Three red square pieces of wood, four yellow square pieces, and five blue square pieces are put into a cloth bag. Four red round pieces, two yellow round pieces, and three blue round pieces are also put into the bag. All the pieces are then mixed about. Suppose someone reaches into the bag (without looking and without feeling for a particular shape piece) and pulls out one piece.
The question is incomplete. Here is the complete question.
Three red square pieces of wood, four yellow square pieces, and five boue square pieces are put into a cloth bag. four re round pieces, two yellow round pieces, and three blue round pieces are also put into the bag. All the pieces are then mixed about. Suppose someone reaches into the bag (without looking and without feeling for a particular shape piece) and pulls out one piece.
What are the chances that the piece is red round or blue round piece?
a. Cannot be determined
b. 1 chance out of 3
c. 1 chance out of 21
d. 15 chances out of 21
e. 1 chance out of 2
Because:
a. 1 of the 2 shapes is round
b. 15 of the 21 pieces are red or blue
c. There is no way to tell which piece will be picked
d. Only 1 of the 21 pieces is picked out of the bag
e. 1 of every 3 pieces is a red or blue round pieces
Answer: b. 1 chance out of 3
e. 1 of every 3 pieces is a red or a blue round pieces
Explanation: Inside the bag, there will be:
Total of squares: 3 + 4 + 5 = 12Total of round: 4 + 2 + 3 = 9Total of pieces inside the bag: 12 + 9 = 21The question is asking for a round red piece. The probability of that happening is
P(r) = \(\frac{4}{21}\)
And a blue round piece:
P(b) = \(\frac{3}{21}\)
It is a "OR" probability, so:
P(r or b) = \(\frac{4}{21} +\frac{3}{21}\)
P(r or b) = \(\frac{7}{21}\) or \(\frac{1}{3}\)
Which means 1 out 3 pieces taken out of the bag will be red or blue.
Which of these is the most likely reason why the Steady State Theory of origin of the universe has been rejected? (3 points)
Answer:
The options are
it was too old to be used in modern times
it was too complicated for scientists to understand
scientists found new evidence to prove it invalid
scientists discovered a shorter theory to replace it
The answer is scientists found new evidence to prove it invalid
Steady State Theory of origin of the universe has been rejected due to new findings about how the universe was formed through carefully observing it which faulted past theories. This validates the option which states that scientists found new evidence to prove it invalid.
1. When Springfield's day light time is about 9 hours during winter, what is the Sun-angle in Springfield? Use your
calculation to explain your answer.
The sun angle in Springfield during winter can be calculated by dividing the total daylight hours by 2 and then multiplying it by 15 degrees. Therefore, if the daylight time is about 9 hours, the sun angle in Springfield would be approximately 67.5 degrees.
To determine the sun angle in Springfield during winter, we can use a basic calculation. The sun's apparent movement across the sky can be divided into 360 degrees, representing a full circle. Considering that there are 24 hours in a day, each hour corresponds to 15 degrees of the sun's movement (360 degrees divided by 24 hours).
In this case, if the daylight time during winter in Springfield is about 9 hours, we can calculate the sun angle by dividing this value by 2 (to account for the fact that the sun is not directly overhead during winter) and then multiplying it by 15 degrees. Therefore, (9 hours / 2) * 15 degrees equals approximately 67.5 degrees.
This calculation assumes a simplified model where the sun's movement is linear and neglects factors such as the Earth's axial tilt and atmospheric refraction.
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Cycle 202U Tier 2
During the eukaryotic cell cycle most growth happens during the
phase.
A Mitosis
B G1
C S
D G2
In what year(s) did a series of earthquakes hit New Madrid, Missouri?
Earthquakes are meterological events where the tectonit plates are in disturbances. Between 1811 to 1812 a serie of three large earthquakes happened in New Madrid, Missouri (New Madrid Fault) (from december 1811 to februeary of 1812).
Why can a person who is unable to produce insulin be successfully treated with insulin derived from genetically modified bacteria? A. The insulin-producing gene of bacteria was altered to have the same base sequence as the human counterpart and now produces the human version of insulin. B. Bacterial insulin is similar enough to human insulin to serve the same purpose. C. Typical bacterial insulin is exactly the same as human insulin. D. The gene that produces insulin in humans was inserted into the bacteria where it continues to produce human insulin.
A person who is unable to produce insulin can be successfully treated with insulin derived from genetically modified bacteria because the bacteria have been altered to produce human insulin.
