NEED HELP PLZZ ASAP

Read the Vitamin D experiment. What variables would you need to control in order to make the experiment reliable?​

Answers

Answer 1

Answer:

Make sure everyone meets criteria.

Not taking supplements( As some may contain Vit D)

No tanning beds

make sure no one has a hypoactive response to vitamin d through whatever way. Injection, capsule, spray.

Check for genetic conditions or cancers like melanoma which indirectly affect vitamin d levels

Explanation:

These are some of the main things to look out for

Answer 2

Answer:

that other guy is right he deserves brainliest.

Explanation:


Related Questions

The ADP-ATP cycle is critical to producing cell energy. What do you know about this cycle

Answers

Answer:

The overview of the given question is described in the explanation section below.

Explanation:

ADP-ATP seems to be the energy-producing process wherein the energy is generated by transferring Adenine triphosphate (ATP) with Adenine diphosphate (ADP). Because once cell power is consumed, the station started the accessible ATP with ADP and phosphate.Power becomes generated from either the partially decomposed molecule of phosphate. Afterward when ADP has always been transferred to ATP by mitochondria utilizing energy from food.

Which of the following is considered a benefit to using wind energy as a source of power

Answers

Answer:

Wind energy does not pollute

Explanation:

Match the characteristics of the biome to the type of rainforest


___ weather year around is warm and humid


____ received about 200 inches of rain a year


___ trees are mostly coniferous


___ greatest variety of

uniquely adapted organism

Answers

Answer

-tropical

-temperate

-temperate

-tropical

Tropical biome year around is warm and humid. Temperate biome received about 200 inches of rain a year, temperate biome are mostly coniferous, and tropical biome have greatest variety of uniquely adapted organism.

What are the topical and temperate biomes?

The tropical rainforest biome mainly shows four main characteristics which include very high annual rainfall, high average temperatures, nutrient-poor soil, and the high levels of biodiversity that is species richness.

The temperate forest biome is one of the world's major habitats or biomes. Temperate forests are generally characterized as regions with the high levels of precipitation, humidity, and a variety of deciduous trees. In this biome, decreasing temperatures and shortened daylight hours in the fall mean decreased photosynthesis for the plants.

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What tool is used to track inherited traits between parents and offspring? Allelic pair Family tree Pedigree chart Punnett square

Answers

Answer:

pedigree  chart

Explanation:

A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors from one generation to the next

Answer:

The answer would be C) Pedigree Chart

Explanation:

Do you do FLVS? And this answer is right

Suppose a new bacterial species is discovered that is spherical in shape, survives drought by forming a thick outer wall, and cannot survive without oxygen. Using vocabulary terms from this lesson, describe this species to a scientific audience.

Answers

Answer: This bacterial species is in the shape of a cocci because it is spherical in shape, it forms an endospore during droughts to survive, and is an obligate aerobe because it cannot survive without oxygen.

Explanation: I hope this is right or helps, plz mark brainliest(:

Which term best describes the temperature and weather conditions of an organism’s environment?

Answers

It includes physical factors like air, soil and water; forces like wind and gravity; and conditions like temperature, intensity of light, moisture, or salinity. Thus, temperature and weather conditions of an organism's environment is best described by abiotic factors.

physical factors,forces & conditions,such as air,soil & water,gravity & nature,temperature,light intensity,moisture or salinity.aboitic factors best describes the conditions for an organism's environment

Many species of aquatic snails secrete a slime and are adapted to live in coastal regions. Rather than swim, they move along the ocean floor in shallow water, wedging themselves into crevices or burrowing into sand. What could happen to these snails if they did not have these adaptations?
A) Constant wave action could cause the snail body temperature to increase.
B) Constant wave action could wash the snails into the open ocean.
C) Exposure to air at low tide could cause snails to lose access to oxygen.
D) Exposure to air at low tide could prevent the snails from consuming seaweed.

Answers

Answer: B- Constant wave action could wash the snails into the open ocean.

Explanation:

Answer:

the answer is B.

Explanation:

The waves would just wash them into open oceans with out those adaptations, hope this helps. :)

What methods would the body use to provide a person with energy throughout a race?

