Joel claims that “Bright White Toothpaste” removes tooth enamel stains better than all other brands. Which of the following should be documented as evidence to support his claim?
1. The amount of toothpaste used
2. The shade of teeth before and after brushing
3. The type of toothbrush used to brush teeth
4. The size of tooth

Answers

Answer 1
2. The shade of teeth before and after brushing

The independent variable in this instance is the bright white toothpaste, and if they’re claiming that it removes stains better than all, then that means that the dependent variable would be the shade of teeth!

The amount of toothpaste, the type of tooth brush, and the size of tooth are all variables of the experiment but will not determine if the claim is supported or not.

Hope this helps:)!

Related Questions

Evaluate if knowing the type of the source of pollution helps make clean-up easier. Justify your opinion in 4-6 sentences and using at least 3 direct quotes from the article.

Answers

The easiest way to get rid of pollution and clean it up is by having everyone recycle cleaning up all the trash that is on the highways and stuff simply start using recyclable objects

Knowing the source of pollution aids in clean-up because the nature of pollutants and how they are recycled differ, so knowing the type and amount of pollutants aids in pollution cleanup.

What is the significance of knowing the types of pollution?

Knowing the source of pollution can make clean-up easier because it allows for targeted and effective removal of the pollutants as it identifies the specific source of the pollution rather than trying to address pollution throughout a wider area. It also helps in determining the most appropriate remediation technique to use, the cost of clean-up, etc.

Hence, knowing the source of pollution aids in clean-up because the nature of pollutants and how they are recycled differ, so knowing the type and amount of pollutants aids in pollution cleanup.

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Unequal heating of the earth by the sun and the earth's rotation cause what?
Group of answer choices

A all answers are correct

B wind belts

C tropical easterlies

D polar easterlies

Answers

Answer:

A) all answers are correct

Explanation:

Wind belts, tropical easterlies , and polar easterlies are all examples of unequal heating of the earth by the sun and the earth's rotation, because they distribute heat or cold unevenly based on the sun heat and the earth's rotation.

It will be A I think

Osmosis is the movement of water from a high concentration to a low concentration.
True or False

Answers

Answer:

yes, it's absolutely true statement

Do particles in a solid have thermal energy?

Answers

Answer:

Yes, but a very low amount because they can only vibrate in place.

Explanation:

Which of the following statements is true?

A.)All plants can make their own food.
B.)Photosynthesis only happens in plant leaves.
C.)Photosynthesis needs light energy to happen.
D.)All of the above.

Answers

Answer:

D.

Explanation:

D. All of the above

this is because plants can make their own food, the leaves make photosynthesis and photosynthesis needs light energy to happen.

How will the tree population change if ALL other organisms (deer, bears, and mushrooms) are removed from the forest?

Answers

Answer:it wont have animals living in it

Explanation:

By getting rid of animals, the tree population will increase. This is because animals usually eat the plants and trees etc. Also, the tree may not survive.

Pls help due soon: Why is the moisture of cirrus clouds mostly in the solid state?

Answers

C The higher attitude and farther distance from earths surface mean there’s less gravity to from ice crystals
Can I please get brainliest

The moisture of cirrus clouds mostly in the solid state as the higher altitude allows for lower temperatures, leading to frozen water crystals. The correct option is A.

What are cirrus clouds?

These clouds indicate that the weather is favorable. They are distinguished by their high altitudes, which reflect the direction of the wind, which moves them and constantly changes their shapes.

The higher they are, the lower the temperatures; son water vapor condenses into crystals, which are blown in different directions by the wind.

Cloud formation occurs when humid air ascends and experiences adiabatic cooling due to the high temperature.

Because the density and pressure of the air decrease as altitude increases, the air tends to expand with elevation in response to the reduced pressure.

Gases in expansion experience adiabatic cooling, losing caloric energy as their molecules move further apart. As the air rises, it becomes colder and thus denser.

Thus, the correct option is A.

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The self-regulation of the internal environment of organisms or cells is called _____________.

Answers

Answer:

Homeostasis

Explanation:

O∵ 3 ∵O

Homeostasis hope that helped you out

Which statement is true of both the desert and tundra biomes? They both have –

very low temperatures.
very low temperatures.

four seasons.
four seasons.

very low precipitation
very low precipitation

high biodiversity.

Answers

Answer:

Very low precipitation

Explanation:

Answer

Very low precipitation

Explanation:

Which statement below best describes the connection between photosynthesis and respiration? *
1 point
Both have the same products.
Both have the same reactants.
Both require energy from the sun.
The products of one are the reactants of the other.

