A bag contains 3 red marbles, 6 blue marbles and 4 green marbles. If three marbles are drawn out of the bag, what is the probability, to the nearest 1000th, that all three marbles drawn will be blue?
Answers
The probability, to the nearest 1000th, of drawing all three blue marbles from the bag is 6.2%.
To calculate the probability of drawing all three blue marbles, we need to consider the total number of marbles in the bag and the number of blue marbles available for selection.
The total number of marbles in the bag is 3 (red) + 6 (blue) + 4 (green) = 13 marbles.
The probability of drawing the first blue marble is 6 blue marbles out of 13 total marbles, so the probability is 6/13.
After drawing the first blue marble, there are 5 blue marbles left out of the remaining 12 marbles. Thus, the probability of drawing the second blue marble is 5/12.
Similarly, after drawing the first and second blue marbles, there are 4 blue marbles left out of the remaining 11 marbles. Therefore, the probability of drawing the third blue marble is 4/11.
To find the probability of all three events occurring together (i.e., drawing three blue marbles in succession), we multiply the individual probabilities:
P(3 blue marbles) = (6/13) * (5/12) * (4/11) ≈ 0.062 (rounded to the nearest 1000th)
Therefore, the probability, to the nearest 1000th, of drawing all three blue marbles from the bag is approximately 0.062 or 6.2%.
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Related Questions
7. Explain what makes proteins the most diverse
macromolecule.
8. List which macromolecule is not obtained from our
food and where we do get it from.
Answers
Explanation:
A protein is a linear molecule comprised of amino acids.The sequence of a protein's amino acids is determined by the sequence of bases in the DNA coding for the synthesis of this protein.
***HELP!!!***How would an increase in precipitation most likely affect organisms in a terrestrial ecosystem?
Atmospheric carbon would increase
Decomposition would decrease
Primary production would increase
Water in reservoirs would decrease
Answers
An increase in precipitation in a terrestrial ecosystem would most likely have a positive effect on organisms. This is because an increase in rainfall would provide more water, which is essential for plants and animals to survive.
With more water available, primary production would increase, as plants would have more resources to grow and produce food. This, in turn, would benefit herbivores, which rely on plants for sustenance. Additionally, an increase in precipitation can help to reduce soil erosion and increase soil fertility. However, it is important to note that an increase in precipitation could also lead to flooding, which could have negative effects on certain organisms and their habitats. Overall, an increase in precipitation would likely have a beneficial impact on a terrestrial ecosystem.
An increase in precipitation would most likely affect organisms in a terrestrial ecosystem by increasing primary production. More precipitation provides additional water to plants, which helps them grow and produce more biomass. This leads to an increase in the availability of resources for herbivores and, ultimately, higher trophic levels. As a result, the overall productivity and energy flow within the ecosystem increase. While increased precipitation can have various effects on the ecosystem, the most direct impact is on primary production.
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how common are mutations during dna replication? a. about 5 nucleotides in 6.5 billion are changed during each replication. b. about 50 nucleotides in 6.5 billion are changed during each replication. c. no nucleotides are changed during each replication. d. about 5,000 nucleotides in 6.5 billion are changed during each replication. e. about 500 nucleotides in 6.5 billion are changed during each replication.
Answers
The mutations are common in the sense that about 5 nucleotides in 6.5 billion are changed during each replication (Option a).
What is the mutation rate?The mutation rate refers to the number of nucleotide changes that emerge at each replication cycle of the DNA molecule, which varies between different types of organisms, especially when comparing prokaryotes and eukaryotes.
Therefore, with this data, we can see that the mutation rate is the number of alterations in the DNA molecule after replication and the number is variable between different groups of species in nature.
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What is the first 20 element
Answers
Answer:
1. H - Hydrogen
2. He - Helium
3. Li - Lithium
4. Be - Beryllium
5. B - Boron
6. C - Carbon
7. N - Nitrogen
8. O - Oxygen
9. F - Fluorine
10. Ne - Neon
11. Na - Sodium
12. Mg - Magnesium
13. Al - Aluminum
14. Si - Silicon
15. P - Phosphorus
16. S - Sulfur
17. Cl - Chlorine
18. Ar - Argon
19. K - Potassium
20. Ca - Calcium
Explain the advantages of red blood cells passing through a capillary one at a time.
