Answer:
Mary has already narrowed down her problem for the experiment, and she has already done research on said problem. As well as made a hypothesis for how she believes the experiment will turn out as results.
Explanation:
Who first observed bacteria in 1676?
A.
Antoine van Leeuwenhoek
B.
Madame Curie
C.
Albert Einstein
D.
Carl Linnaeus
Antoine van Leeuwenhoek
During the entire process of meiosis in humans (n=23) what is the highest and lowest number of total complete strands of DNA in an individual cell? (hint, each chromosome or sister chromatid is made up of a single complete strand of DNA).
Group of answer choices
Highest: 46 | Lowest: 23
Highest: 46 | Lowest: 46
Highest: 92 | Lowest: 46
Highest: 184 | Lowest: 23
Highest: 92 | Lowest: 23
During the entire process of meiosis in humans (n=23), the highest and lowest number of total complete strands of DNA in an individual cell are: Highest: 92 | Lowest: 23. The correct option is e.
Meiosis is a process of nuclear division in eukaryotic cells that results in four haploid daughter cells. These haploid cells differ genetically from the parent cell that produced them because of the recombination and independent assortment of chromosomes that occur during meiosis.
During meiosis in humans (n=23), the highest and lowest number of total complete strands of DNA in an individual cell are as follows:1. Highest: 92In a human cell at the end of the S phase, there are 46 double-stranded chromosomes. Each double-stranded chromosome is composed of two sister chromatids, which contain a complete strand of DNA. During prophase I of meiosis, each chromosome in the parent cell aligns with a homologous chromosome to form a bivalent or tetrad. As a result, each chromosome in the daughter cell contains a complete strand of DNA from both the mother and the father.
As a result, each daughter cell produced during meiosis in humans contains 23 double-stranded chromosomes, with a total of 92 complete strands of DNA.2. Lowest: 23The primary function of meiosis in humans is to produce gametes (sperm and eggs) that are genetically unique. The production of haploid gametes necessitates a reduction in the number of chromosomes.
During the first meiotic division, the number of chromosomes in the parent cell is reduced by half, resulting in two haploid daughter cells. Each daughter cell contains 23 single-stranded chromosomes, with a total of 23 complete strands of DNA. The second meiotic division is similar to mitosis in that it separates the sister chromatids of each chromosome, resulting in four haploid daughter cells, each containing 23 single-stranded chromosomes.
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Plzzzzzzz help me...
Which of the following processes add methane (CH4) to the atmosphere?
A. Breakdown of plant and animal remains in the soil.
B. Leakage from natural gas pipelines.
C. Food digestion by land animals.
D. All of the above.
I would give brainliest to the person who answers first.
Again plz help me....
Answer:
D = All of the above
WILL GET BRAINLIEST In Mendel's experiments, what proportion of F 2 plants were tall?
1.all of them
2.one-half
3.one-fourth
4.three-fourths
What are the 5 Considerations for cloud computing?
(a)Private, public or hybrid, (b)current infrastructure utilization, (c)compatible operational system, (d)infrastructure availability and (e)backup policies and disaster recovery are the 5 main considerations for cloud computing.
1 - Private, public, or a hybrid - If you're moving to the cloud, one of the first decisions to make is whether to go private, public, or hybrid.
2. Present infrastructure usage - When thinking about moving to the cloud, this is unquestionably one of the things you want to consider. In traditional IT, firms typically buy their gear based on surges in utilization to prevent problems when these situations occur.
3. A functionally compatible system - Since standards are central to the cloud, you must maintain the most recent versions of your middleware and operating systems if you want to move them to a cloud provider.
4. Access to infrastructure - You must determine whether the infrastructure is prepared for your demands before selecting a CSP. For backup and recovery as well as other infrastructure services, most clouds use open standards.
5. Disaster recovery and backup procedures - Organizations need to take this into careful consideration since it is a crucial topic. Standard backup procedures with some level of modification are permissible from cloud providers.
