of global warming.
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Answers
A three-nucleotide sequence of DNA or mRNA that specifies a particular amino acid or termination signal; the basic unit of the genetic code.
Answers
The three-nucleotide sequence of DNA or mRNA that specifies a particular amino acid or termination signal is known as a codon.
What is a codon?
Each codon is made up of a specific combination of nucleotides, which are the building blocks of DNA and RNA. A nucleotide consists of a sugar molecule, a phosphate group, and a nitrogenous base. The nitrogenous bases are adenine, thymine, cytosine, and guanine, and they pair up in a specific way to form the base pairs that make up the DNA double helix.
The sequence of these base pairs determines the sequence of nucleotides in the mRNA transcript, which in turn determines the sequence of amino acids in the protein that is being synthesized. The genetic code is based on the specific pairing of codons with amino acids or termination signals.
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Which DNA fingerprinting technique examines the length variation of DNA repeat sequences in human DNA? variable tandem repeats analysis polymerase chain reaction analysis Y chromosome analysis mitochondrial DNA analysis
Answers
Answer:
mitochondrial DNA analysis
Explanation:
A DNA fingerprint is a laboratory technique that identifies DNA repeat sequences that produce a pattern specific to that individual. Mitochondrial DNA (mtDNA) exhibits several useful features for human identification and for their use in DNA fingerprinting: 1-doesn't undergo recombination, 2-a high copy number, and 3-matrilineal inheritance (i.e., mtDNA is inherited from the mother). It is for these reasons that mtDNA fingerprint analysis has become very useful for human identification.
Answer:
D. mitochondrial DNA analysis
Explanation:
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the streptococcus pneumoniae bacteria choose one: a. is the only causative agent of pneumonia. b. is unlikely to infect immunocompromised patients. c. is surrounded by a polysaccharide capsule that makes phagocytosis very difficult. d. can only cause lung infections.
Answers
The Streptococcus pneumoniae bacteria are surrounded by a polysaccharide capsule that makes phagocytosis very difficult.
What is the Streptococcus pneumonia bacteria?
Streptococcus pneumoniae is a type of bacterium that is spherical and has a thick polysaccharide capsule. This bacterium is one of the most common causes of pneumonia, meningitis, and otitis media. Infections with the bacteria Streptococcus pneumonia can be serious and fatal, especially in people who are vulnerable, such as children and the elderly.
Some strains of Streptococcus pneumoniae are resistant to antibiotics, making treatment more difficult. The development of vaccines, on the other hand, has had a significant effect in reducing the incidence of pneumococcal disease in young children.
What are the characteristics of the Streptococcus pneumonia bacteria?
Streptococcus pneumoniae has the following characteristics:
Shape: spherical.
Color: Gram-positive.
Symptoms: pneumonia, meningitis, otitis media, sinusitis, sepsis, and bacteremia.
Resistance: Some strains are resistant to antibiotics.
Motility: non-motile.
Growth: facultative anaerobe.
Oxygen requirements: facultative anaerobe.
The capsule: The Streptococcus pneumoniae bacteria are surrounded by a polysaccharide capsule that makes phagocytosis very difficult. This capsule serves as a barrier to phagocytosis, allowing the bacteria to avoid being destroyed by the immune system.
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Eye color in fruit flies is an X-linked trait. White is recessive and red is dominant. In a cross between a pure red eyed female and a white eyed male, what would the genotypes of the parents be?
Responses
Answers
The genotype of the female parent would be X^R X^R and the genotype of the male parent would be X^w Y. Option D is correct.
Since eye color in fruit flies is an X-linked trait, the genes for eye color are found on the X chromosome. The female fruit fly has two X chromosomes, one from each parent, while the male has one X chromosome and one Y chromosome. In this cross, the female parent is pure red-eyed, which means that she has two dominant alleles for eye color (X^R X^R).
The male parent is white-eyed, which means that he must have two recessive alleles for eye color (X^w Y). When the two parents are crossed, all of the female offspring will inherit one X chromosome from each parent and will be heterozygous for eye color (X^R X^w), while all of the male offspring will inherit their X chromosome from their mother and will be white-eyed (X^w Y). Hence Option D is correct.
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How doe your anwer to quetion 1 upport the idea that organim in communitie depend on one another for matter and energy?
Answers
There are several ways to support idea that organism in community depend on one another for matter and energy : food webs , symbiotic association , mutualism etc.
The organism in the nature depends on one another for food, water, protection, nutrient supplies etc.
food web, the organism depends on one another for food and energy
The organism like cow depends on plants for food, animals like tiger deoends on cow for food, eagle depends on tiger for theri food as they are scavengers.
symbiotic relationship, like algae and fungi where algae is supplied by water and protection and food is supplied to fungi in return.
mutualism, here both the organisms benefit from each other
eg, aphids and ants.
bees and flower
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Look at the Punnett square above. What should go in the blanks at the top for Mom's genetic makeup?
Answers
Answer: Both blanks should have a "q".
Explanation:
This question is basically asking for the reserves of a Punnett square. Work backwards knowing the genetic makeup of the offspring to determine what the mothers must be. Since when matched with the fathers "q" it produces offspring with "qq" the mother must be giving a "q" to the offspring. When matched with the fathers "Q" it produces "Qq", the mother must have to "q"s.
Which of the following explains how these undifferentiated cells become specialized cells?
Answers
Answer:
Stem cells have the ability to recreate functional tissues. Pluripotent stem cells are undifferentiated; they do not have any tissue-specific characteristics (such as morphology or gene expression pattern) that allow them to perform specialized functions.
Explanation:
Loui Pateur determined that microbe only appeared in terile broth if the broth wa eynoed to the air He concluded that tho microbe were found in the air contaminated the broth. Pateur’ finding contributed to which part of the cell theory ?
Answers
Louis Pasteur's pasteurization experiment illustrates the fact that the spoilage of liquid was caused by particles in the air rather than the air itself
These experiments were important pieces of evidence supporting the idea of germ theory of disease.
Louis Pasteur designed a procedure to test whether sterile nutrient broth could spontaneously generate microbial life. To do this, he set up two experiments. In both, Pasteur added nutrient broth to flasks, bent the necks of the flasks into S shapes, and then boiled the broth to kill any existing microbes
This demonstrated that certain germ particles in the air caused the spoiling of the broth, disproving spontaneous generation – a previous leading theory of disease that claimed the air itself was to blame.
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Louis Pasteur's experiment on pasteurization shows that particles in the air, not the air itself, caused liquids to go bad. which helps in disease.
The germ theory of disease was helped a lot by the results of these experiments.
Louis Pasteur came up with a way to see if sterile nutrient broth could make microorganisms grow on its own. He did this by setting up two tests. In both cases, Pasteur put nutrient broth into flasks, bent the flasks' necks into S shapes, and then boiled the broth to kill any microbes that were already there.
This showed that certain germ particles in the air caused the broth to go bad. This disproved spontaneous generation, which said that the air itself was to blame for diseases.
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