Why would gene duplication events, such as those seen in the hox gene complex, set the stage for adaptive radiation?.
Answers
Gene duplication events, such as those seen in the hox gene complex, set the stage for adaptive radiation because they generate new copies of genes that can evolve new functions.
Adaptive radiation is a process that occurs when a lineage produces a vast array of descendant species, each with a unique morphology, physiology, and behavior that enables it to exploit diverse ecological niches.
An increase in the number and diversity of genes available for evolution may be a crucial factor in the emergence of adaptive radiations in many lineages.
For example, the evolution of the vertebrate skeleton and nervous system has been attributed in part to the duplication and diversification of Hox genes.
Gene duplication events, such as those seen in the hox gene complex, set the stage for adaptive radiation because they generate new copies of genes that can evolve new functions, which is thought to have been especially important in the diversification of animal body plans.
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Related Questions
computer simulations of the energy dissipation rate in a fluorescence-activated cell sorter: implications to cells.
Answers
Computer simulations of the energy dissipation rate in a fluorescence-activated cell sorter have implications for understanding how cells are affected during the sorting process.
These simulations provide insights into the potential impact of energy dissipation on cell viability, functionality, and overall health.
By accurately modeling the energy dissipation rate, researchers can gain a better understanding of the mechanical forces experienced by cells, which can help optimize sorting protocols and minimize any potential damage to the cells.
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Describe the origin and fiber composition of (1) ventral and dorsal roots, (2) the spinal nerve proper, and (3) ventral and dorsal rami.
Answers
Answer:
A dorsal root (sensory or afferent) and a ventral root (motor or efferent) originate from the medulla. They unite near the intervertebral foramen, forming the spinal nerve. The nerves emerge from the intervertebral foramen, dividing into ventral and dorsal ramus.
Explanation:
The nerve is a set of nerve fibers perceptible to the naked eye and wrapped in connective tissue. They are made up of roots, trunks and nerve branches (some of them come together and form plexuses).The spinal nerve originate from the spinal cord in the form of 31 pairs: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal. They emerge from the spinal cord through two roots: dorsal roots, made up of sensory fibers that come from the sensory neurons of the spinal ganglion and that penetrate the spinal cord through the posterolateral and ventral root, made up of motor fibers, coming from the motor neurons of the anterior horn and visceral of the lateral horn of the gray matter of the spinal cord. This root exits the spinal cord through the anterolateral groove, then joins the posterior root to form the spinal nerve, which exits the vertebral canal through the corresponding intervertebral foramen.Each spinal nerve, after leaving the vertebral canal, emits two primary ramus: the dorsal ramus, contains somatic and visceral fibers that go to the skin and muscles of the back and the ventral ramus, which supplies the ventrolateral surface of the skin, body wall and extremities.
What was the purpose of using CRISPR in the Anopheles gambiae mosquitoes experiment?Group of answer choicesTo find a way to lower mosquito populations in the wild and get rid of malaria in the future.The purpose of this experiment was to create a new disease like malaria.To find a way to lower mosquito populations in the wild and increase cases of malaria in the future.To find a way to increase mosquito populations in the wild and get rid of malaria in the future.
Answers
To find a way to lower mosquito populations in the wild and increase cases of malaria in the future the purpose of using CRISPR in the Anopheles gambiae mosquitoes experiment.
Why do humans get malaria?The malaria parasite, which is spread by infected mosquitoes, multiplies inside red blood cells after entering the human bloodstream. After a few days, these cells burst, infecting other red blood cells and resulting in symptoms such as a severe headache, nausea, vomiting, fever, and coma.
What causes malaria largely?A plasmodium-genus single-celled parasite, which causes malaria. Most frequently, mosquito bites are the means of parasite transmission to people.
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This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Val-Asp-Ser?
Answers
The template strand of DNA has the nucleotides CAA-CTA-TCG in order.
The correct option is B.
