Answers
Answer:
Apoenzyme and Prosthetic
Explanation:
Related Questions
Can environmental factors influence the expression of traits?
Answers
Answer:
Environmental Factors Interact with Genes
Environmental factors often influence traits independently of genes. But not always. Sometimes the environment changes a gene—either its DNA sequence or its activity level. Either of these effects can change the proteins that are made from a gene, which in turn affects traits.
How are mitosis and meiosis different
Please help ASAP
Answers
Meiosis is the production of gametes for sexual reproduction.
Location it takes place in
Mitosis takes place in all somatic cells!
Meiosis takes place in the testes and ovaries. (In humans)
Number of daughter cells produced by a single parent cell
Mitosis produces 2 daughter cells from 1 parent cell.
Meiosis produces 4 daughter cells from 1 parent cell.
Number of chromosomes each daughter cell contains
In mitosis, each daughter cell contains a diploid number of chromosomes. (2n)
In meiosis, each daughter cell contains a haploid number of chromosomes. (n)
Presence of crossing over stage in Prophase
In mitosis, there is no crossing over (homologous recombination) that occurs in Prophase.
In meiosis, there is crossing over (homologous recombination) that occurs in Prophase.
Genetically identical to parent cells?
In mitosis, daughter cells are clones of their parent cell. Hence they are genetically identical to each other.
In meiosis, daughter cells are genetically different to their parent cells as they contain different genetic codes due to crossing over that had led to the recombination of genes between homologues during Prophase I.
Genetically identical to daughter cells?
In mitosis, daughter cells are clones of each other. Hence they are genetically identical to each other.
In meiosis, daughter cells are genetically different to other daughter cells as they contain different genetic codes due to crossing over that had led to the recombination of genes between homologues during Prophase I.
HELP PLEASE! - What is an example of a chemical mediator?
A) serotonin
B) antigens
C) pathogens
D) phagocytes
Answers
Serotonin is an example of a chemical mediator, option A is correct.
Chemical mediators are molecules that are released by cells and tissues in the body in response to injury or infection. They can initiate, amplify, and coordinate immune and inflammatory responses. Serotonin is one such chemical mediator. It is a neurotransmitter that is released by platelets and other cells in response to injury or inflammation. Serotonin causes blood vessels to constrict and helps to form blood clots.
It can also stimulate pain receptors and activate the immune system. Other examples of chemical mediators include histamine, prostaglandins, and cytokines. These molecules play important roles in maintaining homeostasis in the body and in responding to a wide range of physiological and pathological stimuli, option A is correct.
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what is a safe method to heat alcohol/methylated spirits?
Answers
Answer:
Explanation:
Boil a pot of water that has been tested with a stainless steel dish that sits adequately on top of the pot, without falling in. When the water boils, turn off the stove, which eliminates the ignition source, then pour your ethanol into the bowl, and place it on top of the hot water pot
Answer:
Boil a pot of water that has been tested with a stainless steel dish that sits adequately on top of the pot, without falling in. When the water boils, turn off the stove, which eliminates the ignition source, then pour your ethanol into the bowl, and place it on top of the hot water pot.
Explanation:
Water seeping into the ground surface is called which of the following? O Infiltration • Saturation • Striation
Answers
Answer: A. Infiltration
Explanation: Infiltration is defined as the flow of water from above ground into the subsurface.
Cool air can hold less water vapor than warm air. Apply this fact to explain why clouds and precipitation form on the windward side of the mountain.
Answers
Answer:
Clouds and precipitation form on the windward side of the mountain due to change in temperature and pressure.
What is the relation between pressure and temperature?
Temperature of any substance is directly proportional to the pressure of that substance.
If the temperature of the wind increases so that winds get warmer and at the same time pressure of gas also increases, due to which particles will go far from each other. After this warm air rises up and cools down will condenses to form clouds, after this precipitate will falls on the windward side of the mountain.
Hence due to temperature and pressure precipitate will form on the windward side of the mountain.
Explanation:
How does gene expretion differ between human fibroblasts and induced pluripotent stem cells.
Answers
The difference between the gene expression between human fibroblasts and induced pluripotent stem cells are defined below.
What is gene expression?Gene expression refers to the process by which the information that is encoded in the DNA is used to produce functional gene products such as RNA and proteins.