Option A correctly explains why genetically modified bacteria are used to produce insulin for individuals who cannot produce it themselves. Through genetic modification, the insulin-producing gene of bacteria is altered to have the same base sequence as the human insulin gene. This modification allows the bacteria to produce the human version of insulin, which can be used to treat individuals with insulin deficiency.
Option B is also partially correct. Bacterial insulin is structurally similar enough to human insulin to serve the same purpose. Although there may be slight differences between bacterial insulin and human insulin, they are close enough in structure and function to effectively regulate blood sugar levels in individuals who lack insulin production.
Option C is not entirely accurate. While bacterial insulin can be similar to human insulin, it is not exactly the same. The modifications made to the bacteria enable them to produce insulin that closely resembles human insulin, but there may still be minor differences.
Option D is not the correct explanation. The gene that produces insulin in humans is not inserted into bacteria. Instead, the insulin-producing gene of bacteria is modified to produce human insulin.
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after several cycles of cell division, a fertilized cell develops into a hollow ball of cells called a
Organ systems maintain which of the following at
just the right
levels to support life processes?
a.) pH
b.) Carcinogens
C.) Temperature and pH
d.) Carcinogens and pH
Answer:
C.) Temperature and pH
Explanation:
Organ systems maintain the right temperature and pH levels to support life processes.
This is known as internal regulation or homeostasis.
Processes that support life requires some amount of fairly constant conditions for optimum level of metabolism to be attained. When the conditions are poor or in excess, reactions can greatly suffer. The ability of complex organism to maintain the right levels to support life processes is called homeostasis. pH and temperature are very important to all living organisms.Answer:
i just did the same question
Explanation:
In a laboratory investigation, students measured the rate of fermentation in yeast cells. Data was collected by student groups
showing how the rate of fermentation is altered by:
1. pH of the reaction mixture;
2. amount of yeast added to the reaction mixture;
3. type of sugar added to the reaction mixture.
Students were instructed to find the optimum conditions for a new fermentation process to be used at the local bakery. The one
constant in all experimental groups is that the temperature remain at 25°C. Student teams used the Vernier Equipment
Pressure sensor, LabPro interface, gas pressure accessories kit, a clock with second hand, water bath, reaction flask with valve
and tubing, turkey baster, thermometer, source of hot and cold water, balance, 25 ml. graduated cylinder, buffer pH 7, yeast, and
sucrose,
A control situation was run: a. temperature 25°C, b. 25 ml. of buffer pH 7, c. 2 grams of sucrose, d. 2 grams of yeast. The three
substances were combined in the reaction flask and mixed by swirling. The flask and solution was placed in the 25°C water bath
with the stopper firmly in place but, with the valve open. After 10 minutes, when the yeast was active, the flask was sealed by
closing the valve. The collect button was clicked ON. A line, representing the pressure, appeared on the graph and individual
measurements appeared in the data table.
Data was recorded for 300 seconds or until the pressure reached 120 kPa.
One student group's data for amount of yeast can be seen here. Describe the students' results.
The students' results show that the rate of fermentation increases as the amount of yeast added to the reaction mixture increases.
How to explain the informationThe rate of fermentation increased because more yeast cells means more enzymes available to break down the sugar into ethanol and carbon dioxide. The students also found that the rate of fermentation is fastest at a pH of 7, which is neutral.
This is because the yeast enzymes work best at a neutral pH. The students' results suggest that the optimum conditions for fermentation are a temperature of 25°C, a pH of 7, and an amount of yeast of 4 grams.
The time to reach 120 kPa decreases as the amount of yeast increases. This is consistent with the students' hypothesis that the rate of fermentation increases as the amount of yeast increases.
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What is an atom's atomic number?
the number of electrons in an atom
the number of neutrons in an atom
the number of protons in an atom
the number of bonds in an atom
Answer:
the number of protons in an atom
Answer:
The number of protons in an atom
What going to happen to worm eaters population if we ran the simulation for five more turns?
If we ran the simulation for five more turns, it is likely that the population of worm eaters would continue to decrease, since they are competing with other species for resources. As the other species become more.
What is worm ?Worms are a type of computer malware (malicious software) that self-replicate and spread across networks, computers, and files. Worms often spread through email, instant messaging, and other file-sharing mechanisms. They are designed to cause disruption and damage data, as well as to steal information, such as passwords and financial data. Worms can also be used to create botnets, networks of computers that are controlled by a malicious actor and used to launch distributed denial of service (DDoS) attacks and other malicious activities.