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decomposers are vital components of a food web because they:____
Decomposers are vital components of a food web because they break down the remains of plants and animals, recycle nutrients, and return them to the environment. This process is called decomposition. Decomposers play a critical role in maintaining a balanced ecosystem.
Decomposers are responsible for breaking down the remains of dead plants and animals. They release the nutrients back into the environment, which are then used by other living organisms. Decomposers are vital to the food web because they help in nutrient recycling. When the organic material is broken down by decomposers, nutrients such as carbon, nitrogen, and phosphorus are released. These nutrients are then available for use by other organisms, which complete the food chain.
Decomposers are also essential in preventing the accumulation of dead organic matter. The build-up of dead organic material could lead to the accumulation of waste, which could be harmful to other living organisms. Decomposers help prevent this by breaking down the dead organic material and releasing the nutrients back into the environment.
In conclusion, decomposers are essential components of a food web because they break down the remains of dead plants and animals, recycle nutrients, and prevent the accumulation of dead organic matter. They play a vital role in maintaining the balance of an ecosystem, which is essential for the survival of all living organisms.
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definition of tissue
The group of similar cells which work together to perform a particular function is called a tissue....
You may take help from the attachment....
Silk is a natural protcin fibre material of high tensile strength. There are two kinds of silk, produced by spiders or silkworms, which differ in their characteristics. Average diameter of fibres prod
The average diameter of silk fibers produced by spiders is around 1.0 to 4.0 micrometers, while the average diameter of silk fibers produced by silkworms is around 10.0 to 25.0 micrometers.
Spiders produce silk fibers that are generally thinner and more lightweight compared to silkworm silk fibers. Spider silk is known for its exceptional tensile strength, elasticity, and toughness. The diameter of spider silk can vary depending on the spider species and the specific type of silk produced (e.g., dragline silk, capture silk). On the other hand, silkworm silk, also known as bombyx silk, is produced by the domesticated silkworm species Bombyx mori. Silkworm silk fibers are relatively thicker compared to spider silk but still possess high tensile strength. Silkworm silk is primarily used for the production of silk fabric and is renowned for its lustrous appearance and smooth texture.
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joe pushes a box with force of 16 Newtons to the left. Ann pushes the same box from the opposite side with a force of 8 newtons to the right. What will be the result?
Answer:the box would go straight
ii think
Explanation:
pls help i need help pls
We do not have enough information to accurately answer the question.
According to the poiselle's low , if the radius of the
blood vessels decreases by 2; what happens to the resistance of
that blood vessel
According to Poiseuille's law, if the radius of a blood vessel decreases by 2, the resistance of that blood vessel will increase.
Poiseuille's law describes the relationship between the radius of a blood vessel, the flow rate of blood through the vessel, and the resistance to that flow. According to the law, the resistance (R) of a blood vessel is inversely proportional to the fourth power of its radius (r). In mathematical terms, the formula is R ∝ 1/r^4.
When the radius of a blood vessel decreases by 2, it means that the new radius is half of the original radius. If we substitute this new radius into the Poiseuille's law equation, we find that the resistance will increase significantly. Since the resistance is inversely proportional to the fourth power of the radius, decreasing the radius by 2 will result in an increase of (1/0.5)^4 = 2^4 = 16 times in resistance.
In simpler terms, if the radius of a blood vessel decreases, the available space for blood to flow through becomes smaller. This reduction in space leads to increased friction between the blood and the vessel walls, which in turn increases the resistance to blood flow. Consequently, the heart has to work harder to pump the blood through the constricted blood vessels, leading to increased pressure within the vessels.
In summary, according to Poiseuille's law, when the radius of a blood vessel decreases by 2, the resistance to blood flow through that vessel increases significantly. This highlights the importance of maintaining healthy blood vessel function and avoiding conditions that can cause constriction or narrowing of the vessels.