Human fibroblasts are a type of connective tissue cell that play a key role in wound healing and tissue repair. They have more specialized and differentiated gene expression than the induced pluripotent cells because they have already undergone a significant amount of differentiation and have taken on specific functional roles on the tissues.
Induced-pleuripotent cells have less specialized gene expression, where the expression of pluripotent- associated genes and lack of tissue-specific genes.
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Why is it so important to monitor your temperature when you get a fever? A to prevent high blood pressure B. to prevent too much energy usage C. to prevent protein denaturation D. to prevent nausea and vomiting
Answers
Answer:
I would say c or d, but I'm not sure
Answer:
"
Explanation:
What is genetics? Why is it important? How does it affect disease development?
Answers
Genetics study focuses on the role that particular genes or gene families play in health and disease.
How does genetics work?The study of genes and heredity, or how particular characteristics or qualities are passed from parents to their offspring as a result of variations in DNA sequence, is known as genetics. A gene is a section of DNA that has the instructions needed to create one or more proteins that support bodily function.
What results in genetic illnesses?Mutations in one gene (monogenic disorder), multiple genes (multi - factorial inheritance disorder), a combination of gene mutations and external factors, or damage to chromosomes (increase in the composition or structure of entire chromosomes, this same structures that make up a person) can all result in genetic disorders.
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On her latest employee review, Valery's supervisors indicated that she is always on time to work, is able to meet deadlines, is able to resolve conflict in high stress
situations, and is always the one people go to for answers. Which is of these qualities would be MOST beneficial for Valery on a spelunking expedition?
OA on time
B. meets deadlines
C. resolves conflict
D. able to answer questions
Answers
Answer:
c
Explanation:
the right thing to do is resolve the fault of the cause
For this discussion post, I read the article “A creator of ‘CRISPR babies’ nears release from prison, where does embryo editing stand?
This article explained how biophysicist He Jiankui, who used the genome editor CRISPR to create the world's first genetically engineered babies, may be released from prison this week.
His November 2018 announcement about gene editing was well received. Still, Fyodor Urnov sees no circumstance that would justify efforts to modify babies genetically. Urnov supports using CRISPR to fix disease-causing mutations after birth. The work has proceeded with little notice, and oversight measures to stop rogue experiments like He's have stalled. A study showed how CRISPR could get rid of a newly fertilized egg of an extra copy of a chromosome. This problem can lead to Down syndrome and other medical conditions. The initial concerns about designer babies centered on CRISPR's sloppiness. But a study of CRISPR-altered human embryos found 16% had these "unintended editing outcomes" at the targeted DNA, and genetic screening of edited IVF embryos might not catch these errors. Stem cell researcher Dietrich Egli hopes to find a way to start and stop CRISPR at the embryo's single-cell stage. In a preprint posted on bioRxiv on 10 March, Egli's group demonstrated a strategy for trisomy, an errant third chromosome, by targeting an extra paternal or maternal chromosome copy with a CRISPR cut at or near its centromere.
If CRISPR does not correct the trisomy in all of the cells in an early embryo, a natural "rescue mechanism" might eliminate the abnormal cells. However, there are still multiple obstacles to overcome. Researchers are trying to use CRISPR to edit human embryos but need help beyond science. Editing the DNA of egg or sperm precursor cells may avoid some of these hurdles, improving the odds of getting it right. Orwig's team is exploring a different route to creating edited sperm stem cells by reprogramming adult human cells into a stem cell state and trying to coax them partly down the pathway that produces sperm. However, reprogrammed adult cells only survive when placed into newborn animals, which is unrealistic for humans. Scientists say the increased awareness of CRISPR's shortcomings has underscored the recklessness of transplanting edited embryos with today's technology. Still, some scientists are openly advocating for the practice.
find something interesting and 1-2 questions about the summary
Answers
One interesting aspect of the article is the discussion around using CRISPR to edit disease-causing mutations after birth, rather than in embryos.
What is the authenticity if genetically modifying babies ?Fyodor Urnov supports this approach and believes that there is no circumstance that would justify modifying babies genetically. This raises the question of whether there is a moral or ethical line that should not be crossed when it comes to genetic modification of humans, even if it is done to prevent or treat disease.
