A scientist is testing the effectiveness of Drug X on cancer. She gives a small amount of the drug to mice that have cancer. She gives each mouse a different amount from 1 to 10 grams, and then measures the size of the tumor in each mouse before the drugs and two weeks after the drugs. She gives one of the mice sugar instead of Drug X. What is her control in this experiment?

Answers

Answer 1
The mice not receving the drug is the control group, meaning that mouse is the baseline for the expirement.
Answer 2

Answer:

The control of this experiment is the rat that received sugar in place of the drug.

Explanation:

In a scientific experiment, control is characterized by the individual (or object) who has not received what is being tested in the experiment. In the case of the above question, the experiment wants to test the effectiveness of a drug in fighting cancer. All rats received different doses of this medicine, except for one mouse that received sugar in place of the medicine. This mouse is the control of the experiment and will serve to compare how cancer is reduced in individuals who received the drug compared to those with cancer who did not receive the drug.


Related Questions

Consumption of 10 mcg of folate as cooked spinach and 10 mcg folic acid supplement
a. results in _____ mcg dfe.

Answers

Consumption of 10 mcg of folate as cooked spinach and 10 mcg folic acid supplement results in 27 mcg DFE.

If someone consume 10 mcg of folate as cooked spinach and 10 mcg folic acid supplement then it results in 23.4mcg dfe as 1mcg of folic acid/ folate is equals to 1.67 mcg dfe.

What is Folic acid?

Folic acid is also known as Folate. it is a type of vitamin known as vitamin B9 or folacin. It is the water soluble vitamin. Its chemical formula is  [tex]C_{9}H_{9}N_{7}O_{6}[/tex].

It helps the body to make red blood cells. It is present in certain foods. It is necessary in women for who are pregnant if not taken in proper amount it can cause major birth defects of a babies brain or spine.

It helps to form DNA and RNA and it is also involved in protein metabolism. It plays a role in breaking down of homocysteine which is the type of amino acid that can exert harmful effects in the blood if it is present in the body in high amount.

The RDA for folate is in micrograms of dietary folate equivalents (DFE).  Men and women ages 19 years and older should aim for 400 mcg DFE. 1 mcg dfe is equal to 0.6 MCG of Folic acid.

Foods with Folic acid include leafy green vegetables, fruits, dried beans, peas, nuts and other green products.

Its deficiency can include megaloblastic anemia which arises due to lack of folate in the diet that produces less RBC and larger in size than normal.

Thus, if someone consume 10 mcg of folate as cooked spinach and 10 mcg folic acid supplement then it results in 23.4mcg dfe as 1mcg of folic acid/ folate is equals to 1.67 mcg dfe.

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LT: Predict genetic outcomes for various crosses.

Answers

I hope this helps :)

Patsy has always been “larger than life.” She tends to blow even small annoyances out of proportion. For example, when the store didn’t have the dress she wanted for prom, it was the “end of the world.” Her friends have gotten used to her insecurity and her need to be constantly reassured. Which of the Big Five personality traits is best illustrated in this scenario?

Answers

neuroticism is the anwer

The advantages of seeds, compared to spores, include ________.

Answers

Seeds have cotyledons from where they can draw their nutrient in their early stages of development. Pollens must draw their nutrient from their environment from the start. Seeds have an outer coating (testa) that protects the embryo and enable it to remain dormant in the soil until right conditions for growth set forth Seeds have a fully developed embryo that can begin to grow immediately there are right conditions. However, pollen has a single cell instead of an embryo, which must undertake cell division and specialization before beginning to germinate

Predict: logging removes vegetation that anchors soil and prevents erosion. how do you think logging will affect a coral reef? explain.

Answers

Logging leads to higher erosion. This leads to increased sediment transport in rivers. The majority of rivers run to the ocean. Higher sediment loads in the ocean could block out sunlight and disrupt filtering mechanisms of coral reef organisms.

What are the essential components for controlling Type II diabetes? What are some differences between Type I diabetes and Type II diabetes? Using the exchange system, if a person ate two fat exchanges with a meal, such as one-quarter of an avocado, how many calories would he or she get from the avocado? How can using an exchange list help a person with diabetes maintain his or her health? Using carbohydrate counting, how many grams of carbohydrates does a ham sandwich contain? What is the carbohydrate counting method, and how is it used in diet control?