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PLEASE HURRY!! What are the conditions necessary for fog to form? (Select all that apply)
What happens to the second and third stages when they run out of fuel?
Answer:
When the first stage separate, then it will not descend further and it will fall away. It would not be able to launch into air.
The first stage actually help to release it from shell, the first stage of multistage rocket help it to sprout.
If the first stage runs out of the fuel, then there will be no combustion in rocket and it will not ascend further into next stages.
If the second and third stage run out of the fuel then the next 4th and 5th stages will happen to a cessation and there will be a likelihood for it to fall down to earth.
When chuncks of a big mass start to separate
Fixed-size chunk de-duplication is carried out at routers rather than on hosts. The considered packet is first intercepted in a router in real time or at the network endpoints.
What is Chunk size?
The largest physical disc unit devoted to database server data storage is called a chunk. Administrators can allocate disc space in a comparatively big unit thanks to chunks. The largest possible chunk size is 4 TB. The maximum number of chunks is 32,766.
She divided the fruit into big pieces. She speaks on the phone for a sizable portion of her day. He invested a lot of time on the undertaking.
A total of 65,536 blocks are divided into chunks that are 16 blocks wide, 16 blocks long, and 256 blocks high.
MongoDB uses chunk sizes that are 128 MB by default. You have the option of changing the chunk size. Think about the effects of altering the default chunk size: At the expense of more frequent migrations, small pieces result in a more even distribution of data.
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Which are three requirements for forming petroleum?
Answer:
i think it is oxygen, heat, steam heat.
Explanation:
at what time during a 24-hour day would a radiation temperature inversion best be developed?
A radiation temperature inversion would best be developed during the early morning hours, just before sunrise. This occurs because the ground cools rapidly during the night due to longwave radiation being emitted from the Earth's surface.
When air is cooled by contact with a colder surface until it is cooler than the atmosphere above it, surface temperature inversion occurs. This usually happens on clear nights when radiation rapidly cools the ground.A radiation inversion occurs when the air closest to the surface cools faster than the air above it because cloud cover does not protect the earth's lower atmosphere and trap this outgoing energy.
As the ground cools, it in turn cools the air directly above it, creating a layer of colder air near the surface. Meanwhile, the air aloft remains relatively warmer, leading to a temperature inversion, which is a stable atmospheric condition that can trap pollutants and affect weather patterns.
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Find the solution of the given initial value problem: (a) y
′
−y=2xe
2x
,y(0)=1 (b) y
′
+(cotx)y=2cscx,y(π/2)=1
(A) The answer to the initial value problem is given by \(\(y = (x^2 + 1)e^x\)\), where \(\(y' - y = 2xe^{2x}\)\) and \(\(y(0) = 1\)\).
(B) The resolution to the initial value problem can be expressed as \(\(y = \frac{2x - (\pi - 1)}{\sin(x)}\)\), where \(\(y' + \cot(x)y = 2\csc(x)\)\) and \(\(y\left(\frac{\pi}{2}\right) = 1\)\).
(A) To solve the initial value problem:
\(\[y' - y = 2xe^{2x}, \quad y(0) = 1\]\)
We can use an integrating factor method. To begin, let us express the equation in its standard form:
\(\[y' - y - 2xe^{2x} = 0\]\)
The integrating factor \(\(I(x)\)\) is given by \(\(I(x) = e^{\int -1 \, dx} = e^{-x}\)\).
To obtain the solution, apply the integrating factor to both sides of the equation and perform the multiplication.
\(\[e^{-x}(y' - y) - 2xe^{2x}e^{-x} = 0\]\)
This simplifies to:
\(\[e^{-x}y' - e^{-x}y - 2x = 0\]\)
Now, observe that the expression on the left-hand side represents the derivative of \(\((e^{-x}y)\)\) with respect to \(\(x\)\).