Another interesting point is the potential use of CRISPR to edit the DNA of egg or sperm precursor cells to avoid some of the hurdles of editing embryos. This raises the question of how this approach would be implemented and regulated, as it involves altering the genetic material of potential future offspring before they are even conceived.
Overall, the article highlights the ongoing debate and ethical considerations around the use of CRISPR for genetic modification in humans, as well as the need for continued research and oversight to ensure that any such use is safe and ethical.
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Show a Punnett square for a cross that allows F1 to self-pollinate (Hint: a cross between the offspring).
Answers
From this cross of individuals that are heterozygous for a particular trait, the expected genotypic ratio of the F1 generation would be 1 AA: 2 Aa: 1 aa. The expected phenotypic ratio would be 3 individuals with the dominant trait (A_) to 1 individual with the recessive trait (aa).
What is the Punnett square for the self-pollination of F1?Consider a cross between two individuals that are heterozygous for a particular trait.
Let A represent the dominant allele and a represent the recessive allele.
The genotypes of the parent generation (P generation) are Aa × Aa.
Punnett square for this cross:
| A | a |
-------|------|------|
A | AA | Aa |
-------|------|------|
a | Aa | aa |
-------|------|------|
The Punnett square shows the possible combinations of alleles from the parent generation and predicts the genotypes and phenotypes of the offspring in the F1 generation.
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The principle of heredity discovered by Mendel states that each diploid individual has two alleles at one locus and these two alleles separate when gametes are formed, one allele enters each gamete. It's called principle?
Answers
One of the Mendelian Laws of Inheritance, the Law of Segregation states that the two alleles in a pair separate during gamete production. During anaphases I and II of the meiosis process, Mendel's Segregation Law is put into practise.
Most alleles that have been observed have little to no effect on how well their gene product, for which they encode, works. A range of colours is one independent phenotypic trait that can be periodically produced by various genes. A notable example of this is Gregor Mendel's discovery that the white and purple flower colours in pea plants were caused by a single gene with two alleles. The homologous chromosomes are sorted into two daughter nuclei with their individual versions of each gene during this stage of the first meiotic division. An organism's gametes each contain a single gene copy that is selected at random. The law of segregation is another name for it.
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Organic compounds are all at least partially composed of the element ________________.
Organic compounds are all at least partially composed of the element ________________.
carbon
sodium
hydrogen
nitrogen
magnesium
Answers
Answer:
Carbon
Explanation:
Carbon is considered as the key element in organic compounds.
Orca prey on sea otters. Sea otters are a predator of sea urchins. Sea urchins consume kelp. Kelp provides a habitat for many sea animals like prawns, crab and starfish.Marine biologists were monitoring a coastline of Africa. Over the course of a year, they counted the population sizes of various animals and charted it monthly in the following graph.What could be obersved about the population sizes at the end of the following year?A. The population of orca would increase.B. The population of kelp would increase.C. The population of crabs would decrease.D. The population of sea urchins would decrease.
Answers
The graph shows us that the population of sea otters is considerably decreasing, reaching really low rates. As orcas prey on them, it would be really difficult for the population of orca to grow, because there won't be enough food. Therefore, A is incorrect.
As the population of sea otters decrease, it is expected that the population of sea urchins increase, as there would be less predators (sea otters prey on sea urchins). Therefore, D is also incorrect.
As the population of sea urchins would increase in the following year, and knowing that they prey on kelp, it is expected that the population of kelp would decrease, as there will be more predators. Therefore, B is wrong too.
And as the population of kelp decreases, and knowing that kelps are the ones who provide habitat for crabs, it is expected that the population of crabs would decrease too. Therefore, the correct answer is C. The population of crabs would decrease.
Quagga mussels, an invasive species of mollusk originally from
Russia, have been introduced to the lake after being carried in on
the hulls of boats. An assessment of the size of the quagga
mussel problem is needed, along with suggestions to curb their
population growth.
what field of science is this?
Answers
This is a problem in the field of ecology.
The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.
It falls under the discipline of ecology, which studies the relationships between organisms and their environment.
Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.
In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.
They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.
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Biodiversity in the Amazon rainforest will most likely?
Answers
Answer:
In the future, the Amazon rainforest's biodiversity will decrease unless something is done about the mass destruction of habitats and deforestation at the rate of 40 football fields a minute. Biodiversity is the variation of organisms (plants, animals and bacteria) in the world or in a specific habitat.