Answers

A healthy lifestyle that includes adequate rest, exercise, and a balanced diet.

Type I is insulin-dependent; Type II is non-insulin-dependent. Type I requires injectable insulin to treat; Type II can be treated without insulin with correct diet and exercise. A person is usually born with Type I diabetes, whereas Type II has been linked to obesity and poor dietary habits.90 calories; one fat exchange = 45 calories. 

Exchange lists can be used by diabetics to give freedom of choice in what they can have to eat or drink. It allows diabetics to select types and amounts of foods while maintaining a healthy calorie level.30 grams or 2 carbs, because two slices of bread 2 starch servings.

Carbohydrate counting can help people control their carbohydrate intake, which helps control blood sugar. It allows flexibility in menu planning because no food is excluded, and only carbohydrates are counted.

A healthy lifestyle pattern includes a balanced diet, regular exercise, and the absence of any type of disease. The rest is also a crucial part of the routine to live a healthy lifestyle.

Insulin is a hormone secreted by the pancreas. Insulin regulates the level of glucose in the blood. The depleted amount of insulin blood leads to the disease of diabetes.

Type I diabetes is insulin-dependent, such that it requires the injection of insulin to maintain the glucose level in the body. The human body fails to produce the insulin that can be caused due to the autoimmune reaction.

Type 2 diabetes is not insulin-dependent, such that a person can treat the disease with prior exercise and the type of diet they are taking. Type II diabetes has been linked to obesity, poor dietary habits, and inadequate nutrients.

The exchange list is used by diabetics to give them freedom of choice. The patient is free to choose the type of food and maintain the calorie level.

The one fat exchange is equal to the 45 calories.

For example, there are 0.30 or two units of carbs, which is equal to the two servings of bread starch slices.

The primary nutrient, carbohydrates plays a crucial role in the diet of a diabetic. The intake of carbohydrates allows the diabetic to control the diet and follow a healthy lifestyle. The flexibility of the food menu is provided as only intake of carbohydrates is calculated.

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Which of the following is a way that minerals are used?
a.
industry
b.
construction
c.
technology
d.
all of the above

Answers

D. all of the above. 

Materials are used in each of these selected choices. :)
D. all of the above.

When at first thought, it would seem that it is erosion. Erosion not only eliminates the soil minerals, it also washes everything else and that includes the soil. In a different manner, Leaching can happen when certain minute particles of the minerals are melted and mixes with water. All that is left in the soil will be the bigger particles that are not soluble by water. In this manner, only a soil that cannot properly nourish remains as it is stripped off of minerals.

Which of these blood samples most likely came from the left ventricle?

Answers

The answer would be Sample A (bright red blood cells).

Blood right ventricle is dark red because it has a high amount of carbon dioxide. The blood will be pumped into the lungs where carbon dioxide will diffuse out and oxygen will diffuse in. After that, the blood will become bright red and pumped into left atrium then left ventricle.
Blood in the left ventricle would be bright red because it contains a high amount of oxygen. 
Sample A most likely came from the left ventricle, as this is the portion of the heart that receives freshly oxygenated blood to be pumped to different parts of the body. Oxygenated blood is blood that has had oxygen bounded to it by hemoglobin (a pigment made of iron found in red blood cells). The oxidation of this blood by the iron in the hemoglobin gives it the RBC bright red look. This blood containing the bright RBCs in transported to the left ventricle from the lung, after which it is spread throughout the body. Hence, in normal conditions of the heart, the Sample A most likely came from the left ventricle.

~~8. a horticulturist has a purple plant and a white plant. the horticulturist knows that purple is dominant over white. when they are bred, all of the resulting offspring are purple. what is the most likely genotype of the parent or original purple plant

Answers

the purple allele(P) - dominant
white allele (p) - recessive 
for the recessive allele to be expressed, both alleles should be recessive. The white plant therefore should have both p alleles. Genotype of white plant is pp.

the other parent is a purple plant. For the dominant allele to be expressed, at least one of the alleles should be P. Therefore genotype of the purple plant should have one P allele. the other allele needs to be determined.