Using this observation, we can rewrite the equation as:
\(\[\frac{d}{dx}(e^{-x}y) - 2x = 0\]\)
Integrating both sides with respect to \(\(x\)\), we get:
\(\[e^{-x}y - \int 2x \, dx = C\]\)
where \(\(C\)\) is the constant of integration.
Integrating \(\(\int 2x \, dx\)\), we have:
\(\[e^{-x}y - x^2 + C = 0\]\)
To find the constant \(\(C\)\), we use the initial condition \(\(y(0) = 1\)\).
Substituting \(\(x = 0\)\) and \(\(y = 1\)\) into the equation, we get:
\(\[e^{0} \cdot 1 - 0^2 + C = 0\]\)
\(\[1 + C = 0\]\)
\(\[C = -1\]\)
Substituting \(\(C = -1\)\) back into the equation, we have:
\(\[e^{-x}y - x^2 - 1 = 0\]\)
Finally, we can solve for \(\(y\)\) by isolating it:
\(\[e^{-x}y = x^2 + 1\]\)
\(\[y = (x^2 + 1)e^x\]\)
(B) To solve the initial value problem:
\(\[y' + \cot(x)y = 2\csc(x), \quad y\left(\frac{\pi}{2}\right) = 1\]\)
We can use an integrating factor method. To begin, we will rewrite the equation in standard form:
\(\[y' + \cot(x)y - 2\csc(x) = 0\]\)
The integrating factor \(\(I(x)\)\) is given by:
\(\(I(x) = e^{\int \cot(x) \, dx} = e^{\ln(\sin(x))} = \sin(x)\).\)
Apply the integrating factor to both sides of the equation and perform the multiplication.
\(\[\sin(x)(y' + \cot(x)y) - 2\csc(x)\sin(x) = 0\]\)
This simplifies to:
\(\[\sin(x)y' + \cos(x)y - 2 = 0\]\)
Now, observe that the expression on the left-hand side represents the derivative of \(\((\sin(x)y)\)\) with respect to \(\(x\)\). Using this observation, we can rewrite the equation as:
\(\[\frac{d}{dx}(\sin(x)y) - 2 = 0\]\)
Integrating both sides with respect to \(\(x\)\), we get:
\(\[\sin(x)y -\)\(\int 2 \, dx = C\]\)
where \(\(C\)\) is the constant of integration. Integrating \(\(\int 2 \, dx\)\), we have:
\(\[\sin(x)y - 2x + C = 0\]\)
To find the constant \(\(C\)\), we use the initial condition \(\(y\left(\frac{\pi}{2}\right) = 1\).\)
Substituting \(\(x = \frac{\pi}{2}\)\) and \(\(y = 1\)\) into the equation, we get:
\(\[\sin\left(\frac{\pi}{2}\right) \cdot 1 - 2\left(\frac{\pi}{2}\right) + C = 0\]\)
\(\[1 - \pi + C = 0\]\)
\(\[C = \pi - 1\]\)
Substituting \(\(C = \pi - 1\)\) back into the equation, we have:
\(\[\sin(x)y - 2x + (\pi - 1) = 0\]\)
Finally, we can solve for \(\(y\)\) by isolating it:
\(\[\sin(x)y = 2x - (\pi - 1)\]\)
\(\[y = \frac{2x - (\pi - 1)}{\sin(x)}\]\)
\(\(y = \frac{2x - (\pi - 1)}{\sin(x)}\).\)
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The complete question is:
Find The Solution Of The Given Initial Value Problem:
(A) \(\(y' - y = 2xe^{2x}\)\), and \(\(y(0) = 1\)\)
(B) \(\(y' + \cot(x)y = 2\csc(x)\)\), and \(\(y\left(\frac{\pi}{2}\right) = 1\)\)
Sensory pathways are ____________ pathways that conduct information about limb ____________ and the sensations of ____________ , temperature, pressure, and pain. Stimuli received from receptors within the skin, muscles, and joints are processed through ____________ sensory pathways, while ____________ sensory pathways process stimuli received from the organs. Sensory pathways use a series of two or three neurons to transmit nerve signals from the ____________ .