Explanation:
A control can be best defined as:
A) a variable that is kept constant in an experiment
B) an experiment where the final results are known ahead of time
C) a hypothesis that regulates the results of an experiment
D) an experiment that is undertaken both in the field and in the laboratory
E) a variable that changes during the course of an experiment
Answers
Answer:
A) a variable that is kept constant in an experiment
Your friend claims that an energy pyramid may not have the same shape as a pyramid of numbers for the same ecosystem, as shown in the diagrams.
Energy Pyramid
Pyramid of Numbers
Trophic 3
level
2
Trophic 3
level
2
Joules (J)
Number of individuals
Which statement accurately uses the diagrams to support this claim?
• A. A few large producers can support a very large primary consumer population, as shown in the pyramid of numbers.
B. Occasionally, primary consumers are able to carry out photosynthesis, as shown in the pyramid of numbers.
c. A large number of producers can support the same number of primary consumers, as shown in the energy pyramid.
D. Higher trophic levels always contain fewer individuals, as shown in both the energy pyramid and the pyramid of numbers.
Answers
The correct statement that accurately uses the diagrams to support the claim that an energy pyramid may not have the same shape as a pyramid of numbers for the same ecosystem is: Higher trophic levels always contain fewer individuals, as shown in both the energy pyramid and the pyramid of numbers.
The correct answer is option D.
Both the energy pyramid and the pyramid of numbers illustrate the relationship between trophic levels in an ecosystem. The energy pyramid represents the flow of energy through different trophic levels, with each level consuming a portion of the energy from the level below. As energy is transferred, some energy is lost as heat, resulting in a decrease in available energy at higher trophic levels. This reduction in energy availability limits the number of organisms that can be supported at each level, leading to a decrease in the number of individuals as we move up the pyramid.
Similarly, the pyramid of numbers represents the number of individuals at each trophic level in the ecosystem. It typically follows a similar pattern to the energy pyramid, with a larger number of individuals at lower trophic levels and a decreasing number of individuals at higher trophic levels. This is because energy transfer is not 100% efficient, and as energy flows through the food chain, it supports a smaller number of organisms at each successive level.
The statement in option D accurately highlights the consistent pattern observed in both the energy pyramid and the pyramid of numbers, where higher trophic levels contain fewer individuals. This supports the claim that the shape of an energy pyramid may not necessarily match the shape of a pyramid of numbers, as the number of individuals in each trophic level is influenced by factors other than energy availability, such as predator-prey interactions and reproductive rates.
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Which of these is a base? O NaOH Vinegar Lemon Juice HCI
Answers
Answer:
NaOH
Explanation:
Since no acid-base reaction equations are provided for each substance, we will have to use logic to find the answer. We can immediately eliminate vinegar and lemon juice, which are both acids, as acidic substances generally taste sour. Next, we can apply the idea of most acids having a +H in their chemical formula while most bases have a -OH in their chemical formula. Because HCl has a +H in its formula, it is an acid, and since NaOH has a -OH in its formula, NaOH is a base.
Importance of Photosynthesis
Answers
Answer:
Photosynthesis is of paramount importance for several reasons:
1. Production of Oxygen: Photosynthesis is responsible for the production of oxygen gas (O2) as a byproduct. This oxygen is vital for the survival of all aerobic organisms, including humans, as it is needed for respiration.
2. Carbon Dioxide Fixation: During photosynthesis, plants and other photosynthetic organisms absorb carbon dioxide (CO2) from the atmosphere and convert it into organic compounds, such as glucose. This process helps regulate the concentration of carbon dioxide in the atmosphere and mitigates the greenhouse effect and global warming.
3. Energy Source: Photosynthesis is the primary process by which solar energy is converted into chemical energy stored in the form of glucose and other carbohydrates. This energy is then utilized by plants and other organisms through cellular respiration to carry out various metabolic activities.
4. Food Production: Photosynthesis is responsible for the production of food in autotrophic organisms, including plants. Through photosynthesis, plants synthesize glucose and other organic molecules, which serve as a source of energy and nutrients for themselves and for heterotrophic organisms, including animals and humans.
