Answers
As the sample size is increased, the bias will become smaller because it is inversely related to the population variance.
The population variance divided by N, the sample size, yields the variance of the sampling distribution of the mean (the number of scores used to compute a mean). Therefore, the variance of the sampling distribution of the mean is lower the higher the sample size. The sampling distribution tends to become normal as sample size rises. As a result, the sample distribution takes on a leptokurtic appearance. It only occurs because the variability diminishes as sample size increases since the distribution of the samples closely mimics the population. A chi-squared distribution with a degree of freedom equal to n1, where n is the sample size, represents the sampling distribution of the sample variance (given that the random variable of interest is normally distributed).
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Related Questions
How are the carbon, nitrogen, and oxygen cycles similar?
a. They are all biogeochemical cycles.
b.
They all involve an interaction between living and nonliving elements.
C. They are all part of the Earth system.
d.
All of the above.
Answers
Answer:The answer is b they all involve an interaction between living and nonliving elements.
Answer:
D
Explanation:
its just D
In anatomy, -tomy means:
Answers
Answer
cutting or incision
for example: gastrotomy means a surgical incision to the stomach
Answer:
: of or relating to anatomy or the body structure of organisms anatomical studies/structures/mechanisms The mollusks are divided according to common anatomical traits into seven classes.
Explanation:
O Consider the diagram that depicts the lysogenic and lytic cycles. The steps of the lysogenic cycle are shown. In Step A, attachment and entry occurs. In step B, the provirus is formed. In step C, the cell begins to divide. In step D, the provirus leaves. In step E, the virus is replicated and assembled. In step F, lysis and release of the virus occurs. In which step of the diagram is the provirus formed? step A step B step E step F
Answers
The correct answer is Step B
Explanation:
The lysogenic and lytic cycles are processes of replication for viruses. These two processes involve different steps. In general, the first stage involves attachment and penetration as the virus enters the host cell. This step is followed by the provirus, which means the genome of the virus is integrated into the DNA of the cell, this step is also mentioned in the model as part of step B "the provirus is formed". Moreover, the formation of the provirus is key as the nutrients of the host cell and genome are used for replication. Thus, in the diagram, the provirus is formed in step B.
Answer:
step b on edge is your answer
Explanation:
can i get a brainliest?
Bioluminescent fish live mostly in the ————
zone where the sunlight is very low.
Answers
Answer:
the twilight zone or the disphotic
Explanation:
This zone has very lowsunlight
i need an answer asap my exam is tomorrow
I solved the first three pls answer the rest
fill in the blanks:
When muscles of the stomach contract, food is broken down_____________________.
The stomach produces _____________________ that break down the food chemically.
Digestion of food is completed in the __________________________. Digestive juices
produced by the liver and the ________________ allow the __________________
digestion of food. Nutrients are now ready to be absorbed into the ________________.
Answers
second last ans is push the mixture forward which allow the further digestion.
last one's ans is bloodstream
Mark this and return
How is energy related to the change of state
represented by the model?
O Atoms gain energy as a gas changes to a solid.
Atoms gain energy as a gas changes to a liquid.
Atoms lose energy as a gas changes to a solid.
Atoms lose energy as a gas changes to a liquid.
Answers
The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.
What is Atoms?A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.
The atoms in this process move from a higher-energy state to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.
Therefore the correct option is d.
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Natural selection is a process by which organisms that are better adapted to their environment tend to
increase in size.
migrate.
evolve new traits.
survive.
Mark this and return
Answers
Answer:
Survive is the correct answer
Explanation:
Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others. Individuals with adaptive traits—traits that give them some advantage—are more likely to survive and reproduce. These individuals then pass the adaptive traits on to their offspring. Over time, these advantageous traits become more common in the population
A scientist is studying some developing eggs from an ocean sample. The early embryos have divided only a few times, and all cells look identical. When the scientist carefully removes half the cells from an embryo, both clumps of cells are able to complete development, forming twins. The eggs can be identified as cnidarians. crustaceans. protostomes. deuterostomes. echinoderms.
Answers
Answer:
The correct answer is - deuterostomes.
Explanation:
Duetorstomes eggs ,During embryonic development the zygote undergoes cleavage. Cleavage results is slitting into multiple cells where ease cell has the ability to develop into a complete embryo when isolated.
Describe the journey of a carbon atom through all four of Earth's spheres, beginning with carbon dioxide gas in our atmosphere, and ending as part of a marine snail shell .
PLEASE ANSWER FAST WILL GIVE BRAINLIEST!!!!!
Answers
Answer:
The carbon cycle
Explanation:
on land a flow of carbon from the atmoshpere to plants with a subject called photosynthesis, then it flows back to the atmosphere. It does this with plant and animal respiration and decomposition.
1. Photosynthesis occurs in a plant cell's (1 point)
A. ribosomes.
B. chloroplasts.
C. nucleus.
D. cell wall.
2. Which option is a light wavelength that chlorophyll dose not absorb.
A. Green
B. Violet
C. Yellow
D. Red
3. Which ingredients are needed to transform NADPH+
NADPH
A. An electron and two hydrogen ions
B. Two electrons and a hydrogen ion
C. an electron and a hydrogen ion
D. Two electrons and two hydrogen ions
4. Supposed you seal a House plant in a transparent glass container. What about the scenario would lead to the plants death.