What are codons?Three DNA or RNA nucleotides make form a codon. These codons are constructed to code for a procedure such as protein synthesis or the creation of stop signal codons. For various bodily processes, different amino acids are required. The Ala, Gly, Pro, Thr, and Val codons are four.
What is the function of codons?Any of the 64 different DNA triplet sequences that either encode information for the creation of a particular amino acid or act as a stop signal to end translation (protein synthesis). You can code for more information the more bases there are per codon. Since there are only 22 distinct amino acids, we require at least 3 bases for each codon.
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The complete question is -
This table shows the codons found in messenger RNA. Using this information, what sequence of nucleotides in the template strand of DNA could code for the polypeptide sequence Val-Asp-Ser?
A- GUU-GAU-AGC
B- CAA-CTA-TCG
C- GTT-GAT-AGC
D- CAA-CUA-UCG
What provides short term quick energy for the body?
Answers
_____ are groups of atoms that occur within molecules and confer specific chemical properties to those molecules.
Answers
Carbons are groups of atoms that occur within molecules and confer specific chemical properties to those molecules.
Write the characteristics of the Carbon atom.The carbon atom's primary features are as follows:
The carbon atom's valency is 4. With other atoms, carbon can form single, double, and triple bonds. By joining forces with other carbon atoms and other elements, it can form straight chains, branching chains, and cyclic compounds. Functional groups are collections of atoms that exist within molecules and provide those compounds with particular chemical characteristics. The "carbon backbone" of macromolecules is where we discover them. Coal, which is mostly composed of carbon, is used as a fuel. Graphite is used for electrodes, dry cells, high-temperature crucibles, pencil tips, and lubricants. Due to their extreme hardness, diamonds are also employed in the industry for cutting, drilling, grinding, and polishing.
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Do cells respond to every signal? Explain.
Answers
Answer:
No, they only respond to a signal if they have a receptor that can receive the signal.
Explanation:
One of the largest and oldest organisms on earth is located in fish lake and nation, forest, in utah.pando is an 80,000 year old grove of aspen trees that cover 100 acres. Although it looks like a forest, DNA analysis of several of the trees has confirmed it is really just one huge organism. Therefore the trees must have been reproduced
Answers
Pando aspen grove in Utah is an immense, genetically identical organism consisting of interconnected aspen trees spanning 100 acres and estimated to be around 80,000 years old.
One of the largest and oldest organisms on Earth, known as Pando, is located in Fish Lake National Forest in Utah. Pando aspen grove is an 80,000-year-old grove of aspen trees that covers approximately 100 acres. While it appears to be a forest, DNA analysis of several of the trees has revealed that they are genetically identical, confirming that Pando is actually one immense organism. The trees of Pando have been reproduced through a process called vegetative reproduction, where new shoots and stems emerge from the existing root system. This unique reproductive strategy has allowed Pando to persist and expand over thousands of years, making it a remarkable example of the interconnectedness and longevity of living organisms.For more questions on Pando aspen grove:
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Question 1 of 10
Which statement best describes the limits of science?
A. Science cannot answer quations about what people should do.
B. Science cannot answer questions about the natural world.
C. Science can answer any question.
D. Science can answer only mathematical questions.
SUBMIT
Answers
The right answer is D . A question about what individuals or peoples should do cannot be answered by science.
Science is a system that uses information derived through observation, experimentation, and other techniques to attempt to comprehend natural occurrences. Because of this, it has been able to learn about practically all elements of the world and find answers to all kinds of questions, including challenging or complex ones, through research and the scientific method. Science, however, cannot provide answers to concerns about characteristics that cannot be observed, tested, or that depend on perception because it is based on experimentation and observation.
So, it cannot instruct individuals what to do or how to act, even though it is acceptable and contains all the known facts.