Answer:
Ascending, Position, Touch, Somatosensory Pathways, Viscerosensory Pathways.
Explanation:
Sensory pathways are ascending pathways that conduct information about limb position, and the sensations of touch, temperature, pressure, and pain to the brain.
Stimuli received from receptors within the skin, muscles, and joints are processed through somatosensory pathways, while viscerosensory pathways process stimuli received from the organs.
I hope this answer helps.
what can happen if the nerves in your spinal cord get damaged
Answer:
You may experience paralysis
Explanation:
Spinal nerves are responsible for transmitting signals to all parts of the body, so if they are damaged, some messages may not get through, thus not being able to control the body part. (Paralysis)
Plz mark this as the brainliest if you think this answer is good
Which of the following describes an
endergonic reaction?
A. this releases energy from a bond by breaking it and ending with
low-energy products
B. this creates bonds that have absorbed energy from its
surroundings and created energy-rich products
C. this rearranges the shape of a molecule to fit into a protein
better
This creates bonds that have absorbed energy from its surroundings and created energy-rich products.
Describes an endergonic reaction?An endergonic reaction is a type of reaction that requires free energy to proceed. An example of an endergonic reaction is photosynthesis because the reaction uses solar energy.
So we can conclude that this creates bonds that have absorbed energy from its surroundings and created energy-rich products.
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Answer:
Look easy answer B that guys answer is long
Explanation:
PLZ HELP ASAP
Which description explains how inertia changes the effects of gravity on objects in the solar system? keeps the Sun stationary pulls asteroids toward Earth causes shooting stars to stop moving prevents planets from pulling into one another
Answer:
The answer is D
Inertia is the tendency of an object to resist change to its velocity and direction. The bigger the mass of an object the higher its inertia. In space, the celestial bodies with a bigger mass have more inertia and have a higher gravitation pull (because they bend space-time more than smaller objects). The gravitational force of bigger objects influences on other celestial bodies and beats their inertia force by causing them to change direction and speed.
Explanation:
Inertia is the tendency of an object to resist changes in its motion, including changes in its speed or direction.
What is inertia?In the context of the solar system, the inertia of objects can affect the way that gravity affects them.
For example, the gravitational pull of the Sun is what keeps the planets in orbit around it. However, because the planets also have inertia, they are constantly moving forward in their orbits even as they are being pulled towards the Sun. This combination of inertia and gravity results in a stable, elliptical orbit.
Similarly, asteroids and other small objects in the solar system are subject to the gravitational pull of the larger bodies, such as the Earth. However, because these objects also have inertia, they may not be pulled directly towards the larger body, but instead may follow a curved path around it.
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The breakdown of food takes place in the mouth, stomach and small intestine. Name the type of digestion for which the teeth in the mouth are responsible.
Mechanical Digestion is a type of digestion for which the teeth in the mouth are responsible. It consists of chewing the food.
☁ 좋은 하루 되세요!! ☁ -HunnyPeachyPlease help!! PLEASE!
Answer:
1-Sparta, 2-Sparta, 3-Sparta, 4-both, 5-both, 6-Athens, 7-Athens, 8-Athens, 9-Sparta, 10-Athens, 11-Athens, 12- Sparta, 13-Athens, 14-Sparta, 15-Sparta
Explanation:
Answer:
I copied my previous answer to this because I think they are the same questions. BTW how many times did u post the same question??!
1- Athens
2- Spartans
3- Spartans
4- I think it is both, don't get me wrong
5- I think it is Spartans
6- Athens
7- Athens
8- Athens
9- Spartans
10- Athens
11- Athens
12- Spartans
13- Athens
14- Spartans
15- Spartans
There you go. Hope this helps :D
the neurotransmitter is secreted by the neurons of the basal nuclei. the degeneration of these neurons results in disease.