For all the offspring, they receive one p allele from the white plant, since they are purple the other allele should be P.Genotypes of offspring should be Pp. For all the offspring to receive P from purple plant then purple plant should be homozygous PP, to give only P alleles.


Therefore genotype of parent purple plant is PP. 

A cancer treatment that kills unwanted cells with drugs is called _____.

metastasis

radiation

chemotherapy

surgery

Answers

Chemotherapy would be correct

Answer: Chemotherapy

Scientists take lots of time before removing a tumor. It is a process that involves many steps. If they find the tumor, they remove it with surgery. Doctors use radiation therapy to break the tumor apart using radiation beams. With Chemotherapy doctors use drugs to infect/poison the tumor.



Which fossil fuel produces the least carbon dioxide?

A. coal

B. natural gas

C. oil

D. nuclear energy

Answers

B. natural gas I believe
It's B natural gas hope this helps and I'm very sorry if u get this wrong:( but hope this helps:)

The philosopher Aristotle is known as the father ofphiloso

Answers

This is false. Socrates was a Greek philosopher and is considered the father of western philosophy. Plato was his most famous student and would teach Aristotle who would then tutor Alexander the Great.

Aristotle, a Greek philosopher born in Stagira, contributed to many areas of philosophy and science, with his work providing the cornerstone of the Western philosophical canon. He is known as the father of logic and political science. His teachings continue to have a profound influence on contemporary thought.

The philosopher Aristotle is often referred to as the father of logic and made substantial contributions to a wide range of subjects in the realm of philosophy and the sciences. Born in the city of Stagira in Classical Greece, Aristotle was a student of Plato and later tutored Alexander the Great. His work spans across various fields such as ethics, physics, biology, zoology, metaphysics, logic, aesthetics, poetry, theater, music, rhetoric, linguistics, politics, and government. Aristotle's teachings laid the groundwork for the Western philosophical tradition and his influence can still be seen today.

Aristotle founded the peripatetic school of philosophy and often wrote about political science, a term and field he is credited with establishing. His examination of politics and government provided an essential foundation for the study of these subjects. Additionally, he has been hailed for his work in logic, with the philosopher Martin Heidegger going so far as to call him 'the father of logic.' Aristotle's works remain a critical part of philosophical and scientific study, demonstrating his lasting legacy.

Which event from American born Chinese is an example of foreshadowing

Answers

The Chinese herbalist tells Jin Wang he can become whatever he wants as long as he is willing to give up his soul.

which examples demonstrate growth of an organism as a result of mitosis?
A. a plant withering in the sunlight
B. a baby growing into a toddler
C. a seed becoming a plant

Answers

A seed becoming a plant is examples demonstrate growth of an organism as a result of mitosis.
Hello there!

One thing that is highly unique about this is that, the organism allow them self to grow in size, and not only that, but they also have the ability to also repair them selves.But, based from your options, we would really need to (note) that the cells have no ability to grow what so ever. All they would do is practically divide there self.

So, I would NOT think the answer is (option a), because this would be known as growing. But, from my calculations, I believe that the correct answer would actually be (option c). I would say this basically if it were to wither, it would have to ability to repair it self. A baby does not need to repair it self.

This would totally make sense to why (option c) would be your correct answer. If this plant were to transform and grow.

Why?

Because it would have the ability to repair it's self.

A. a plant withering in the sunlight 
B. a baby growing into a toddler 
C. a seed becoming a plant

I hope this helps you!

What advantages might a multicellular alga have over a swimming single-celled one?

Answers

They can regenerate if partially mutilated, they're too big for predators and can allocate reproduction and swimming to different subsets of cells

The presence of organic material in soil makes it more productive for plant growth.


Please select the best answer from the choices provided

T
F

Answers

This is true, the presence of organic material in soil makes it more productive for plant growth.

Answer: True

The presence of organic material in soil makes it more productive for plant growth because it affects the physical, chemical and biological properties of soil.  It provides nourishment to microorganism and plants. The decomposition of organic matter results in release of simpler nutrients like nitrogen and phosphorous easily taken up by plant roots. Hence, responsible for increasing soil fertility.

If a germ cell has 46 chromosomes, how many chromosomes will you find in the daughter cells, after meiosis?