A. A lack of light
B. A lack of oxygen
C. A lack of carbon dioxide
D. A lack of sugars.
Answers
2. Green
3. 2 electrons and 2 hydrogen ions (?)
4. Lack of carbon dioxide
Plants carry out photosynthesis in the chloroplasts which contain the green pigment called chlorophyll. photosynthesis involved taking in carbon dioxide.
Green plants produce their own food by taking energy from the sun. The wavelength that the plant takes in is the green wavelength and the process occurs in the chloroplasts which contain chlorophyll.
NAD and NADH are involved in the electron transport chain and the conversion of one to the other involves oxidation and reduction. Two electrons and a hydrogen ion are involved in this process.
Plants require carbon dioxide to carry out photosynthesis. In a transparent glass container, the plant can have access to light but not carbon dioxide which is required for photosynthesis. A lack of carbon dioxide will make the plant to die.
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Organisms that complete the final breakdown and recycling of organic materials from
the remains of all organisms are the
detritivores
omnivores
decomposers
O carnivores
Answers
Answer:
decomposers
Explanation:
These are heterotrophic organisms that feed on dead animals and plants, secretions, or discarded parts of living beings, that is, organic matter.
And they break it down into inorganic.
Thus, inorganic substances that can be reused in the process of photosynthesis are returned, recycled, to nature.
in which biome are minerals in the soil most rapidly depleted
Answers
Answer:
Boreal forest is among the largest terrestrial biomes on earth in which minerals in the soil most rapidly depleted.
Transcribe the following (DNA ⇒ mRNA);
GCG TAT GGC
Answers
Answer:
CGC AUA CCG - RNA
CGC ATA CCG - DNA
Explanation:
Uracyl (U) is present in RNA instead of Thymine (T)
Also opposite RNA/DNA molecules pair with each other.
Adenine pairs with Uracyl (RNA)/Thymine (DNA)
Cytosine pairs with Guanine (both RNA & DNA)
construct an argument about the effect of changing a section of rainforest into a cultivated field. Use the word community as it is used in the context of biology at least once in one of the premises of your argument
Answers
Premise 2: Changing a section of the rainforest into a cultivated field alters the balance of the ecosystem, which can have negative effects on the community.
Premise 3: The community of living creatures in the rainforest includes not only the animals and plants that directly inhabit the area, but also the microorganisms and other organisms that play important roles in maintaining the ecosystem.
Conclusion: Therefore, converting a section of the rainforest into a cultivated field can have serious consequences for the entire community, including the loss of biodiversity and ecosystem services, such as carbon storage, water regulation, and climate regulation. Additionally, the disruption of the rainforest can lead to the displacement of animals and plants, causing further harm to the community. Overall, it is important to carefully consider the impacts that altering the rainforest can have on the community and planet.
Your friend is standing on the other side of a canyon. If an Echo returns in 0.15 seconds and the temperature is 25°C. How far away is you from your friend?
Answers
The distance from you to your friend is approximately 22.5 meters.
The speed of sound at 25°C is about 343 meters per second. The time it takes for the sound to travel to the other side of the canyon and back is 0.15 seconds, so the total distance traveled by the sound is twice the distance between you and your friend. Using the equation distance = speed x time, we can calculate the distance between you and your friend as follows:
distance = speed of sound x time / 2distance = 343 m/s x 0.15 s / 2distance = 22.5 metersTherefore, your friend is approximately 22.5 meters away from you across the canyon.
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¿What are Vertebrates?
Answers
\({\huge \underline{{ \fbox \color{red}{A}}{\fbox \color{green}{n}}{\fbox \color{purple}{s}}{\fbox \color{brown}{w}}{\fbox \color{yellow}{e}}{\fbox \color{gray}{r } }}}\)
They are further classified into: fish, amphibians, birds, reptiles and mammals.
I hope I've helped : )
Which of the following is the name of a type of chromosomal mutation and a type of gene mutation?
A. Deletion
B. Inversion
C. substitution
Answers
Answer:
The name of a type of chromosomal mutation and a type of gene mutation is:
Deletion
What are three reasons why early hominin fossils are so hard to find? (max 3 sentences)
Answers
Answer:
Early hominin fossils are hard to find for several reasons. First, the geological processes of erosion and sedimentation can destroy or bury fossils, making them difficult to access. Second, early hominins likely had low population densities, so the chances of fossilization were relatively small. Finally, the habitats in which early hominins lived, such as forests and savannas, are not conducive to fossil preservation, as the organic materials are quickly decomposed by microorganisms and the elements.
Do all offspring from the same parents inherit identical variations of a trait
Answers
When chromosome pairs randomly align along the metaphase plate during meiosis, each member of the chromosome pair contains one allele for every gene. Each gamete will receive one copy of each chromosome and one allele for every gene.