Answers

Ventilation, increased heart rate

How many genes are required to
determine a polygenic trait?
A. one
B. two or more
C. several thousand

Answers

Answer:

B

Explanation:

Two or more genes are required to determine a polygenic trait. Thus, option B is correct.

How Human sex gets decided?

Human sex gets decided by the function of SRY gene which possessed by with or without of Y chromosome. The hormone of anti-mullerian and testosterone produced from cells when activating the SRY gene. It generally confirms the development of single-male reproductive systems.

The scenario in humans, the sex ration gets affected by the male parent's hormone level. Also, in XY sex evaluation system, the sperm of male takes part in X or Y chromosome whereas the ovum from female contributes to X chromosome. This greatly results in offspring - either male (XX) or female (XY).

She creates the Punnett square cross below to show sex inheritance. She come to know that both parent determines the sex of a baby and it is when you put xx and xy on a punnet square there are equal amounts male and female.

Therefore, Two or more genes are required to determine a polygenic trait. Thus, option B is correct.

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how could technology resulting from scientific research reduce the impact of human activities on the environment

Answers

Answer:

Technology made specifically to stop something is more effective because i is tailored speciffically to a certain problem, if you want to stop using a power plant toxic to the environment you can use solar panels, if you want to stop the radiation from microwaves you can study how the waves are given off and make a technological improvement to stop it. If you make a small improvement it can change the course of the world just look at cell phones or even indoor pluming.

Explanation:

Prokaryotic cells have different internal structures than eukaryotic cells. Which of the following is/are found in eukaryotic cells but not prokaryotic cells?

1.nucleoid region
2. Cytoplasm
3. Membrane
4. Ribosomes

Answers

answer is going to be “Membrane”

Answer:

Membrane-bound organelles

Explanation:

Prokaryotic cells are simpler than eukaryotic cells. They have some similarities, however. They both have a nucleoid region, genetic material, ribosomes, a plasma membrane, and cytoplasm. Prokaryotic cells don't have membrane-bound organelles.

Which statement about solar eclipses is false?
Select one:
a. They occur during the full moon phase.
b. They last only a few minutes.
c. They may be partial or total eclipses.
d. They are rare

Answers

Anwser is B bc they can last way more than a few minutes

Answer:

A solar eclipse occurs when a portion of the Earth is engulfed in a shadow cast by the Moon which fully or partially blocks sunlight. This occurs when the Sun, Moon and Earth are aligned. Such alignment coincides with a new moon (indicating the Moon is closest to the ecliptic plane.[1] In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses, only part of the Sun is obscured.

Explanation:

Most students have trouble with understand that HCl and Bile are not enzymes. They do allow for structural changes of the substrate, but they do not change the chemical breakdown of the substrate (breaking bonds. Describe your experience: 1. How comfortable do you feel about the statement that was just made? 2. What is a catalyst? Do you think that HCl and Bile are catalysts? Explain. 3. Using your own example, make an analogy explaining, to an 8-year-old, the concept of how a chemical will cause mechanical breakdown of a substance but not a chemical breakdown.

Answers

Most students have trouble with understand that HCl and Bile are not enzymes. They do allow for structural changes of the substrate, but they do not change chemically breakdown the substate (breaking bonds)

Bile salt is  a fat emulsifier.It has an hydrophobic end  which points towards lipids and hydrophilic ends towards water.With this arrangement, the structure of fatty acid is modified in such a way that  the lipid is well distributed and scattered in  water.However, the chemical bonds in the lipids are not affected by the bile salts, because, bile did not  breakdown the chemical bonds in lipids to form new compound, its only changes  the food physical structure for easy digestion.

Describe your experience:

How comfortable do you feel about the statement that was just made?

What is a catalyst? Do you think that HCl and Bile are catalysts? Explain.

Using your own example, make an analogy explaining, to an 8-year-old, the concept of how a chemical will cause mechanical breakdown of a substance but not a chemical breakdown

Answer:

1.The statement means that,HCL and bile, which change the pH nature of the digesting food, and emulsify  the digesting food respectively, only allow for structural changes in these  food materials,but do not break or make new bonds between the components of the food substances.Therefore they  do  not formed new substances, but rather modified the  food substances, no chemical reaction occurs  but  their effects only aids  the process of digestion.