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Define polar molecule or polarity.This is not a test question, could you please simplify the response to as few sentences as possible?
Polarity is caused by electronegativity. Electronegativity is the ability of an atom to attract electrons and when in a molecule there is a region of low electronegativity and a region of high electronegativity we say that the molecule is polar.
what properties would a farmer expect from a polyploid crop species?
A farmer would expect certain desirable properties from a polyploid crop species.
Polyploidy refers to organisms that have more than two sets of chromosomes, and in crop species, this can result in increased size, vigor, and yield. Polyploid crops may also exhibit greater resistance to stress, disease, and pests. Additionally, polyploid crops can be bred to produce seedless fruits, which can increase their commercial value. Overall, a farmer would expect a polyploid crop species to have improved characteristics that can lead to higher productivity, better quality, and increased profitability.
A farmer can expect several properties from a polyploid crop species, such as increased yield, enhanced stress tolerance, and improved disease resistance. Polyploidy often results in larger and more vigorous plants, making them desirable for agricultural production.
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two black dogs of unknown genotype are bred. what possible colors of offspring would they have? g
The possible colors of the offspring produced by a cross between two black dogs of unknown genotypes will be black and brown dogs.
What is Genotype?The possible colors of offspring of two black dogs of unknown genotype are black or brown. The reason for this is that both parents have the same genotype of Bb, which is heterozygous. As a result, they have a 50-50 % chance of producing black or brown offspring.
Black color is dominant over brown color, so black will always be the more likely outcome. However, the chances of brown offspring are not negligible, as they have a 25% chance of inheriting the recessive b allele from both parents, resulting in a homozygous recessive genotype.
A genotype is an individual's genetic composition. It's the entire set of genes that an individual possesses, including dominant and recessive alleles, that code for a particular trait. An individual's genotype determines its phenotype, or the physical and visible characteristics that result from its genetic composition.
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which of the following are examples of a new substance being formed . check all that apply A )bubbles
B )smell
C )change of state of matter
D )larger item is broken into smaller pieces
Smell, change of state of matter, and larger items being broken into smaller pieces are examples of a new substance being formed. Thus, options B, C, and D are correct.
How are new substances formed?As substances separate or mix to create one or more new compounds, a chemical reaction takes place. Bonds break, new bonds form, and new substances are created. The new chemicals' chemical properties are distinct from those of the original substances.
Chemical synthesis or chemical breakdown into two or more separate molecules occurs when one material reacts with another to produce a new substance.
Thus, smell, change of state of matter, and larger items being broken into smaller pieces are examples of a new substance being formed. Thus, options B, C, and D are correct.
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List three bacterial characteristics that make for a successful healthcare associated infectious agent. What is the number one thing we can do to prevent this type of infection? Describe two mechanisms bacteria use to resist the action of antibiotics, and two ways bacteria may acquire antibiotic resistance genes. Finally, discuss what we as a society can do to decrease the threat of antibiotic resistant bacteria.
Three bacterial characteristics: Pathogenicity, antibiotic resistance, and environmental survivability.
Number one prevention: Strict infection control measures.
Mechanisms of antibiotic resistance: Efflux pumps and enzymatic inactivation.
Ways bacteria acquire resistance genes: Horizontal gene transfer and genetic mutation.
Decreasing the threat: Responsible antibiotic use, enhanced surveillance, development of new treatments, strict infection control, and global collaboration.
Three bacterial characteristics that make for a successful healthcare-associated infectious agent are:1. Pathogenicity: The ability of the bacteria to cause disease in humans is a crucial factor. Some bacteria possess specific virulence factors that enhance their ability to infect and cause severe illnesses.
2. Antibiotic resistance: Bacteria that have developed resistance to commonly used antibiotics can thrive in healthcare settings where antibiotics are frequently used, making them more difficult to treat.
3. Environmental survivability: Bacteria that can survive in the environment for extended periods, such as on surfaces or in the air, have a higher chance of spreading and causing infections in healthcare settings.
The number one thing we can do to prevent healthcare-associated infections is to practice strict infection control measures, including proper hand hygiene, sterilization of medical equipment, and adherence to isolation protocols.
Two mechanisms bacteria use to resist the action of antibiotics are:1. Efflux pumps: Bacteria can have specialized pumps that actively remove antibiotics from their cells, reducing the concentration of the drug inside and making it less effective.