The neurotransmitter dopamine is secreted by the neurons of the basal nuclei. The degeneration of these neurons results in Parkinson disease.
What is Parkinson's disease?Parkinson's disease is a neurodegenerative disease in which movement is affected. This happens because the nerve cells do not produce enough dopamine. Parkinson's symptoms begin gradually with tremors in the hands, arms, legs, slowness of movement with balance and coordination problems. As time goes by, these problems begin to worsen until they disable the individual from simple skills.
This disease usually appears in old age around 60 years old, it is more common in men and it is not a disease that has a cure but if there are medications that can improve the symptoms, even surgery or stimulation can be given in severe cases in the brain.
Therefore, we can confirm that the neurotransmitter dopamine is secreted by the neurons of the basal nuclei. The degeneration of these neurons results in Parkinson disease.
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What is a prokaryotic cell? Help please
Answer:
A cell whose genetic material isn't found in a membrane bound nucleus.
Explanation:
the _____ model describes the nongradual evolutionary changes in organisms.
The punctuated equilibrium model describes the nongradual evolutionary changes in organisms.
According to the punctuated equilibrium model, species experience long periods of relative stasis or equilibrium, during which little or no evolutionary change occurs, followed by short bursts of rapid evolutionary change.
These rapid periods of change are usually associated with environmental changes or the opening of new ecological niches. The punctuated equilibrium model contrasts with the traditional view of evolution as a gradual and continuous process.
In this model, speciation is a relatively rare event that occurs quickly and results in the formation of new species that are geographically isolated from their parent populations.
This theory was proposed by Niles Eldredge and Stephen Jay Gould in 1972 as an alternative to the gradualism model of evolution proposed by Charles Darwin.
The punctuated equilibrium model is now widely accepted as an important mechanism for explaining the pattern of evolution observed in the fossil record.
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Why do some plants remove water from their cells to reduce the amount of water that freezes inside them during winter?
a. The frozen water constricts organelles and causes plant cells to shrink.
b. As water contracts during freezing, the cells pull away from each other causing damage.
c. Less water in the cells means the cells are smaller and need to do less work.
d. The expansion of water as it turns to ice inside the cells would break the cells apart.
Answer:
b. As water contract during freezing the cells pull away from each other causing damage
\(\Large \boxed{\sf D}\)
The cells would split apart due to the expansion of extra water when it freezes inside them. The liquid inside the cells can freeze and expand when the temperature drops below 0°C. The crop becomes unproductive as a result of the cells breaking.
what does it mean to say that the frequency of allele j in the gene pool is 0.23? group of answer choices genotypes containing allele j have relatively low fitness. all three other answers are correct. 23% of the gametes produced by a random-mating population carry allele j . allele j is recessive.
When it is said that the frequency of allele j in the gene pool is 0.23, it means that out of all the alleles present in the population, 23% of them are allele j.
This also means that in a random-mating population, 23% of the gametes produced will carry allele j. This information is important in understanding the genetic makeup of a population and predicting the probability of certain traits or diseases occurring. It does not necessarily indicate anything about the fitness of genotypes containing allele j or whether allele j is dominant or recessive.
The statement "the frequency of allele j in the gene pool is 0.23" means that 23% of the gametes produced by a random-mating population carry allele j. This value represents the proportion of allele j in the population, and it does not provide information about its dominance, fitness, or any other characteristic.
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the neurotransmitter __________ is vital to proper muscle functioning.
The neurotransmitter Acetylcholine is vital to proper muscle functioning.
Acetylcholine is released by motor neurons at the neuromuscular junction, where it binds to receptors on muscle fibers, leading to muscle contraction. This neurotransmitter is essential for both voluntary and involuntary muscle movements, including those involved in breathing, heart rate, and digestion.
Deficiencies in acetylcholine have been linked to conditions such as myasthenia gravis, a neuromuscular disorder characterized by muscle weakness and fatigue.
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what is the basic building blocks of all living organisms.