When a substances increases or speed up the rate of organic chemical reactions, but  do not undergo any permanent changes in it chemical structure, in the course of catalysis, the substance is called a catalyst.

During digestion, HCL activates precursor pepsinogen to enzyme pepsin , which aids protein digestion  in the stomach. HCL is not a catalyst,But acts  to aid the action of an enzyme , by  activating its precursor, for digestion to take place,The acid does not form a new compound.

Bile is an emulsifier , which aids the digestion of lipids  by forming to tiny globules for easy digestion. It does not form a new product, but rather modified the existing product for easy digestion.

Explanation:

Logan combines hydrogen chloride (HCL)and calcium hydroxide Ca (OH)2. As a result a reaction occurs and new substance are formed. which substance would be produced from such a reaction ?

Answers

Answer:

This Would be H2O and CaCL2 the first one

Explanation:

The essence of
is
that everything works
together to create an
ecosystem where all
organisms can survive and
thrive.
A. interdependence
B. evolution
C. ecology

Answers

the answer is ecology

How do geologists use satellites?

Answers

Answer:

Satellite imagery and aerial photography have proven to be important tools in support of mineral exploration projects. They can be used in a variety of ways. Firstly they provide geologists and field crews the location of tracks, roads, fences and inhabited areas.

Explanation:

Answer:

Mining and Satellite Imagery. Satellite imagery and aerial photography have proven to be important tools in support of mineral exploration projects. They can be used in a variety of ways. Firstly they provide geologists and field crews the location of tracks, roads, fences and inhabited areas.

Choose the correct description for each phase of mitosis

Answers

Answer:

Explanation:

C, it has yet to split apart so the spindle fibers are yet to exist and they haven’t split apart yet

C omg I swear I thought I was the only one using E 2020 this sux

Why is a flask is wider on the bottom than on the top

Answers

Answer:

the contents inside will change temperature quicker because of the greater surface area exposed to the heat or cold and with a smaller top you can have and easier time containing the contents inside as well

As with the flat bottom wide neck flasks, these round bottom versions have a wider neck than the standard flasks to allow easier accesss to the flask contents.

Which of the
following
accounts for
the smallest
portion of water
use in a
country?
A .Agriculture
B. Domestic
C. industry
D. Electrical production

Pls and thanks!!!

Answers

Answer:

Im pretty sure its, B. Domestic.

Explanation:

Complete 9 additional base pairs.Remember there is no thymine (T) in RNA the adenine (A) in the DNA needs to pair with uracil (U)

Answers

Answer:

AUG CAU GAC UAC GAU CAG UGA CGA AUC

UAC GUA CUG AUG CUA GUC ACU GCU UAG

Explanation:

Answer:

Instead of Left to Right, I'll be doing them in top to bottom,indicating that the 9th pair is on the bottom

Thymine = Adenine

Adenine = Uracil

Thymine = Adenine

Guanine = Cytosine

Cytosine = Guanine

Thymine = Adenine

Guanine = Cytosine

Cytosine = Guanine

Adenine = Uracil

Thymine = Adenine

During the technological design process a___
is
used to test ideas at a smaller scale.

Answers

Answer:

prototype

i don't really know the answer but i guess is A PROTOTYPE


A disadvantage of solar energy is
A. that the clouds can block the sunlight
B. it is not available at night
C. that the clouds can block the sunlight and it is not available at night
D. the sun is to hot the absorbed in solar panels

Answers

Answer:

the sun is hot the absorbed in solar panels

Explanation:

Answer:

The answer is D.

Explanation:

Solar power is pollution free and causes no greenhouse gases to be emitted after installation. Reduced dependence on foreign oil and fossil fuels. Renewable clean power that is available every day of the year, even cloudy days produce some power. Return on investment unlike paying for utility bills.

Evolution is a theory because


A. we are not sure if it is true

B.there's not enough evidence yet

C.scientific theories are supported by a large amount of evidence

D.none of these is true

Answers

C is the answer of question

Which expression is equivalent to sin Bcsc Bsec B for all values of B for which sin Bcsc Bsec B is defined?