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NEED THIS ASAP!!!! Define: Meiosis, Sister chromosomes, homologous chromosomes
Answers
Answer:
meiosis- a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores.
sister chromosomes- A sister chromatid refers to the identical copies (chromatids) formed by the DNA replication of a chromosome, with both copies joined together by a common centromere.
homologous chromosomes- Homologous chromosomes are two pieces of DNA within a diploid organism which carry the same genes, one from each parental source. Each parent provides the same 23 chromosomes, which encode the same genes.
Answer:
Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. These cells are our sex cells – sperm in males, eggs in females. ... These four daughter cells only have half the number of chromosome
A sister chromatid refers to the identical copies formed by the DNA replication of a chromosome, with both copies joined together by a common centromere. In other words, a sister chromatid may also be said to be 'one-half' of the duplicated chromosome. A pair of sister chromatids is called a dyad
homology is similarity due to shared ancestry between a pair of structures or genes in different taxa.
Chromosomes are the things that make organisms what they are. They carry all of the information used to help a cell grow, thrive, and reproduce. Chromosomes are made up of DNA. Segments of DNA in specific patterns are called genes. You will find the chromosomes and genetic material in the nucleus of a cell.
Explanation:
hopefully this answers your question but if not then forgive me pwease :3
mining leads to a reduction in __ because it destroys __ by uprooting forests and demolishing mountainsides
Answers
Mining leads to a reduction in biodiversity because it destroys ecosystems by uprooting forests and demolishing mountainsides.
The process of mining involves extracting valuable minerals or ores from the earth's crust. To access these resources, mining operations often involve clear-cutting forests and removing topsoil, leading to the destruction of habitats for many plant and animal species. Additionally, mining activities can lead to soil erosion, pollution of water bodies, and the release of harmful chemicals into the environment. These impacts on biodiversity can have long-term consequences, including the loss of species, disruption of ecosystems, and imbalance in natural food chains. In summary, mining activities contribute to the reduction in biodiversity through the destruction of habitats and ecosystems.For more questions on biodiversity
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What is the best method for describing and mapping terrestrial biomes? Biome Metric System (BMS) There's no standardized method, so the best method is to evaluate climatic conditions and the dominant form of vegetation International System of Biomes (ISB) Universal Biome System (UBS) There's no standardized method, so the best method is to evaluate human uses and valuation of the area
Answers
The best method for describing and mapping terrestrial biomes typically involves evaluating climatic conditions and the dominant form of vegetation. This approach is widely used and forms the basis for various classification systems, including the Köppen-Geiger climate classification system and the Holdridge life zone classification system. These systems consider factors such as temperature, precipitation, and vegetation types to classify and map different biomes.
While there is no universally standardized method for describing and mapping biomes, the evaluation of climatic conditions and vegetation provides a robust and scientifically grounded approach. It allows for the identification of distinct biomes based on their ecological characteristics and helps understand the distribution of different biomes across the Earth's surface.
Other approaches, such as the International System of Biomes (ISB) or Universal Biome System (UBS), may incorporate additional factors or emphasize human uses and valuation of the area. These approaches may be more focused on human perspectives or conservation priorities rather than purely ecological considerations. However, when it comes to a scientific understanding of biomes, evaluating climatic conditions and vegetation remain key factors.
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process in which rna is produced by using a dna template
Answers
Transcription is the process in which a gene's DNA sequence is copied (transcribed) to make an RNA molecule. RNA polymerase is the main transcription enzyme
What do these results suggest about environmental spawners by 2100: a. Their realized niche will expand and their distribution will be unchanged b. Their realized niche will expand, and their distribution will shift north C. Their realized niche will be unchanged, but their distribution will shift north O d. Their realized niche and their distribution will be unchanged
Answers
The results suggest that by 2100, environmental spawners will experience an expansion in their realized niche, and their distribution will shift northwards.
The results indicate that environmental spawners, which are organisms that rely on specific environmental conditions for reproduction, will undergo changes in both their realized niche and their distribution by 2100. The realized niche refers to the set of environmental conditions under which a species can persist and reproduce successfully. The expansion of the realized niche implies that these organisms will be able to adapt and thrive in a wider range of environmental conditions compared to their current niche.