5. Ecosystem Support: Photosynthetic organisms form the foundation of most ecosystems. They are primary producers that provide energy and nutrients to other organisms through the food chain. Photosynthesis supports the entire food web, sustaining the diverse life forms and ecological balance in ecosystems.
6. Oxygen-Rich Atmosphere: Photosynthesis played a crucial role in transforming the Earth's early atmosphere, which was initially rich in carbon dioxide, into an atmosphere rich in oxygen. This transformation enabled the development of complex life forms that depend on oxygen for survival.
7. Environmental Benefits: Photosynthetic organisms, particularly plants, contribute to environmental benefits such as soil stabilization, erosion control, water purification, and the regulation of climate and microclimate through their influence on temperature, humidity, and atmospheric composition.
In summary, photosynthesis is vital for the production of oxygen, fixation of carbon dioxide, conversion of solar energy into chemical energy, food production, support of ecosystems, oxygenation of the atmosphere, and various environmental benefits. It is a fundamental process that sustains life on Earth and maintains the delicate balance of ecosystems.
Explanation:
The diagram below shows part of a DNA molecule.
18
What could happen if two of the base pairs on this strand of DNA were switched?
SC.912.L.16.3
A different protein would be made.
The strand would not be replicated.
Transcription would stop at that point.
The rest of the DNA strand would detach and unravel.
Answers
Answer: I think the answer is c
Explanation:
A different protein would be made.
If two base pairs on a strand of DNA were switched, it could lead to a different protein being produced. The sequence of DNA bases determines the sequence of amino acids in a protein. Each three-base sequence, known as a codon, codes for a specific amino acid or a stop signal.
If the base pairs are switched, the codons could be altered, resulting in a change in the amino acid sequence during protein synthesis. This change in the amino acid sequence can lead to a different protein being synthesized, potentially impacting its structure and function.
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Given that the function of egg yolk is to nourish and support the developing chick, complete the explanation of why egg yolks are so high in fat, protein, and cholesterol.
Answers
Answer:
Chick with in the egg depend for all its energy and food requirement on the egg yolk , therefore egg yolk is rich in fat, protein, and cholesterol.
Explanation:
Before the egg breaks and the chick comes out, few days nourishment for chicks is required. Hence, the egg yolk needs to be nutritious as new developing chick (with in the egg) rely for essential nutrients (required for growth) on the egg yolk. Chick require energy from yolk, hence it is rich in fat (energy). It also needs to grow and develop, therefore egg yolk has lot of protein (building blocks). Lipid and cell with in the yolk help in formation of cell and strengthening of bones and feathers
What explains why populations fluctuate around the carrying capacity?
Answers
Answer:
In population ecology: Population fluctuation As stated above, populations rarely grow smoothly up to the carrying capacity and then remain there. Instead, fluctuations in population numbers, abundance, or density from one time step to the next are the norm.
The carrying capacity of an environment is the maximum population size of a biological species that can be sustained in that specific environment, given the food, habitat, water, and other resources available. In population ecology, carrying capacity is defined as the environment's maximal load, which is different from the concept of population equilibrium, which may be far below an environment's carrying capacity. The effect of carrying capacity on population dynamics may be modelled with a logistic function.
The populations fluctuate around its carrying capacity because it is very common even for a stable population to briefly exceed or dip below its carrying capacity.
The size of the population fluctuate due to some environmental factors, presence of predators, competitors etc.
Also reproductive lag time can also cause the population to exceed the carrying capacity temporarily.
What is carrying capacity?The carrying capacity of an environment is the maximum population size of organisms that can be supported by the ecosystem, given the food, mates, shelters and other resources available.
What is reproductive lag time?Reproductive lag time is the time required for birth rate to decline and the death rate to increase in response to resource limits.
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For each strand of the new replicated DNA, label them as either template strands (from the original DNA) or the replicated strands.
Answers
Answer:
Explanation:
Can your gut bacteria make you fat? Explain?