Answers

if germ cells is a bacteria so can't do meiosis and only can devide by binary fission

Where would you most likely find an organism that belongs to the domain Bacteria?
Acidic waters
Hot springs
Moldy bread
Yogurt

Answers

yogurt is the answer

The correct answer is Yogurt.

Yogurt is produced by fermenting various kinds of milk, including skim, whole, and evaporated milk with the assistance of lactic acid bacteria. These beneficial bacteria are generally from the two kinds of bacteria, that is, Lactobacillus bulgaricus and Streptococcus thermophilus.

A mutation causes a tomato plant to have much fewer, smaller leaves. Plants use their leaves to make food.

Which best describes this mutation?

Answers

The mutation is harmful. Due to the fact that it causes the plant to have fewer and smaller leaves and the plant makes their own food, it will affect the plants ability to survive.

Answer:

It’s A mate

Explanation:

What types of products are labeled as ancient grains by food companies?

Answers

The type of product which is labeled as ancient grain by food companies is Freekeh.

Freekeh is termed as a cereal food which is made from green durum wheat. It is being rubbed and roasted to create flavor. Freekeh is an ancient dish which is derived from North Africa cuisines and Levantine.
It is being harvested when grains are yellow and seeds are soft. It is sun-dried and piled. Some of the other ancient grains include wild rice, kaniwa, quinoa, and buckwheat.

The type of product which is labeled as ancient grain by food companies is Freekeh.

Freekeh or farik is a grain food produced from green durum wheat that is grilled and rubbed to accomplish its flavor. It is an classical food obtained from North African cuisines, enduring popular in various nations of the eastern Mediterranean Basin where durum wheat introduced. Freekeh is low in fat and high in protein and fiber. The piles are deliberately set on fire in order to burn straw . Under these circumstances, the high moisture content of the grains stops them from burning. The roasted wheat is then thrashed and sun-dried to produce a consistent flavor, texture, and color.

Explain how two pea plants with round yellow peas can, when crossed, produce offspring with the recessive traits—green wrinkled peas. Use a Punnett square in your explanation.

Answers

Final answer:

Two pea plants with round yellow peas can produce offspring with green wrinkled peas if they are both heterozygous (YyRr). A dihybrid Punnett square can be used to demonstrate the probability of these recessive traits appearing in the offspring, which is 1 in 16 for green wrinkled peas.

Explanation:

Understanding Dihybrid Crosses in Pea Plants:

When crossing two pea plants that both display the dominant phenotypes of round and yellow peas, it is possible to produce offspring with the recessive traits of green and wrinkled peas if both parent plants are heterozygous for these traits (YyRr). A dihybrid Punnett square is a tool that illustrates the crossing of individuals for two different traits simultaneosly. In this case, each parent would have the genotype YyRr, meaning they both carry alleles for both green (y) and wrinkled (r) peas, but these traits are not expressed because yellow (Y) and round (R) are dominant.

To utilize a dihybrid Punnett square in this context, we set up a 4x4 grid representing the potential combinations of alleles from each parent. The father's gametes are listed on the top, and the mother's gametes down the left side. Each has four possible gametes they can contribute, such as YR, Yr, yR, and yr. By filling out the Punnett square, we find there is a 1 in 16 chance for an offspring to be green and wrinkled (yyrr) which reveals that these particular parents can indeed produce such offspring despite not showing the traits themselves.

If two pea plants both with round yellow peas were truly heterozygous for these traits, their genotypes would be YyRr. The Punnett square combination from these parents may yield offspring with a genotype of yyrr, resulting in the expression of the recessive green and wrinkled pea phenotype.

Please select the word from the list that best fits the definition sediment deposited where a river flows into an ocean or lake

Answers

A sediment deposit where a river flows into an ocean or lake is a Delta.

Sediment deposited where a river flows into an ocean or lake is a delta.

A delta is a triangle shaped low landform that forms from deposition of sediment transported by a river as the flow leaves its mouth and enters a water body (such as an ocean, lake or a reservoir) that cannot transport the released sediment. Delta formation is based on certain factors including the location, size and geometry of the receiving basin.


a mirror will reflect A. all wave lengths of visible light that will shine on it B. Some wavelengths of visible light that will shine on it C. None of the wavelengths of visable light that will shine on it D. Only the visible light that slows down enough to be reflected.