Answers
Red blood cells are the smallest cells in the body. So, they can easily diffuse through a capillary and facilitate oxygen transport.
What are red blood cells?Red bloods cells (RBCs), also called as erythrocytes are the chief cells present in the blood stream.
Red blood cells contain a red coloured pigment called haemoglobin. This pigment has affinity for oxygen and thus is important for oxygen exchange in the body.
Mammalian Red blood cells are biconcave, disc shaped and lack nucleus (exception frog).
Red blood cells are produced in the bone marrow and are degraded in spleen.
Red blood cells have an average life span of 120 days in the circulatory system.
The number of red blood cells is little higher in males as compared to females. Low Red blood cell count in the body leads to a medical condition called anemia.
Therefore, Red blood cells are important for transport of gases in the body.
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Cyanide poisoning occurs when cyanide, a cellular toxin, disrupts the cell's ability to complete cellular respiration. This ultimately causes the cell to be unable to produce enough ATP for survival.
Which labeled structure is the most likely target of cyanide poisoning in the cell?
Choose 1 answer:
(Choice A)
A
Structure A
(Choice B)
B
Structure B
(Choice C)
C
Structure C
(Choice D)
D
Structure D
Answers
Unable to produce ATP-> no energy-> powerhouse of cell destroyed-> mitochondrion (B)
In case of cyanide poisoning, the cell will unable to produce ATP, no energy, the cell will be destroyed . Hence option B is correct.
What Is Cyanide?
It is carbon-nitrogen (CN) molecule, some are not deadly but some are poisonous such as sodium cyanide, potassium cyanide, hydrogen cyanide etc.
The deadly cyanide when present in a cell, a cellular toxin which degrade the cell and destroy its ability to complete cellular respiration.
The harmless cyanide present in nitriles applied in the field of pharmaceuticals as they do not release the metabolic poison such as CN- ion.
Cyanide ion play as an irreversible enzyme inhibitor which prevent mode of action of cytochrome C oxidase from doing its job so that transport electrons to oxygen in the electron transport chain is inhibited and interrupt of aerobic cellular respiration.
So that mitochondria will be unable to produce the energy carrier adenosine triphosphate in absence of oxygen.
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True or false:unconformities can be found at the surface
Answers
Explaining: they are typically buried on the surface
water takes up ______ space as a liquid than it does as solid
Answers
Water takes less space as a liquid than it does as solid. As a solid, water has more volume than as a liquid. The water molecules in the solid are an open cage-like form by the hydrogen bonds in the water.
Which occupies more room, a solid or a liquid?With the exception of water, most liquids contain particles that are larger while they are liquid than when they are solid. Liquids allow their constituent particles to move and slide past one another.
What is the name for both solid and liquid?The term "non-Newtonian fluids" applies to them. The amusing name of this material derives from the Dr. Seuss novel Bartholomew and the Oobleck.
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What would be an outcome of a paradigm shift in science?
A) We would need to reject our hypothesis while going through the process of the scientific method.
B) Many fields of science would have to rethink their understanding of the world.
C) Temperatures in the arctic circle would rise, causing the sea ice to melt.
D) We would have to give up using the scientific method since the shift would show we have been wrong in the past.
Answers
B) Many fields of science would have to rethink their understanding of the world.
A paradigm shift in science refers to a fundamental change in the underlying assumptions, theories, and methodologies within a particular scientific field. It represents a significant departure from the existing scientific framework and often leads to a reevaluation of our understanding of the world. Such a shift has far-reaching implications, influencing multiple disciplines and challenging established beliefs.
When a paradigm shift occurs, it prompts scientists to question prevailing theories and reexamine the evidence in light of new perspectives. This process can be disruptive as it requires a reevaluation of existing hypotheses and experimental methods.
In some cases, hypotheses that were once considered valid may be rejected, leading to a reassessment of the scientific method itself. However, the rejection of a hypothesis does not imply the abandonment of the scientific method; rather, it demonstrates the flexibility and self-correcting nature of science.
The impact of a paradigm shift extends beyond a single field of study. It often necessitates interdisciplinary collaboration and encourages scientists from different disciplines to engage in a broader dialogue.