2. Enzymatic inactivation: Bacteria can produce enzymes that modify or degrade antibiotics, rendering them ineffective against the bacterial target.
Two ways bacteria may acquire antibiotic resistance genes are:1. Horizontal gene transfer: Bacteria can exchange genetic material through mechanisms such as conjugation, transformation, or transduction. This allows them to acquire resistance genes from other bacteria, even from different species.
2. Mutation: Bacteria can undergo genetic mutations that confer resistance to antibiotics. These mutations can occur spontaneously and provide a survival advantage in the presence of antibiotics.
To decrease the threat of antibiotic-resistant bacteria, society can take the following steps:1. Promote responsible antibiotic use: Educate healthcare professionals and the public about appropriate antibiotic use, including completing prescribed courses and avoiding unnecessary antibiotic prescriptions.
2. Enhance surveillance and diagnostics: Strengthen surveillance systems to monitor antibiotic resistance patterns and improve diagnostic techniques for rapid identification of resistant bacteria.
3. Develop new antibiotics and alternative treatments: Encourage research and development of new antibiotics, as well as alternative therapies such as phage therapy and immunotherapies, to combat antibiotic resistance.
4. Implement infection control measures: Strictly enforce infection control practices in healthcare settings to minimize the spread of antibiotic-resistant bacteria.
5. Foster global collaboration: Facilitate international cooperation and information sharing to address antibiotic resistance on a global scale, including the development of harmonized guidelines and policies.
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Will give brainliest !!! On an alien world you find something that grows it gets warmer overtime and has an organized structure. You have to determine whether it is living or not.
Answer:
look for any neuro responses by stimulating the alien subject to responde the stimulations
Explanation:
1. A _________ is formed when an _________ object blocks the path of light
2. A mirror works by __________the light that hits
Answer:
1.A _shadow_ is formed when an _ transparent _ object blocks the path of light
2. A mirror works by _reflecting_the light that hits
Explanation:
1. A shadow is made when an object blocks light. The object must be opaque or translucent to make a shadow. A transparent object will not make any shadow, as light will pass straight through it.
2.When photons — rays of light — coming from an object (your smiling face, for example) strike the smooth surface of a mirror, they bounce back at the same angle. Your eyes see these reflected photons as a mirror image.
Hope it helps you
Do most mammals have adaptations for internal fertilization and internal development of the fetus or internal fertilization and external development of the fetus?
Answer:
internally
Explanation:
In mammals, fertilization takes place internally in the protected environment of the ampulla of the oviduct, as opposed to external fertilization where sperm and egg meet outside the parent's body (e.g., as in fish, reptiles, amphibians and invertebrates).
when a woman stops ovulating and becomes incapable of reproduction, she experiences _____.
Answer:
Menopause
Explanation:
When a woman's ovaries stop producing eggs, this is called menopause. This also means that the menstrual period will cease.
In unit 4, you learned about the executive branch. First, identify which executive branch and bureaucratic agencies might be involved in the work to combat climate change. Second, explain how climate change might constitute a collective action problem, which you learned about in unit 1, and how it can be difficult to encourage individuals to fulfill a social responsibility of this type.
The Executive Branch was covered in Unit 4. Identify the executive branch and bureaucratic organizations that may be involved in the fight against climate change first.
A government agency or for-profit company that has a rigidly enforced chain of command and standardized operational processes is said to be bureaucratic. In both the public and private sectors, it is an administrative structure that is based on hierarchy, policies, and regulations. Is called bureaucratic.
Climate change, as it is commonly understood, is the continual rise in the average global temperature and its effects on the planet's climate system. In a broader sense, climate change also refers to past, significant shifts in Earth's climate.
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glipizide is not beneficial in type diabetics as it insulin secretion from cells?
The major effect of the drug appears to be mediated by its alteration of insulin sensitivity, but glipizide also causes a sustained increase in glucose-stimulated insulin secretion in most patients.
The INS gene in humans encodes insulin, a peptide hormone generated by beta cells of the pancreatic islets. It is believed to be the body's primary anabolic hormone. It promotes the absorption of glucose into the fat, skeletal muscle, and liver cells from the bloodstream, which controls how proteins, lipids, and carbs are digested. Depending on the tissue, these tissues transform the ingested glucose into triglycerides, glycogen (through glycogenesis), or, in the case of the liver, both (by lipogenesis). By having high blood insulin levels, the liver's ability to produce and secrete glucose is severely restricted. The production of proteins by numerous organs is likewise influenced by insulin movement.