Answers

A mirror will reflect B. Some wavelengths of visible light that will shine on it. Every matter absorbs light in certain wavelength. The wavelength is absorbed by the molecules that make up the matter. The wavelengths of light that do not get absorbed are reflected back. As with mirror, it has a narrow absorption band for the wavelengths of light in visible spectrum (graph shows that silver mirror has 85% reflectance in the visible spectrum). Hence it appears to us that all of the visible light gets reflected.

A. All wavelengths of visible light that will shine on it.

When light waves hit a smooth, shiny surface like a mirror, they bounce off in a predictable manner. This process is called specular reflection. Mirrors are designed to reflect all wavelengths of visible light that hit their surface, maintaining the colors and intensity of the reflected light.

This property allows mirrors to create accurate reflections of the objects and scenes in front of them. Unlike some surfaces that may absorb certain wavelengths and reflect others, a mirror reflects almost all incident visible light wavelengths, which is why it can show a clear and true-to-color image of its surroundings.

Which best compares the roles of nitrogen-fixing bacteria and certain decomposers in the nitrogen cycle?

Both organisms convert free nitrogen into nitrogen-containing compounds.

Both organisms convert nitrogen-containing compounds into free nitrogen.

The bacteria convert free nitrogen into nitrogen-containing compounds, while the decomposers convert nitrogen-containing compounds into free nitrogen.

The bacteria convert nitrogen-containing compounds into free nitrogen, while the decomposers convert free nitrogen into nitrogen-containing compounds.

Answers

Answer:

The bacteria convert free nitrogen into nitrogen-containing compounds, while the decomposers convert nitrogen-containing compounds into free nitrogen.

Explanation:

Nitrogen is an essential element for all living organisms. It is required for synthesis protein and nucleic acids and other nitrogenous compounds. Some nitrogen fixing organisms such as Rhizobium, fixes atmospheric nitrogen (N₂) into usable forms such as nitrate (NO₃⁻) or ammonium (NH₄⁺ ) in the soil. The plants take up (NO₃⁻) and (NH₄⁺ )by absorption from the soil by their roots and make protein and nucleic acids.  Animals take up nitrogen by eating plants.  On death of a plant or animal and the nitrogenous waste produced by animals, decomposers such as bacteria and fungi convert this organic nitrogen into ammonium (NH4⁺) and later into NO₂⁻ and NO₃⁻. Denitrifying bacteria change NO₃⁻ into free nitrogen (N₂).

The statement that compares the roles of nitrogen-fixing bacteria and decomposers in the nitrogen cycle is : ( C ) The bacteria convert free nitrogen into nitrogen-containing compounds while the decomposers convert nitrogen-containing compounds into free nitrogen

What Happens in the Nitrogen cycle

Nitrogen is essential for every living organism because in the Nitrogen cycle, nitrogen fixing organisms ( Rhizobium ) fixes nitrogen into the soil in the form of nitrate or ammonium ( NH₄⁺ ).

The nitrate and ammonium is taken up by the plants by absorption through its roots and is used for the production of protein and nucleic acids .as the plants die the bacteria convert the nitrogen compounds into free nitrogen.

Hence we can conclude that The bacteria convert free nitrogen into nitrogen-containing compounds while the decomposers convert nitrogen-containing compounds into free nitrogen

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Where are proteins made

Answers

As soon as the mRNA reached in the cytoplasm, it is fastened up by tiny protein-assembly mechanisms which is known as ribosomes. These attached ribosomes create proteins that will be castoff in the cell and proteins prepared for spread out of the cell.

its b thats the right awnser thank me later

When preparing food, it is especially important to keep _______________ out of the danger zone because bacteria can grow rapidly?

Answers

When preparing food, it is especially important to keep the temperature out of the danger zone because bacteria can grow rapidly in this temperature range.

Bacteria grow at very high speeds in the range of the danger zone, which is the range of temperatures between 40° F and 140° F. Leaving food out at room temperature for a long time (more than 1-2 hours) can lead to some bacteria to grow to levels which are dangerous. 
Final answer:

Perishable foods should be kept out of the 'danger zone' of 40°F and 140°F, where bacteria can grow quickly. This is crucial in food preparation to maintain food safety and prevent foodborne illnesses.