Answer:
No, children of the same parents do not all have the same variations of a trait. This is so because each child receives a certain gene combination from each of their parents, and features are frequently controlled by the interaction of several genes. Furthermore, environmental influences can still affect how a feature manifests in two offspring even if they share the same gene combination for that trait.
In the above animal cell, what is the function of the cellular organelle labeled with the letter Z? A. contains the cellular DNA B. provides the cell with energy C. digests cellular wastes D. packages and distributes proteins and lipids
Answers
Answer:
a - contains the cellular dna
Explanation:
i got it right on study island
Answer:
provides the cell with energy
Explanation:
PLS I NEED HELP!! I GOT C,D, AND E WRONG CAN SOMEONE HELP ME GET THE CORRECT ANSWER?
Answers
Answer:
D.tRNA
E.codon
C.amino acid
Answer: E. - codon is when three nucleotides get together from units of genet codes .
Explanation:
E -Codon is when three nucleotides get together from units of genet codes .
9. Since the aphotic zone does not receive enough sunlight for photosynthesis, plankton are not present.
What is basis of the food chain here?
Answers
Answer:
The answer is detritus.
Explanation:
Glycogen, amino acids, cholesterol, and fat-soluble vitamins are
stored in the
Answers
Answer: Muscles
Explanation: the body transforms carbohydrates into glycogen that is in tun stored in the muscles for energy
Help quick!! Will give brainst!!
Answers
Answer:
combustible ....................
Answer:
B TRANSPARENT THANK ME LATER GOD BLESS
Drag each tile to the correct box.
Arrange the steps of extraction of DNA in the order in which theyshould be performed:
1. pour off the ethanol
2. dissolve the precipitate in buffer or water
3. blend the sample
4. add protease or sodium acetate
5. add the detergent
6. add ethanol
7. centrifuge the sample
Answers
Liquefaction, separation, precipitation, and purification are the four steps in order for extracting DNA. The process of lysis releases DNA-containing cells.
How is ethanol taken out of a DNA sample?In light of all these factors, we have discovered a straightforward method to eliminate ethanol by performing a DNA denaturation and renaturation operation. The procedure involves heating the DNA solution for a brief period of time at 80 C.
Why do we extract DNA with ethanol?The primary function of monovalent cations and ethanol is to dissolve the DNA's solvation shell, allowing the DNA to precipitate as a pellet. Moreover, ethanol encourages DNA aggregate formation. The amount of ethanol solution utilized during the DNA washing procedures is typically around 70%.
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Which of the following particles has a negative charge?
A.
Nucleus
B.
Neutron
C.
Electron
D.
Proton
Answers
Answer:
C. Electron (e-) has a negative charge
Answer:
c
Explanation:
True or False: The Salk polio vaccine (IPV) is considered to be much safer but less effective than the Sabin polio vaccine (OPV).
Answers
Although it is believed that the Salk polio vaccine (IPV) is far less harmful than the Sabin polio vaccine (OPV). It's true.
There are two different polio vaccines available: the Salk vaccine, which uses a killed virus, and the Sabin vaccine, which uses a live but attenuated (or weakened) virus. Many nations switched to the safer IPV vaccine as a result of the possibility of OPV-associated paralytic polio. While IPV is less effective at preventing transmission than OPV5 because it triggers a considerably lower mucosal immune response, it is still quite protective against illness.
By using IPV-OPV instead of OPV, paralysis cases associated with OPV may be reduced by 54% to 100% without impacting vaccination rates, the frequency of significant adverse events, or humoral immunity. However, for some strains of polio, it might worsen mucosal immunity.
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In the early years, when photo processing was a core activity for industry firms, Kodak was known to be better than most others at the process and therefore benefited due to this superior photo finishing process. This speaks to what aspect of the strategy DNA
Answers
Answer:
In photography the act of printing of developing a photograph is called photofinishing process.
In the aspect of DNA the process whereby the exact copies of genes sequences present in DNA is transferred and copied to the mRNA for subsequent synthesis of needed protein is called Transcription.This is a process of gene expression in the cells.Therefore if photofinishing involves the copying or reproduction of images, then the reproduction of gene sequences of DNA as RNA can be linked to transcription of DNA to RNA.
Explanation:
A city is deciding on a new power source to generate electricity. The table describes some of the posiive and negative impacts of diferent types of fuel.
The city decides on the top three critia for the power plan. The plant must provide reliable energy for the city, have minimal impact on he local enivorement and have a unique desgin that will attract tourist. Which form of energy will fit all of the town's criteria?
Answers
All of the town's requirements are satisfied by fossil fuel as an energy source. This plant will be able to supply the city with consistent electricity, will have no effect on the local economy, and will be distinctive enough to draw tourists.
Oil, coal, and natural gas are examples of non-renewable fossil energy resources that were created when extinct prehistoric plants and animals were progressively buried under layers of rock.
Coal and gas are the two main sources of electricity production worldwide. Among the low-carbon energy sources, hydropower and nuclear power contribute the most, however wind and solar power are expanding swiftly.
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Secondary sex characteristics are traits that
O occur later in development
O are not visible
occur for only some people
O are not directly related to fertility
Answers
Answer:
Occur later in development