Answers

Answer. D. The products of one of the reactance of the other.
Explanation. The products of respiration include: glucose, oxygen and carbon dioxide. On the other hand, the reactants of photosynthesis also include: glucose, oxygen and carbon dioxide. Hope this helps, let me know if it’s correct so others can use it:)
Good luck.

Plz help i will give brainliest. Thank you to however helps and its 30 points

Answers

It helps u understand because it shows the different embryos showing different features.
It shows different ones that’s how it helps you

If a cell was to have it's plasma membrane freeze, why would the cell die?

Answers

When frozen, it becomes more rigid, restricting cell movement and even stopping the transfer of materials through the cell membrane.

Plants could not live if they were unable to get water and nutrients from soil. In some places, especially deserts, these resource are in short supply so plants must compete with each other for them. Which of the following is an actual strategy used by plants to keep competitors from being a problem?
A) Having very spiky parts above ground

B) Releasing ‘plant poisons’ (herbicides) from their roots into the soil

Answers

this would be A, herbicides is a chemical used by humans not plants!

Answer:

A is your answer.

Explanation:

Hope this helps!

Please mark me brainliest!!!

. What provides most of the water for the water cycle?
This is the text PLEASE HAS TO BE TURNED IN IN 5 MIN

Answers

Answer:

The sun, which drives the water cycle, heats water in the oceans. Some of it evaporates as vapor into the air. Ice and snow can sublimate directly into water vapor.

Explanation:

the sun because without it the water cycle would be quite hard/way more difficult if not impossible.

Here is a cause: You look straight at a bright, shiny object when a beam of light bounces off of it. What is the effect?

Answers

The answer is reflection, since its bouncing
Since you said the light is bouncing off, this should tell you that the effect is “reflection” ❤️ hope this helps

What is NOT a way the body maintains homeostasis?

a
Developing a fever to kill off an infection.
b
Sweating to cool the body's temperature
c
Shivering to warm up the body
d
Eardrum vibrating to hear sound

Answers

Letter a is the answer
The answer is D, hearing sound has nothing to do with homeostasis.

Which of the following would be a correct statement about an ecosystem?

My house is an ecosystem because I live in it.

California is an ecosystem because there are many types of climates, plants, and animals.

The forest is an ecosystem because the animals interact with the trees, which interact with the soil and water, which interacts with other animals.

A museum is an ecosystem because you interact with the exhibits.

Answers

Answer:

The forest is an ecosystem because the animals interact with the trees, which interact with the soil and water, which interacts with other animals.

Explanation:

this answer is the right one because it is the only one that is actually a ecosystem

c. The forest is an ecosystem because the a animals interact with the trees, which interact with the soil and water, which interacts with other animals.

Without external forces, the third generation of a bacterium and the original parent cell will have approximately ________ matching DNA sequences.(1 point)

33%

12.5%

100%

25%

Answers

approximately 33% matching DNA sequences

Answer:

33%

Explanation:

A chimpanzee and a pine tree have very little in common. However, because they are both living things, we can be certain that they both -use the sunlight to make their own food.travel with other members of their species.are made up of one or more cells.have a skeleton which allows them to move.

Answers

It is true! Very interesting

A student noticed that a potato left on the counter had begun to sprout. She decided to cut the potato into chunks and plant them. What is true about the plants that grew from this method? (Pick two)
All the plants are genetically unique.
All the plants have identical genetic information.
The original potato regenerated into several plants.
The new potato plants are the product of asexual reproduction.
The new potato plants are the product of sexual reproduction.

Answers

B and C are the ones I’d choose

Both species benefit in the type of symbiosis called parasitism. Please select the best answer from the choices provided T F

Answers

The statement “both species benefit in the type of symbiosis called parasitism” is false.

Parasitism is a type of symbiosis where one organism is harmed while the other benefits.

An example of parasitism is a dog infested with ticks.

The ticks benefit from drinking the dog’s blood, harming the dog in the process.

Describe two things that would happen in an ecosystem if there were no unicellular organisms. Explain why something with only one cell can be considered to be an organism.

Answers

Unicellular organisms include bacteria, protists, and yeast. For example, a paramecium is a slipper-shaped, unicellular organism found in pond water. It takes in food from the water and digests it in organelles known as food vacuoles. Nutrients from the food travel through the cytoplasm to the surrounding organelles, helping to keep the cell, and thus the organism, functioning. Multicellular organisms are composed of more than one cell, with groups of cells differentiating to take on specialized functions. In humans, cells differentiate early in development to become nerve cells, skin cells, muscle cells, blood cells, and other types of cells. One can easily observe the differences in these cells under a microscope. Their structure is related to their function, meaning each type of cell takes on a particular form in order to best serve its purpose. Nerve cells have appendages called dendrites and axons that connect with other nerve cells to move muscles, send signals to glands, or register sensory stimuli.  Outer skin cells form flattened stacks that protect the body from the environment. Muscle cells are slender fibers that bundle together for muscle contraction. The cells of multicellular organisms may also look different according to the organelles needed inside of the cell. For example, muscle cells have more mitochondria than most other cells so that they can readily produce energy for movement; cells of the pancreas need to produce many proteins and have more ribosomes and rough endoplasmic reticula to meet this demand. Although all cells have organelles in common, the number and types of organelles present reveal how the cell functions.