Additionally, the results suggest that the distribution of environmental spawners will shift northwards. This means that these organisms will increasingly occupy habitats in higher latitudes or locations closer to the Earth's poles. The northward shift can be attributed to various factors, such as climate change and alterations in environmental conditions. As temperatures rise globally, suitable habitats for environmental spawners may become more prevalent in northern regions, leading to a shift in their distribution patterns.
In summary, the results indicate that by 2100, environmental spawners will have an expanded realized niche, enabling them to thrive in a wider range of environmental conditions. Furthermore, their distribution will shift northwards as they adapt to changing climatic conditions.
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1, describe how thermal energy/heat affects atoms within the 3 state of matter.
2, describe the process of sublimation.
3. describe the process of deposition.
4. list different phase changes might see on a jeepney/tricycle ride to school on a very cold morning
Answers
Answer:
When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. ... Solids, liquids and gases all expand when heat is added.
Explanation:
all plants carry on photosynthesis true or false
Answers
Answer:
true
Explanation:
i think
What phase of the cell cycle does DNA replicate?A. Prophase
B. Anaphase
C. Metaphase
D. Interphase
Answers
Answer:
Option - DHope it helps youanalyze the movement of carbon through the abiotic and biotic parts of the carbon cycle
Answers
The movement of carbon through the abiotic and biotic parts of the carbon cycle is the following:
In the carbon cycle, carbon is moved between the four reservoirs where it is in different states:
Atmosphere, carbon is in the form of carbon dioxide (CO2) by joining with oxygen in the form of gas.
Terrestrial biosphere, carbon is found in the elements that make up terrestrial and coastal ecosystems, in non-living organic matter, and in the soil.
Oceans, carbon is part of the hydrosphere, it is found in dissolved organic carbon, in marine organisms and in non-living matter.
The water vapor produced and released into the atmosphere also promotes gas exchange with the ocean, allowing carbon to dissolve in the water, where it is fixed by photosynthetic plankton.
Sediments: carbon is part of the geosphere, excess carbon in decomposing organic matter will accumulate and sediment in the various layers of the earth's crust, where it forms fossils, hydrocarbon deposits or reactive sediments.
During photosynthesis, green plants take CO2 from the abiotic environment and incorporate the carbon into the carbohydrates they synthesize.
Part of these carbohydrates are metabolized by the same producers in their respiration, returning carbon to the surrounding environment in the form of CO2.
That is, the return of CO2 to the atmosphere occurs when living beings oxidize food while breathing, producing CO2.
Therefore, we can conclude that the movement of carbon between the abiotic environment and biotic factors (living organisms) defines the carbon cycle.
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when replanting forested areas, lumber companies have greater success when the seedlings are:
Answers
Lumber companies have greater success when the seedlings are native to the area.
What type of seedlings have greater success when replanting forested areas?When replanting forested areas, using seedlings that are native to the area has been shown to increase the success rate of reforestation efforts. This is because native seedlings are adapted to the local climate and soil conditions, and are therefore more likely to survive and thrive. In contrast, non-native seedlings may struggle to grow and compete with native plants for resources, ultimately reducing the overall success of the reforestation effort.
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When replanting forested areas, lumber companies have greater success when the seedlings are grown in nurseries under controlled conditions that mimic their natural habitat.
The seedlings should also be genetically diverse, disease-resistant, and adapted to the local climate. Additionally, the timing of the planting should coincide with the optimal growing season, and the soil should be adequately prepared to provide the necessary nutrients for the seedlings to thrive. Careful attention should also be paid to site selection, including factors such as soil quality, slope, and water availability. Proper management practices, such as removing competing vegetation and controlling pests, can further increase the success rate of replanting efforts. Overall, a comprehensive approach that considers all of these factors can lead to successful reforestation and sustainable timber harvesting.
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which of the statements accurately describes both pleiotropy and polygenic inheritance? polygenic inheritance refers to a single gene that affects multiple traits. pleiotropy refers to the cumulative effect of two or more genes on a single trait. polygenic inheritance refers to the cumulative effect of two or more genes on a single trait. pleiotropy refers to a single gene that affects a single trait. polygenic inheritance refers to the effect of a single gene on a single trait. pleiotropy refers to a single gene that affects multiple traits. polygenic inheritance refers to the cumulative effect of two or more genes on a single trait. pleiotropy refers to a single gene that affects multiple traits.
Answers
The cumulative impact of two or more genes on a single trait is known as polygenic inheritance. Pleiotropy describes a single gene that has an impact on a variety of attributes. Thus, option d is correct
The pleiotropy defines a situation in which the effects of a single gene on various phenotypes are numerous. While, the height, skin pigmentation, hair and eye colour, as well as the production of milk and eggs, are only a few of the phenotypic traits and features shared by plants and animals with polygenic inheritance.
The regulation of numerous traits by a single gene is known as pleiotropy.
Several genes can control a trait, which is known as polygenic inheritance.
2. There are two or more genotypic outcomes in pleiotropy.
There are many different genotypic outcomes from polygenic inheritance.
3. Poleiotropy occurs when one gene influences a particular trait.
A certain characteristic is impacted by numerous genes in polygenic inheritance.
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PLS HELP!! I NEED THIS TODAY!!!
Which of the following is a stage of a host cell infection by a virus?
Select one:
a. viral genetic material injected into the host cell’s cytoplasm
b. replication of viral DNA using host mitochondria DNA
c. adaptation of viral receptors to infect most organism cells
d. virus attaches to host cell membrane using a capsule
Answers
Answer:
I think that the answer is B
cxmagoioum come here aajaiooo
Answers
Answer:
no
Explanation:
which word or group of words is represented by the word "period" in the term periodic table
A) group
B) family
C) energy level
D) valence electrons
Answers
Answer:
C) Energy Levels
Explanation:
The word "period" in the terms of the periodic table means energy levels.
Use a model to illustrate how photosynthesis transforms light energy into stored chemical
energy. use the pictures to draw/ describe the model
Answers
The best description of photosynthesis is energy storing.
What is photosynthesis?The process of photosynthesis is the process by which green plants prepare their own food in the presence of sunlight and during this process light energy is converted into chemical energy.
Photosynthesis has been the energy storing because the process converts light energy into chemical energy, which is stored in the bonds of glucose.photosynthesis transforms light energy into stored chemical energy in the diagram.
Therefore, The best description of photosynthesis is energy storing.
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what is the main difference between a biome and an ecosystem ecosystems are typically bigger
Answers
The main difference between a biome and an ecosystem is that biomes are large-scale geographic regions with similar climate and vegetation, while ecosystems are smaller and encompass specific interactions between organisms and their environment.
A biome is a broad geographic area characterized by similar climatic conditions, vegetation types, and animal communities. Examples of biomes include tundra, desert, tropical rainforest, and grassland. Biomes are defined by their unique combination of temperature, precipitation, and dominant plant species. They cover large regions and can span multiple continents. Within a biome, you can find various ecosystems.
On the other hand, an ecosystem is a smaller-scale unit that encompasses a specific community of organisms interacting with each other and their physical environment. It includes living organisms (biotic factors) and their non-living surroundings (abiotic factors), such as soil, water, sunlight, and temperature. Ecosystems can be as small as a pond or as large as a forest. They are dynamic and interconnected systems where energy flows and nutrients cycle among organisms.
While biomes provide a broader classification based on climate and dominant vegetation, ecosystems focus on the relationships and interactions between organisms within a specific geographical area. Ecosystems can exist within different biomes, each with its own unique characteristics and species compositions.
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What is evolution?