As new ideas emerge, the boundaries between fields blur, leading to the integration of knowledge from various scientific domains. This interdisciplinary approach fosters innovation, allowing for the development of novel theories and the discovery of new phenomena.
A paradigm shift in science can revolutionize our understanding of the world by challenging deeply ingrained assumptions and providing fresh perspectives. It encourages scientists to think critically, question established beliefs, and explore uncharted territories.
While the process may be disruptive, it ultimately drives scientific progress, leading to advancements that reshape our knowledge and pave the way for new discoveries.
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The peptide interbridge crosslinking between peptidoglycan layers is found ONLY in the cell walls of
Answers
The peptide interbridge crosslinking between peptidoglycan layers is found ONLY in the cell walls of Gram-positive bacteria. The cell wall of bacteria is made up of peptidoglycan layers that provide a protective barrier around the cell.
The peptide interbridge crosslinking between peptidoglycan layers is found ONLY in the cell walls of Gram-positive bacteria. The cell wall of bacteria is made up of peptidoglycan layers that provide a protective barrier around the cell. The peptidoglycan layer is a polymer made up of alternating N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) residues. The NAM residues are cross-linked by short peptides that form a tight network around the cell wall.The structure of peptidoglycan layers differs between Gram-positive and Gram-negative bacteria. The peptidoglycan layers of Gram-positive bacteria are thick and multi-layered, while those of Gram-negative bacteria are thinner and single-layered. The thick peptidoglycan layer of Gram-positive bacteria contains a unique interbridge cross-linking peptide that links two adjacent peptidoglycan chains. This interbridge peptide is composed of five amino acids, which form a covalent bond between the two peptidoglycan chains. The interbridge peptide gives the cell wall of Gram-positive bacteria additional strength and rigidity, making it more resistant to osmotic pressure. This unique feature is absent in Gram-negative bacteria, which have a thinner peptidoglycan layer and no interbridge peptide.
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It is believed that neutral mutations (mutations that have neither a positive or negative effect) accumulate at a exponential rate over time.
True
False
Answers
The statement 'neutral mutations (mutations that have neither a positive or negative effect) accumulate at an exponential rate over time' is False.
What is a mutation?A mutation is any alteration in the nucleotide (DNA) sequence of an organism's genome.
Mutations can be neutral, beneficial, or deleterious depending on the environment in which an organism lives.
In conclusion, the statement 'neutral mutations (mutations that have neither a positive or negative effect) accumulate at an exponential rate over time' is False.
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dna sequences from virtually any living organism could be inserted into a bacterium and the bacterium would be able to use the sequences to make the same proteins that the original organism did. in what way does this provide evidence for evolution?
Answers
The ability to insert DNA sequences from one organism into another, such as a bacterium, provides evidence for evolution in the sense that it demonstrates the underlying genetic relatedness of all living organisms.
This technique, known as recombinant DNA technology, is based on the idea that the genetic code is universal, meaning that the same basic mechanisms for protein synthesis are used by all living things. By using this technique, scientists can transfer genetic information between different organisms and observe how the information is expressed. This allows them to study the similarities and differences in genetic code among different organisms, providing evidence for their evolutionary relationships.
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How does charles darwin fit in to the story of the piltdown forgery?
Answers
The Piltdown forgery was a notorious hoax in the field of anthropology, where a supposed fossil of an early human ancestor was found in England in 1912.
The hoax went undiscovered until the 1950s, and it was eventually revealed that the fossil was a composite of several different species, including a human skull and an orangutan jaw.
Charles Darwin's theories on evolution played a significant role in the Piltdown forgery. The hoax was created during a time when the debate over human evolution was highly contentious,
and some scientists were eager to find evidence of an early human ancestor. The Piltdown forgery was seen as
supporting evidence for the idea that human evolution had taken place in Europe, rather than in Africa, as Darwin had suggested.
The Piltdown forgery was also a reflection of the cultural and social attitudes of the time. British society at the turn of the century was deeply invested in the idea of British exceptionalism
and the idea that the British race was superior to others. The forgery played into this idea, as it suggested that the "missing link" in human evolution had been found in England.
In conclusion, Charles Darwin's theories on evolution played a role in the Piltdown forgery, as the hoax was created in response to the debates surrounding human evolution in the early 20th century.
The forgery was also a reflection of the cultural and social attitudes of the time, which placed great value on British exceptionalism and the idea of British superiority.
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A and b are linked genes. in a study of 100 offspring, 94 had parental genotypes for a and b, while 6 were recombinants. a and b are _____ map units apart.
Answers
In the study, out of 100 offspring, 94 had parental genotypes for genes A and B, while 6 were recombinants. This means that 6% of the offspring had a combination of genes that differed from the parental genotypes.
Since recombination occurs when genes are separated during the formation of sex cells, we can use the percentage of recombinants to estimate the distance between genes A and B.
One map unit, also known as one centimorgan (cM), represents a 1% chance of recombination occurring between two genes. Therefore, if 6% of the offspring are recombinants, it suggests that genes A and B are 6 map units apart on the genetic map.
In conclusion, based on the study of 100 offspring, where 94 had parental genotypes for genes A and B and 6 were recombinants, it can be estimated that genes A and B are approximately 6 map units apart.
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PLEASE HELP ME!!
Which plant group is one of the oldest on Earth?
daisies
ferns
sequoia trees
orange trees
Answers
Answer:ferns
Explanation:
Hope this helps
Answer:
sequoia trees.
Explanation:
they are also known as "red woods" they are the giant red barked trees in different parts of california, and they are hundreds and thousands of years old.
Sallwaler
5. What is produced when an acid is mixed with water?
A- oxygen ions
B- hydroxide ions
C- oxygen atoms
D- hydrogen ions
Answers
Answer:
Answer
Hydrogen ions
Explanation:Answer:
hydrogen ion....................
What accounts for 30-35% for the environmental causes of cancer?
Answers
Answer:
Lifestyle factors (nutrition, tobacco use, physical activity)
Explanation:
The cdc said
What makes cells able to perform a variety of activities?
Responses
Proteins,A
Proteins and Nucleus,B
Nucleus,C
All OrganellesD
20 pts
Answers
Answer:
d) All Organelles
Explanation:
All Organelles makes the cell able to perform a variety of activities. Hence, option (d) is the correct answer.
which part of the eye contain receptor cells?
Answers
retina
hope its helps
have a good day
In the Florida Everglades, Burmese pythons are an invasive species. They were introduced into southern Florida in 1992. These pythons feed on many of the native Florida species, establishing the pythons as the top predator in the environment. By the year 2000, their population had increased dramatically.
Figures 1 and 2 display data collected by ecologists studying the results of the Burmese python invasion. Figure 1 shows counts of animals collected from nighttime road surveys in southern Florida, which are used to estimate population size. Figure 2 shows data collected from mosquitoes captured from the wild. DNA sequencing was used to identify the species of blood that the mosquitoes had in their stomachs, identifying various hosts used by the mosquitoes.
In 1996, the native Culex cedecei mosquitoes in southern Florida preferentially took blood meals from white-tailed deer and raccoons. It was predicted that changes in host population size would alter these host preferences. Additionally, it is known that cotton rats are often infected by the Everglades virus, which normally exists in animals, but is capable of infecting humans. Ecologists predict that increased feeding on cotton rats by C. cedecei may significantly increase the tendency of this virus to infect humans.
Which of the following most accurately explains an impact of Burmese pythons on the Everglades community in southern Florida using the data provided?
A - Python parasitism has reduced the population of white-tailed deer and raccoons.
B - Python predation has caused a trophic cascade that changed the mosquitoes' niche.
C - Pythons have a mutual symbiosis with cotton rats, allowing their population to increase.
D - Intraspecific competition for food between white-tailed deer and raccoons has increased due to pythons.
Answers
Answer:
B - Python predation has caused a trophic cascade that changed the mosquitoes' niche.
Explanation:
The passage infers that the predation by the Burmese pythons has reduced the population of the animals in Southern Florida thus making the Culex cedecei mosquito to have a reduced number of options to feed from. This is stressed when the author notes that these mosquitoes are now feeding on cotton rats which harbor the Everglades virus that also have the potentials of being transmitted to humans.
Summarily, the passage is saying that the invasion by the Burmese python has changed the niche of most animals including the mosquitoes in the Southern Florida's wild.
Why is volume measured in both cubic meters or cubic centimeters and liters
Answers
Answer:
The base units of length and volume are linked in the metric system. By definition, a liter is equal to the volume of a cube exactly 10 cm tall, 10 cm long, and 10 cm wide. Because the volume of this cube is 1000 cubic centimeters and a liter contains 1000 milliliters, 1 milliliter is equivalent to 1 cubic centimeter.
why is a soda exploding/fizzing a physical change?
Answers
Answer:The fizzing of soda is a physical change that involves the release of gaseous carbon dioxide. During fizzing of a soda, you can see bubbles of carbon dioxide in the soda rise to the top. A bottle of soda doesn't fizz when it is closed because the pressure is higher, and keeps the carbon dioxide dissolved in the liquid.
Explanation:
In a radio,
energy is transformed
A.sound
B.mechanical
C.electrical
Answers
Answer:
Answer is Electrical
Explanation:
electrical bro
If you had to choose a singular source to get your energy from, what would you choose? Why?What are two benefits and downsides of your choice, and how would they impact vou?
Answers
If I had to choose a singular source to get my energy from, I would choose solar energy. It is renewable, abundant, and environmentally friendly.
Solar energy offers several benefits as a singular energy source. Firstly, it is renewable and widely available, harnessing the power of the sun's rays. This means it can be consistently accessed without depleting natural resources. Secondly, solar energy is environmentally friendly, producing clean electricity without greenhouse gas emissions or air pollution. It helps combat climate change and reduces reliance on fossil fuels. However, there are also downsides to relying solely on solar energy. One downside is its intermittent nature. Solar power generation depends on sunlight, so it is not consistently available during nighttime or cloudy periods. This necessitates energy storage systems or backup power sources. Another downside is the high initial installation cost. Solar panels and associated infrastructure can be expensive, although costs have been decreasing over time. These benefits and downsides would impact me as an individual. I would have access to clean, renewable energy, contributing to sustainability and reducing my carbon footprint. However, the intermittency of solar energy may require additional planning and investment in energy storage or backup systems, and the upfront costs could pose a financial challenge initially. Nonetheless, the long-term benefits and environmental advantages make solar energy an appealing choice.
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The diagram shows an unfertilized female sex cell at different locations within the reproductive system. At which location can it correctly be termed an oocyte
Answers
Answer:
An oocyte is an immature egg cell that is produced in a female fetus in the ovary during female gametogenesis. It develops to maturity from within a follicle, which is found in the outside layer of the ovaries.
Without seeing the diagram you are referring to, it is difficult to determine the exact location where an unfertilized female sex cell can be correctly termed an oocyte. However, it is likely that the correct location would be within the ovary where the oocyte is produced.
What is the function of meristems? Where are they located?
I have more 4 more questions will do separate ones :)
Answers
Answer :Its main function is to begin growth of new cells in young seedlings at the tips of roots and shoots (forming buds, among other things). The central zone is located at the meristem summit, where a small group of slowly dividing cells can be found.
Explanation: i think is the answer not sure
Someone plllsss help
Answers
Answer:
They will most likely be immune to the treatment.
Explanation:
This is the same as a viruse evolving to survive the vaccine for it.
A student run10m/s what does it means
Answers
Answer:
it means that student is running 8meters per second
Answer:
it means that the student runs 10 miles per second
Explanation:
help i will give BRAINLIST :) help me and thxxx
Answers
2. Shape: DNA- Double Helix mRNA- Single Helix
Nitrogen Bases: DNA- ATCG mRNA- AUCG
Sugars: DNA- Deoxyribose mRNA- Ribose
Location: DNA- nucleus mRNA- made in nucleus moves to the ribosome into cytoplasm
transduction refers to the . group of answer choices disappearance of visual stimuli. translation of one form of energy to another. transmission of sensory signals to the cortex. perception of lights.
Answers
Transduction refers to the translation of one form of energy to another.
What is Transduction?Transduction is the method of converting a physical energy stimulus into an electrical signal that can be transmitted through the nervous system. It is the process of converting one form of energy into another, specifically, converting physical stimuli into an electrical signal that can be transported via the nervous system.
Transduction allows sensory neurons to detect energy, such as light or sound waves, and convert it into an electrical signal that is then transported to the central nervous system. This electrical signal can then be interpreted by the brain, allowing us to detect and perceive the world around us.
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