Answers
Depends. Certain gut bacteria that may produce LPS which causes inflammation which can contribute to the process of weight gain and insulin resistance. There have been studies over the years to see what was actually the result of the guy bacteria and one test said that people who had lower gut bacteria diversity and are overweight all have levels of C-reactive protein in their bloodstream ( an inflammatory marker in the blood)
An ecosystem is a community of living organisms and the nonliving components of the environment Energy flows in an ecosystem in one direction through food chains, and a food web is made up of all the food chains within a community of organisms. Biodiversity refers to the variation in species found within an ecosystem, and it is measured in two ways: (1)
species richness, which is the total number of different species in an ecosystem; and (2) relative abundance, which is a measure of how common each species is within the ecosystem
Imagine that carnivore D represents the sea lamprey in the Great Lakes ecosystem. This invasive species has been present there
since the 1800's yet the ecosystem has remained stable. How can you explain this?
A) The sea lampreys are indigenous to salt water and have a very short life
span
B) There are complex feeding mechanisms at work to protect the other
species in the food web.
C) The sea lampreys only feed on one type of fish so they have only depleted
that single population.
D) Marine scientists have developed a method to effectively remove the
Lampreys from the Great Lakes.
Answers
Answer:
B
Explanation:
there are complex feeding mechanisms at work to protect the other species in the food web
9. What is the approximate dewpoint
temperature when the dry-bulb reading is
14°C and the wet-bulb reading is 8°C?
A) 1°C
B) 6°C
C) -6°C
D) -9°C
Answers
The given wet-bulb depression of 6°C, the approximate dew point temperature would be around 6°C. Option B
What is the temperature?You must compute the wet-bulb depression, which is the difference between the dry-bulb temperature and the wet-bulb temperature, in order to estimate the approximate dew point temperature.
Dry-bulb temperature = Wet-bulb depression - Temperature of a wet bulb
Wet-bulb depression in this instance equals 14°C - 8°C = 6°C.
The temperature differential brought on by moisture evaporating from the wet-bulb thermometer is represented by the wet-bulb depression. You can determine the dew point temperature by comparing this number to a table or chart that uses psychrometric measurements.
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Drag each tile to the correct location.
Categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both
makes predictions
about future
events
based on
observations of
natural phenomena
a tentative
statement used to
guide scientific
investigations
a well-established,
highly reliable
explanation
can be tested by
many independent
researchers
Answers
To categorize each term, we can determine if it is typical of a scientific theory, a scientific hypothesis, or both
Makes predictions about future events: Scientific Hypothesis. Based on observations of natural phenomena: Both Scientific Theory and Scientific Hypothesis. A tentative statement used to guide scientific investigations: Scientific Hypothesis. A well-established, highly reliable explanation: Scientific Theory
A scientific hypothesis is a tentative statement or prediction that can be tested through scientific investigation. It is based on observations of natural phenomena and can make predictions about future events.
A scientific theory, on the other hand, is a well-established and highly reliable explanation supported by a substantial body of evidence. It goes beyond individual observations and hypotheses, providing a comprehensive understanding of a particular phenomenon or set of phenomena.
Both scientific theories and hypotheses can be tested by many independent researchers to ensure the validity and reliability of the findings. Therefore, the term "Can be tested by many independent researchers" applies to both scientific theories and scientific hypotheses.
By categorizing the given terms, we can see that "Makes predictions about future events" corresponds to a scientific hypothesis, "Based on observations of natural phenomena" applies to both scientific theories and scientific hypotheses, "A tentative statement used to guide scientific investigations" refers to a scientific hypothesis, "A well-established, highly reliable explanation" represents a scientific theory, and "Can be tested by many independent researchers" applies to both scientific theories and scientific hypotheses.
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Explain what the acoustic measure H1-A3 is. Additionally discuss why a large value of the measure H1-A3 would reflect a breathy voice. (Hint: consider using these terms: vocal fold closure, spectral tilt).
Answers
The acoustic measure H1-A3 represents the difference in frequency between the first harmonic (H1) and the third formant (A3) in a speech signal.
The first harmonic is the lowest frequency component of the voice signal, while the third formant is a resonance frequency that is related to the shape and size of the vocal tract.
A large value of H1-A3 indicates that the third formant is higher in frequency than the first harmonic, which is a characteristic of breathy voice quality.
This is because breathy phonation is associated with incomplete vocal fold closure, which results in a weaker and more turbulent airflow through the vocal tract.
This causes a change in the spectral tilt, which in turn leads to an increase in the frequency of the third formant relative to the first harmonic, resulting in a larger H1-A3 value.
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