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Human beings are responsible for the conservation of the environment. Justify
the statement.
Answer:
because of the following ways
Explanation:
1)because they protect plants
2)because they protect animals
3)because they are starting to use less vehicles
4)because they lessened the use of industrial vehicles
Does DNA replication begin at one end and proceeds to the other? (Yes or No question)
Answer:The correct answer is No
Explanation:
The three particles that make up atoms are
Answer:
electrons, protons, neutrons
Explanation:
Answer:
Protons, Electrons, Neutrons
Explanation:
Protons and neutrons are in the center of the atom, making up the nucleus
and...
Electrons surround the nucleus (in cloud or ring form)
Protons: are positively charged
*Protons give the element its name, therefore if there is a change in protons then it is a new element
Electrons: are negatively charged
Neutrons: are neutral and not charged
*Protons and Neutrons give the atom its mass
*If the mass of the same element changes it is because of the neutrons and it called an isotope
There are many models to show you how an atom looks...
Plum Pudding Model, The Nuclear Model (I like to call it the jimmy neutron model because that's what the symbol looks like), Planetary Model, and Quantum Model
*The last two models (Planetary and Quantum) are used more in science class
*The Quantum Model (made by Erwin Schrodinger) is widely accepted and it is the most accurate model since 1926
*The Planetary Model (by Niels Bohr) is used in science class to help you see how electrons are on energy levels and how they move when they are " excited" or absorbs energy and when they lose energy
Describe the relationship between mutations, alleles, variation, natural selection, and chance.
Natural selection is where positive traits survive more, allowing those to become more common. Mutation is where radioactivity changes genes in a random way. Natural selection allows positive mutation to become more common. Adaptation is where natural selection works for a species specifically more a new habitat.
One important way in which the flow of energy through ecosystems is different from the cycle of matter
Explanation:
As energy moves through an ecosystem, it changes form, but no new energy is created. Similarly, as matter cycles within an ecosystem, atoms are rearranged into various molecules, but no new matter is created. So, during all ecosystem processes, energy and matter are conserved.
Genes turn on or off to regulate the activity of :
a. differentiation
b. RNA
c. mutation
d. multifactorial disorders
Option c is Correct. To control the action of mutation, genes are switched on and off.
Genes can be activated and inactivated by each cell. This procedure, known as gene regulation, is crucial to healthy growth. Genes are switched on and off in various ways during development to give a brain cell, for instance, a different appearance and behavior from a liver cell or a muscle cell.
Cells can respond swiftly to environmental changes thanks to gene regulation. RNA switches, also known as riboswitches, control which genes are activated and deactivated in a manner like to a light switch. Although it might seem like a straightforward operation, biologists have been baffled by the inner workings of these switches for decades.
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what type of circulatory system is the most efficient in terms of nutrient delivery, waste removal, and meeting metabolic needs of organs?
The closed circulatory system is the most efficient circulatory system in terms of nutrient delivery, waste removal, and meeting the metabolic needs of organs, as it allows for faster and more controlled delivery of nutrients and oxygen to specific areas.
The most efficient circulatory system in terms of nutrient delivery, waste removal, and meeting the metabolic needs of organs is the closed circulatory system, also known as the cardiovascular system. This system consists of a muscular pump (the heart) and a network of vessels (arteries, veins, and capillaries) that transport blood throughout the body.
The closed circulatory system allows for faster and more controlled delivery of nutrients to the organs and tissues because blood can be directed to specific areas. The blood is also under pressure, which allows for the efficient delivery of oxygen and nutrients to the organs. Waste products can be quickly removed from the blood through the capillaries and transported to the kidneys and liver for processing.
In contrast, open circulatory systems, found in invertebrates such as insects, are less efficient because the blood is not enclosed in vessels, so nutrient delivery and waste removal are slower and less controlled.
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the bacteria in a colony are unable to perform conjugation.how would this hurt the bacterial colony's chance for survival.
Answer:
Answer: Genetically similar
Explanation:
Conjugation can be defined as the process by which bacteria transfers the genetic material through a tube like material between two cells.
This method of gene transfer provides genetic variability to the bacterial cell by giving bacteria antibiotic resistant gene and making it an antibiotic resistant bacterial cell.
So, if the cell is unable to perform conjugation, there will be no genetic variability in the bacterial cell.
Explanation: