Sarah wants to know which brand of nail polish
lasts the longest without chipping. She buys 4
types of nail polish - Essie (which she normally
uses,) Butter, OPI, and Sally Hansen. Every
Sunday for 4 weeks she paints her nails with a
different brand of polish and records how many
days she lasts before she gets her first chip. She
makes sure to use the same bottom coat and top
coat with each type of polish, and she makes sure
to do the same weekly routine each week so that
her nails aren't getting treated more roughly
different weeks.
1. Independent variable:
2. Dependent variable:
3. Hypothesis:
4. Control group:
5. Experimental group:
6. Constants:

Answers

Answer 1

Answer:

Independent variable: Element that influences the appearance of a controlled and evaluable result, such as the enamel that Sarah will use on her nails.

Dependent variable: Element that is influenced by the dependent variable and promotes the visualization of a result, such as the length of time that the enamels can remain on the nail without chipping.

Experimental group: Element that allows the study of the interaction of these variables and the result developed through it, such as Sarah's enamel marks.

Control group: Element where only the independent variable is applied. As the action of the dependent variable does not exist, the observed result is the same that would be perceived if the study was not taking place, such as the day when Sarah did not paint her nails.

Constant: Elements that are exactly the same throughout the experiment, such as the person who conducted it, the time the study will be carried out, the nail care routine and the lower and upper layers of the enamels used.

Answer 2

Answer: Independent variable is the one that is changed and controlled: the nail polish Sarah uses.

Dependent variable is the one that is studied, the result of the dependent variable: how long the nail polish lasts.

Hypothesis is the statement that has to be proved or declined during the experiment: different nail polish lasts a different period of time without chipping.

The control group is the not exposed to changes and the independent variable is part of this group: when Sarah paints her nails (4 Sundays in a row) and the type of bottom coat and top coat as well as the weekly routine.

The experimental group contains the independent variable and it is changed for the group: the type of nail polish.

The constants are Sally since she performs the experiment; the period of research, the routine and the coats.


Related Questions

During meiosis,(fill in the blank) chromosomes separate and go
to different gametes.

Answers

Answer:

homologous

Explanation:

yeah

The homologous chromosomes separate and go to distinct gametes.

Meiosis

• In se-xually reproducing organisms, the formation of egg and sperm cells is known as meiosis.

• In meiosis, the diploid cells go through DNA replication, succeeded by two rounds of cell differentiation, giving rise to four haploid s-ex cells.

• The separation of homologous chromosomes takes place in meiosis I.

• During meiosis I, the separation of homologous chromosomes takes place into two distinct nuclei, resulting in the reduction of ploidy level in the first division.

Thus, the given blank can be filled with homologous.

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What is the role of DNA in transmitting genetic information

Answers

Answer:

The main role of DNA in the cell is the long-term storage of information.The major function of DNA is to encode the sequence of amino acid residues in proteins, using the genetic code.

Explanation:

Which would be a consequence of the removal of predators from a population such as the trinidadian guppy population? see concept 52.5 (page 1185) which would be a consequence of the removal of predators from a population such as the trinidadian guppy population? see concept 52.5 (page 1185) guppies would produce fewer but larger offspring. primary producers such as algae would overgrow. guppy color patterns would change; guppies would produce fewer but larger offspring; the nitrogen excretion rate would increase and the rate of growth of primary producers such as algae would increase. the nitrogen excretion rate would increase. guppy color patterns would change?

Answers

Answer:

Guppy color patterns would change; guppies would produce fewer but larger offspring; the nitrogen excretion rate would increase and the rate of growth of primary producers such as algae would increase.

Explanation:

Guppies color patterns would change and they would produce fewer but larger offspring. Due to the increment, the nitrogen excretion rate would increase and the rate of growth of primary producers such as algae would increase.

a normal colorblind female and a colorblind male have a colorblind girl, what is the probability that they have a colorblind son​

Answers

Answer:

100%

Explanation:

cause both parent are colorblind

What chemical bond most likely stores the mos energy?

Answers

The chemical bond that typically stores the most energy is the covalent bond, specifically the triple bond, as it involves the sharing of the highest number of electrons.

Covalent bonds involve the sharing of electrons between atoms, resulting in the formation of a stable molecule. Within covalent bonds, there are variations in bond strength, which correspond to the amount of energy required to break the bond.

Among covalent bonds, triple bonds are generally the strongest and store the most energy. Triple bonds involve the sharing of three pairs of electrons between two atoms. Examples include nitrogen gas (N2) and acetylene (C2H2), where the nitrogen and carbon atoms form triple bonds, respectively.

The strength of a covalent bond depends on several factors, including the number of shared electron pairs and the types of atoms involved. Bonds with higher bond orders (such as double or triple bonds) tend to be stronger and store more energy compared to single bonds.

It is important to note that other types of chemical bonds, such as ionic bonds and metallic bonds, also play significant roles in storing and releasing energy, but in general, covalent bonds, particularly triple bonds, are known for storing the most energy.

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Place the following events of the light-independent reaction in the correct order (1-4)

Answers

Explanation:

a. Photosystem II Light shining on pigments energizes electrons that come from water.

b. Electron transport chain: High energy electrons move down the chain, which pumps H+ ions to inside of the thylakoid

c. Photosystem I: electrons are reenergized with more light.

d. Electron Transport: the reenergized electrons are transferred to NADP+ to make NADPH

Which of the following best describes the genetic material a person receives from each parent?

Answers

I'm pretty sure an x or y chromosome

the sequence of the coding strand of a dna molecule (that is, the dna strand that contains the codons specifying the protein sequence) is 5'-cggatgctta-3'. what is the sequence of the rna made from this dna?

Answers

Transcription of an RNA strand with the sequence "AUUGCGCGAA" from a DNA strand with the sequence "TAACGCCTT" As a result, C is the correct answer.

Transcription is the process by which mRNA is created from DNA in the nucleus of a cell. The nucleus contains all of the enzymes and nucleotides required for the production of mRNA. The messenger RNA (mRNA) is transcribed from DNA The mRNA sequence generated in a cell from DNA is complementary to the leading strand of DNA, with only the thymine residues replaced by uracil residues. Adenine base couples with uracil residues, and thymine base pairs with adenine residues. Cytosine bases couple with guanine bases and vice versa.

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when elements combine chemically why are they not easily identifiable

Answers

Answer:

they form a radical

Explanation:

radical act as a single unit during chemical reaction..

A frame which is used for ecological sampling

Answers

Answer:

A quadrat is a frame (usually a square or a circle) of known area used to isolate a subset of the population. This subset will comprise one sample. Quadrats come in various sizes (and shapes) with the size selected determined by features of the organisms in the population to be sampled.

Explanation:

hope this helps

Station 7: Fish A) The Origin Of Jaws Was A Key Adaptive Event In Early Vertebrate Phylogeny. Describe The Adaptive Advantage Of Having A Jaw? B) The Endoskeleton Of The Cartilaginous Fish Is Composed Of Cartilage And Lacks Bone Completely. We Know From The Fossil Record That Ancestors Of Modern Cartilaginous Fish Had Bone. Therefore, Lack Of Bone Is Not A
Station 7: Fish

Answers

Station 7: Fish A) The origin of jaws was a key adaptive event in early vertebrate phylogeny. The description of adaptive advantage of having a jaw is it allowed early vertebrates to capture and consume a wider range of food sources.

B) The endoskeleton of the cartilaginous fish is composed of cartilage and lacks bone completely. We know from the fossil record that ancestors of modern cartilaginous fish had bone. Therefore, lack of bone is not a primitive trait.

A) Prior to the development of jaws, early vertebrates could only feed on small, soft-bodied organisms. With the development of jaws, they were able to capture and consume larger prey items, including other vertebrates. This allowed them to exploit a wider range of ecological niches and ultimately led to the diversification of vertebrates.

B) The lack of bone in the endoskeleton of cartilaginous fish is not a primitive trait, but rather a derived trait that evolved later in their evolutionary history. This is known as secondary loss of bone. The adaptive advantage of having a cartilaginous endoskeleton is that it provides greater flexibility and maneuverability, allowing cartilaginous fish to move more efficiently through the water. This is particularly important for predatory species, such as sharks, which need to be able to quickly capture their prey.

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2. A group of individuals that belong to the same species and live in the same area
(5 Points)
organism
population
field study
interaction

Answers

Answer:

Population

Explanation:

A population is a group of organisms of the same species that live in the same area at the same time.

Before Ainura helps her mother take down the yurt what dose she do

Before Ainura helps her mother take down the yurt what dose she do

Answers

Before Ainura helps her mother take down the yurt, she still needs to help pack gear and load it onto the horses.

What is nomadic life?

Nomadic life refers to a lifestyle where people live in a mobile and self-sufficient manner, often moving from place to place with their belongings and livestock in search of resources such as food, water, and shelter.

Nomadic cultures have existed for thousands of years and can be found all around the world, in regions such as deserts, grasslands, and mountains.

With reference to the passage, "They would soon be busy packing gear and packing it onto the horses". this activity should take place before taking down the yurt

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Which of the following coordinate and control immune response?

B lymphocytes

T lymphocytes

antigens

antibodies

Which of the following coordinate and control immune response?B lymphocytesT lymphocytesantigensantibodies

Answers

I think it’s T lymphocytes?
It says: T lymphocytes attack antigens directly and help control the immune response. They also release chemicals, which control the entire immune system....

Answer:

I think it is antigens but i am just guessing.

Explanation:

i don't know for certain that this is the right answer but regardless have a good day

what is the name of the trait that hides or masks another genetic trait?

Answers

A dominant trait will mask a recessive trait.

A dominant trait is the name of the trait that hides or masks another genetic trait.

What do you mean by dominant trait?

Dominance is the phenomenon of one variant of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome.

The dominant trait is the one that is the first to appear or express itself visibly in the organism. Example: In human beings, we observe V-shaped hairline.

Dominant individuals are often most influential in their social groups, affecting movement, opinion, and performance across species and contexts.

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dogs keep themselves cool by panting, rapidly breathing air in and out. panting results in evaporation from moist tissues of the airway and lungs, which cools the animal. measurements show that, on a 35∘c day with a relative humidity of 50%, a 12 kg dog loses 1.0 g of water per minute if it is panting vigorously.

Answers

Since water absorbs heat equivalent to mass times latent heat of evaporation in order to turn into vapor, it results in cooling. This results in a heat loss rate of 37.66 W in watts in Dog.

Evaporation:

Consequently, latent heat of water evaporation

= 2260 x 10³ J / kg or 2260 J / g

Now

1 g of water evaporates during the process,

heat lost = 2260 J

Moreover, heat loses every minute

= 2260 J

So,

Every second, heat is lost

= 2260 / 60

= 37.66 J /s

= 37.66 W

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2 days after a call you realize you forgot to docuent that you checked a pts blood glucoise prior to him refusing transfer and signing refusal form you should?

Answers

Accurate and timely documentation is essential for maintaining patient safety and ensuring continuity of care.

If you realize that you forgot to document that you checked a patient's blood glucose prior to them refusing transfer and signing a refusal form, there are a few steps you should take:

1. Review your organization's policies and protocols regarding documentation. Make sure you understand the requirements for documenting patient care accurately and timely.

2. Consult with your supervisor or a more experienced colleague. They can provide guidance on the best course of action based on your organization's policies.

3. If necessary, inform the relevant healthcare provider who is responsible for the patient's care. This could be the patient's primary care physician, a nurse practitioner, or another appropriate healthcare professional.

4. Document the missed documentation in the patient's record as soon as possible. Be sure to include the date and time of the original incident, as well as a brief explanation of why the documentation was missed.

5. Take steps to prevent similar mistakes in the future. This may involve implementing reminders or double-checking procedures to ensure all necessary documentation is completed promptly.

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Bleeding at the site of a bone fracture results in the formation of hematoma. Usually the blood in a hematoma forms a _____

Answers

Bleeding at the site of a bone fracture results in the formation of a hematoma. Usually, the blood in a hematoma forms a clot.

When there is bleeding at the site of a bone fracture, the body's natural response is to form a hematoma, which is a localized collection of blood. The blood in the hematoma undergoes a process called coagulation, where it forms a clot. This clot helps to control the bleeding by sealing off the damaged blood vessels and preventing further blood loss. The clot consists of a meshwork of fibrin, platelets, and trapped red blood cells.

The formation of a clot within the hematoma is an essential step in the healing process of a bone fracture. It provides a temporary scaffold for the subsequent stages of healing, such as the formation of granulation tissue, callus formation, and ultimately the remodeling of bone tissue.

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helpppppp plsssssssss

helpppppp plsssssssss

Answers

Answer:

the net force would be 45n

Explanation:

20n+25n=45

Convergent plate boundaries can form which of the following?
Rift Valleys
Deep Ocean Trenches
Mountains
Volcanic Island Arcs
New Ocean Floor

Answers

Answer:

Deep Ocean Trenches, Volcanic Island Arcs and mountains

Explanation:

At a convergent plate boundary two plates collides with one another. Based on the type of plate, different features can form at such a margin.

In a continental - continental crust collision, both plates have the same density so, they build up on collision to form a mountain. In an oceanic - continental crust convergence; the oceanic plate is denser and it subducts. This leads to the formation of trenches. Also, here, the subducted plate will melt and a crack within the crust can allow for the melt to reach the surface and solidify to form volcanic Island arcs. Oceanic - oceanic crust convergence is also known.

Some breeds of beef cattle have two color coat color options, red and black, where black is dominant over red. If a black bull (male, Bb) is bred to a red cow (female, bb) what are the predicted coat colors of their offspring?

Answers

Answer: Aa = 50%

aa = 50%

Explanation:

aa is 50% I’m pretty sure

What part of Isaac Newton’s childhood led him to become so defensive and hostile toward any criticism of his work?

Answers

Answer: Issac became stubborn and defensive because of the fierce nature of siblings and commanding nature of his second father and mother. Due to the stubbornness of his family member he had to leave his study in early childhood and engage in farming which he left ultimately to pursue higher studies.

Explanation:

Issac became stubborn and defensive because of the fierce nature of siblings and commanding nature of his second father and mother. Due to the stubbornness of his family member he had to leave his study in early childhood and engage in farming which he left ultimately to pursue higher studies.

PLEASE HELP ME !!!!!!

PLEASE HELP ME !!!!!!

Answers

Answer:

c

Explanation:

I think that it is c, because there is only 1 product

A student wants to test the hypothesis that plants need soil to grow. Identify the independent
and dependent variables for this experiment, and three variables the student should control
during the experiment.

Answers

Answer:

Independent variable: Adding/not adding soil.

Dependent variables: Does the plant grow? Amount of leaves, plant length.

Controlled variables: Type of plant used, amount of sunlight received, pot used for plant, amount of water given, temperature of soil, etc.

Explanation:

Independent variable: The thing that you want to change. To see if plants need soil to grow, you would need to either add or remove soil altogether.

Dependent variables: The thing that is being measured. By adding your independent variable, you should be able to answer certain questions.

Controlled variables: Things you want to keep the same for each experimental group. For example, if you used different plants, your results could be affected negatively as some plants might rely on soil less than others/grow at a slower or faster pace.