Explanation:

When preparing food, it is especially important to keep perishable foods out of the danger zone because bacteria can grow rapidly. The 'danger zone' is the temperature range in which bacteria can grow, typically between 40°F and 140°F (4°C and 60°C). Perishable foods like meat, dairy, and cooked vegetables should be kept out of this temperature range to maintain food safety. The fast growth of bacteria in this zone can lead to foodborne illnesses, so it's critical to keep foods properly chilled or heated.

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Some steps in mitosis are shown below in the incorrect order:

Step A: Chromosomes line up at the center of the cell
Step B: The cell membrane squeezes the middle of the cell to form two identical daughter cells
Step C: The sister chromatids are pulled apart
Step D: The chromosomes pair up

Which of the following sequences puts the steps in the correct order?

LOOK AT MY PROFILE THERE IS MORE QUESTIONS NO ONE HAS ANSWERED PLS HELP 10+ POINTS EACH!!!!!!!!!!!!!!!!!!

Answers

step a-1
step b-3
step c-2
step d-4

i hope thats correct i may be wrong it has been a long time since i have done this subject 

What is advantage of genetic engineering compared to artificial selection?

Answers

Both genetic engineering and artificial selection allow humans to change a species so that its members are better suited for human needs.

Which instruments do volcanologists use to predict volcanic eruptions

Answers

Hello,

The answer is a seismograph.

Reason:

A seismograph is a device that measure's the motion of the ground which includes the seismic waves therefore helps predict eruptions.

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

The law of reflection states that if the angle of incidence is 38 degrees, the angle of reflection is ___ degrees.

Answers

87693204 degrees you welcome

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Yeast has become important in genetic engineering because it Different jobs within the same profession may require more or less education. Which of the following states Bernoullis principle? A. As the speed of a fluid decreases, the pressure within the fluid decreases.B. As speed of a fluid increases, the pressure within decreases.C. As the speed of a fluid changes, the pressure of the fluid remains constant.D. None of the above Which accurately explains how profit is calculated? Millicent brushed back a strand of hair. It was stiff and sticky from the egg that they had broken on her head as she knelt blindfolded at the sorority altar a short while before. There had been a silence, a slight crunching sound, and then she had felt the cold, slimy egg-white flattening and spreading on her head and sliding down her neck. She had heard someone smothering a laugh. It was all part of the ceremony. What technique does the author use most to describe Millicent? The author uses indirect characterization to describe how Millicent looks. The author uses indirect characterization to describe how Millicent feels. The author uses direct characterization to describe how Millicent looks. The author uses direct characterization to describe how Millicent feels. If this is all the information the government has, which solution to reduce pollution is appropriate? check all that apply. Performance problems in a computer system are usually due to ____ problems. A prism with a volume of 360yd^3 is scaled down to a volume of 45yd^3. What is the scale factor? Enter your answer, as a decimal or a fraction in simplest form, in the box. I am a number less than 3000. When you divide me by 32, my remainder is 30. When you divide me by 58, my remainder is 44. What number am I? The role of plants in the water, oxygen, nitrogen, and carbon cycles Consider the function f(x)=23x+5 . What is f(52) ? Enter your answer, as a simplified fraction, in the box. How can karyotype analysis detect genetic disorders lab 12-2 answers? On Monday 21 dvd's were checked out at the library. This is 3 less than half the amount of books check out that day. How many books were checked out? Can the genotype for a gray-bodied fly be determined? why or why not? describe all of the possible genotypes for a fly with that phenotype. * Is mercury in a thermometer a pure substance or a mixture? when 6 less than 3 lots of a number is doubled the result is 18 Ashley has 100 books that she wants to give away at the rate of n books per week. Write a recursive function that represents the number of books Ashley has at any time. The recursive function that gives the number of books Ashley has at any time is = , starting at Carbohydrate digestion begins in the _______________. select one:a. mouthb. stomachc. small intestine You have been really sick, so you went to the doctor. The culture taken shows you have 400,000 bacteria. Your doctor prescribes a strong antibiotic which makes the bacteria decrease by a half every 4 hours. How many bacteria will be left after a day? A recipe calls for 2 cup so of flour, 1/4 cup sugar, 1/3 cup milk. What Ismaili the total volume of the three ingredients?