O a trait that allows organisms in a population to better survive and reproduce in their
environment
o the process by which individuals that are better adapted to their environment are more likely to
survive and reproduce
O a group of organisms that can mate to produce fertile offspring
O the process in which inherited traits of a population change over many generations
Answers
Answer:
O the process in which inherited traits of a population change over many generations
Explanation:
The traits of a populations evolve or "change" over many generations
Answer:
The process by which inherited traits of a population change over many generations.
Explanation:
Evolution in its contemporary meaning in biology typically refers to the changes in the proportions of biological types in a population over time.
How is harvesting food crops similar to, and different from, mining?
Answers
Answer:
Both extract from the soil while difference in their extraction method.
Explanation:
Harvesting food crops similar to mining because both are gained from the soil whereas it is also different from mining due to their method of extraction. Seeds are grown again and again in the soil and other agronomic activities has to be done to gain good yield of the crops while on the other hand, in mining precious metals is to be extracted that is already present in the soil.
gary and diane are preparing a garden. As part of their work, they must prepare the soil and plant 100 flowers. it would take diane 10 hours to prepare the soul and 12 hours for planting.
1. how much time would it take the two to complete the garden if they divide the soil prepration equally and the planting equally?
2. how much time would it take the two to complete the garden if they use compararive advantage and specialize in soil preparation or planting?
Answers
1. Time taken by Gary and Diane to complete the garden if they divide the soil preparation equally and the planting equally is 32 hours.
2. Time taken by the two to complete the garden if they use comparative advantage and specialize in soil preparation or planting is 34 hours.
1. To calculate the time taken by Gary and Diane to complete the garden, let's write the time taken by Gary to prepare the soil to be x hours. So, the time taken by Diane to prepare the soil will also be x hours. As given, Diane can plant 100 flowers in 12 hours. Thus, Diane can plant 25 flowers in 3 hours. Therefore, the time is taken by Diane to plant 100 flowers
= (100/25) × 3 = 12 hours.
Now, the time taken by Gary to plant 100 flowers will also be 12 hours. Therefore,
total time taken by both Gary and Diane to complete the garden = Time taken for soil preparation + Time taken for planting
= 2x + 12 hours = (2 × 10) + 12
= 32 hours
2. To calculate the time taken by the two to complete the garden if they use comparative advantage and specialize in soil preparation or planting, we know that Diane can prepare the soil in 10 hours while Gary can prepare the soil in 20 hours. Therefore, Diane should prepare the soil. Now, the time is taken by Diane to prepare the soil = 10 hours. Diane can plant 100 flowers in 12 hours while Gary can plant 100 flowers in 24 hours. Therefore, Gary should plant the flowers.
Now, the time is taken Gary to plant the flowers = 24 hours. Therefore,
total time taken by both Gary and Diane to complete the garden = Time taken for soil preparation + Time taken for planting
= 10 + 24
= 34 hours
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Arun and Marcus are asked to compare the solubility of two salts inwater at room temperature. The two salts are labelled X and Y.Name the independent variable in the investigation
Answers
Answer:
Independent variable is the two salts.
Explanation:
The independent variable in an investigation in science is the variable that you change in an experiment.
8. What makes phrenology a pseudoscience is the fact that …
a. none of it is true
b. We are focusing on cases that confirm our beliefs about it and not those that disconfirm our beliefs
c. most of it can be explained as a placebo effect
d. all of the above
e. none of the above
Answers
None of the facts supports phrenology and pseudoscience the correct answer is none of the above, option e is correct.
Phrenology is considered a pseudoscience not because none of it is true, but because its fundamental principles and methods have been discredited and are not supported by scientific evidence. Phrenology was a popular belief in the 19th century that claimed personality traits and mental abilities could be determined by examining the shape and size of bumps on the skull.
However, modern scientific understanding of the brain has shown that specific mental functions are not localized to specific areas of the skull as suggested by phrenology. The reason phrenology is considered a pseudoscience is that it lacks empirical evidence and scientific validity. Its claims have not been supported by rigorous experimentation or replicated findings.
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