Sort the statement based on whether they describe DNA replication in eukaryotes or prokaryotes

Answers

Statements that describe DNA replication in eukaryotes:

Replication takes place in the nucleus.There are multiple origins of replication.Replication occurs at multiple points along the chromosome.

Statements that describe DNA replication in prokaryotes:

There is only one origin of replication.Replication happens at just one point on the chromosome.Replication takes place in the cytoplasm.

What happens in each situation

Eukaryotes: Replication takes place in the nucleus, there are multiple origins of replication, and replication occurs at multiple points along the chromosome.

Prokaryotes: There is only one origin of replication, replication happens at just one point on the chromosome, and replication takes place in the cytoplasm.

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complete question

Sort the statements based on whether they describe DNA replication in eukaryotes or prokaryotes.  

Replication takes place in the nucleus.

There is only one origin of replication.

There are multiple origins of replication.

Replication happens at just one point on the chromosome.

Replication takes place in the cytoplasm.

Replication occurs at multiple points along the chromosome.

Flank steak (beef) is high in connective tissue, yet it is often broiled and served in thin slices as london broil. how is this possible?

Answers

Flank steak, known for its high connective tissue content, can be broiled and served in thin slices as London broil due to proper cooking techniques.

Broiling involves cooking the meat at high heat for a relatively short time. The intense heat helps break down the connective tissue, making the meat tender and more enjoyable to eat.

Thinly slicing the cooked flank steak against the grain further enhances its tenderness. By broiling the flank steak, the connective tissue is effectively softened, resulting in a more palatable texture.

This cooking method allows for the transformation of a tougher cut of meat into a flavorful and tender dish like London broil.

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How do fossil fuels affect the carbon cycle?

Answers

Answer:When humans burn fossil fuels, most of the carbon quickly enters the atmosphere as carbon dioxide. Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world.

Explanation:

Answer:

When humans burn fossil fuels, most of the carbon quickly enters the atmosphere as carbon dioxide. ... Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world.

The burning of fossil fuels from various industrial processes adds nitrogen and nitrous oxide compounds to the atmosphere, which upsets the balance of natural nitrogen, polluting ecosystems and altering the ecology of entire regions. ... This upset in the balance of the nitrogen cycle affects biological diversity.

Explanation:

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What should a writer do when getting stuck while developing a draft?
O A.
Outline what the writer has already written and add more from there.
© в.
Try another brainstorming technique to generate more ideas.
© C.
Select another organizational structure to present the ideas.
• D.
Go back to the beginning of the draft and start again.

Answers

Try another brainstorming technique to generate more ideas which what a writer should do when getting stuck while developing a draft and is denoted as option B.

What is a Draft?

This is referred to as the drawing up of plans and is usually the first writing done by the individual before subsequent corrections are arrangements are done to make the actual writing more meaningful and presentable to the public or the authority involved.

In a situation where a writer gets stuck when writing it, it is best to try  another brainstorming technique to generate more ideas which is the most appropriate choice.

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define the various kinds of organismal interactions (mutualism, cooperation, commensalism, predation, parasitism, amensalism, competition). what is parasitism and how does it differ from predation or amensalism?

Answers

A mutually beneficial connection is known as mutualism. Commensalism is a symbiotic connection in which one organism gains and the other does not.

What are the various species interactions you observe, and how would you describe them?

The three main types of symbiosis—mutualism, commensalism, and parasitism—are included in the word, which also covers a wide spectrum of species relationships. Mutualism is a symbiotic connection in which both parties—or all parties—gain from it. Both compulsory and facultative mutualism exist.

What distinguishes parasitism from predation?

Predation: The predator hunts its victim by exerting great physical effort. Parasitism: The spread of a parasite is typically passive. From the outside, they stalk, kill, and devour their prey.

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which part of the eye contain receptor cells?

Answers

retina

hope its helps

have a good day

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