Hope that helps!!

If there were no unicellular organisms available in the ecosystem then there will be no atmospheric nitrogen fixation and no recycling of organic matter into plant usable products.

Unicellular organisms are small single celled organisms that can be observed through microscope but not with naked eye. The unicellular organisms are bacteria, fungi, virus, and protists. If no unicellular organisms are present in the ecosystem then there will be no nitrogen fixation by the soil bacteria like Nostoc, Cyanobacteria, and others. Since, plants cannot utilize atmospheric nitrogen directly so these bacteria convert the atmospheric nitrogen into plant usable form that is ammonia. When no soil bacteria present in the soil ecosystem then the plants will not be able to grow as ammonia is a chief ingredient of many biomolecules in plants. If there will be no unicellular organisms then there will not be any decomposition process of the organic matter and the waste of dead animals, plants, and other living beings will not recycle into plant usable form this will limit plant growth and will also affect the natural cleaning mechanism of ecosystem. Only one cell can be considered an organism if it shows characteristics of an organism like food intake, respiration, reproduction, and growth.

Hence, if there were no unicellular organisms available in the ecosystem then there will be no atmospheric nitrogen fixation and no recycling of organic matter into plant usable products.

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Which of the following is NOT one of the major land biomes? a. tropical rain forest c. temperate grasslands b. temperate savanna d. temperate deciduous forest

Answers

Answer:

Temperate Savanna.

Explanation:

Savanna is not temperate, it is also called tropical grasslands, further supporting my answer. It is PART of the kinds of grasslands, So because it is a part, it is not a major Biome.

Temperate savanna is not the major land biomes.

What is Biomes?

Some of the electrons in metallic atoms are held there quite loosely. As a result, they frequently lose electrons and generate cations. In contrast, most nonmetallic atoms have a stronger attraction to electrons than do metallic atoms, and as a result, they gain electrons to form anions.

As a result, when two atoms from a metallic and a nonmetallic element unite, the nonmetallic atoms usually tend to take one or more electrons from the metallic atoms and create ions.

One-third of the Earth is covered in forests, which are primarily made up of trees. A large portion of the terrestrial biodiversity of the planet, including insects, birds, and mammals, is found in forests.

Therefore, Temperate savanna is not the major land biomes.

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QUICKKKK ILL MARK BRANLIEST!!!!​

Answers

The answer is B I believe
B
I think ..............

QUICKKK ILL MARK BRANLIEST!!!​

Answers

It is not A because plants don’t eat animals, and it’s not B because only bacteria do that. It’s C, because plants go through photosynthesis to make their own foood.
The answer is C because plat make their own food through the peocess of photosynthesis

HELP PLEASE ASAP!!!! I don't understand this

Answers

Answer: D

Explanation: you got the one you click on right so no changes needed.

What is the element name for 3.3%

Answers

Answer:

Nitrogen

Explanation:

I DONT UNDERSTAND GENOTYPES AND PHENOTYPES HELP

Answers

If there’s a capitol in both the answer will be both capitals if one has one capital and the other has two lower. Case then it will be one capitol and one lower case. If both have two lower case is lower case. Ex: mom: Rr dad : Rr the child will have RR bc it’s dominant. If mom Rr and dad rr then child will be Rr. And if both are rr so will the child
Genotypes- is an individual's collection of genes.
Phenotypes- the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.

can anybody help me, please

Answers

Answer:

food, producers, water, dioxide, oxygen, consumers, energy, predators, prey, lion,  wildebeest.

Explanation:

these are in order

Answer:

food, producers, water, dioxide, oxygen, consumers, energy, predators, prey, lion, and wildebeest in that order

Explanation:

Why is it important to understand how different body systems interact when developing a training plan?​

Answers

Answer:

Because some people cant handle as much as other peopl.

Explanation:

You could overrun somebody by pushing them to hard. But you would'nt know if they had asthma in their lungs that just happened. Or if the person had an unknow health complicagtion.

you can’t make a plan without knowing how everything will react. you need to be sure everything will work together and do what you want it to for the best outcome
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