Select the correct answer below:
cot Btan B
cot Bsec B
sec B​

Answers

Answer:  sec(B), third choice

Recall that csc, which stands for cosecant, is defined as follows

csc(x) = 1/( sin(x) )

it is the reciprocal of the sine function. Multiplying csc(B) and sin(B) together yields 1. This result multiplies with the only thing left, sec(B), to get the final answer.

In one to three sentences, describe what happens during the carbon fixation stage of the Calvin cycle

Answers

Answer:

Carbon dioxide (CO2) combines with a five-carbon compound

3-phosphoglycerate (PGA) is formed.

Explanation:

Answer:

Carbon dioxide (CO2) combines with a five-carbon compound

3-phosphoglycerate (PGA) is formed.

Explanation:

Which feature is created by deposition from rivers?

Answers

Plains,Alluvial soil, and deltas
Hope this helps you
Please mark this as BRAINLIEST

I’m kinda confused on this project, any examples? I don’t understand what I am doing at all.

Answers

Answer:

it is asking you to to 5 to 7 page essay and pretty much explain it in your own opinion an it is asking about scholarly resources but its saying your essay must be an APA formate and for you to at least name 3 scholarly resources but you can not use the wikipedia an the resources can not be over 5 years old so you need to find resourcers that are at least 5 or lower years old.

Explanation:

hope this helps you its the best way i can explain.

condensation and evaporation are examples of an interaction between:
A: none of these

B:Atmosphere and Lithosphere

C: hydrosphere and lithosphere

D: atmosphere and hydrosphere


This is urgent!!!!

Answers

Answer:

I would say D. atmosphere and hydrosphere

Explanation:

Because hydrosphere means water, and the atmosphere is where the water is evaporated to, and then condensed into rain.

During evaporation, liquid water converts to vapours into the atmosphere and during condensation, vapours are converted into liquid water. So, the correct option is D.

What are evaporation and condensation?

Evaporation is a process in which the surface of a liquid is converted to vapours. This process takes place at a temperature lower than the boiling point of the liquid.

Unlike boiling, evaporation is a surface process, which means only the top layer of the liquid is converted into vapours. While boiling is a bulk process.

This is an important process for the maintenance of the water cycle as most of the evaporation happens through oceans and rivers etc. This contributes to humidity in the atmosphere and ultimately results in rain.

Condensation is the opposite of evaporation in which the vapours turn back to liquid. This happens either because of a drop in temperature or increased vapour pressure.

In the water cycle when the vapour pressure of the atmosphere increases due to the high amount of water vapours, there is the formation of clouds which causes rainfall.

Hence, atmosphere and hydrosphere interactions make the process of condensation and evaporation possible.

Therefore correct option is D.

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Click on the link below to see the primate family tree diagram. Which of the
following statements is true?

Primate Family Tree Diagram

A. Orangutans evolved from lesser apes and Old World monkeys.
B. Gorillas evolved from orangutans.
C. Orangutans evolved from an ancestor they share with gorillas.
D. Gorillas are more closely related to lesser apes than to
chimpanzees.

Answers

Orangutans evolved from lesser apes and old world monkeys

Option A Orangutans evolved from lesser apes and Old World monkeys.

Are orangutans friendly?

Orangutans are generally non-aggressive toward humans and each other. Many individuals reintroduced into the wild after having been in managed care are aggressive towards humans. Male-male competition for mates and territory has been observed between adults.

Do orangutans ever eat meat?

Most of their diet consists of fruit and leaves gathered from rainforest trees. They also eat bark, insects, and, on rare occasions, meat.

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The Venn diagram below shows similarities and differences between binary fission and mitosis. What is wrong with the diagram?
A)Mitosis forms four identical daughter cells.
B)Mitosis does not form membrane-bound nuclel.
C)Binary fission is not used by eukaryotes.
D)Binary fission is not a simple process.

Answers

Answer:

C

Explanation:

Binary fission is not used by eukaryotes. It is used by prokaryotes.

In the Venn diagram, the thing which is wrong with the diagram is Binary fission is not used by the eukaryotes. Thus, the correct option is C.

What is Binary fission?

Binary fission is a type of asexual reproduction which involves the formation of new organisms which are similar to the parents. This process occurs by a separation of the body into two new bodies or organisms.

In the process of binary fission, an organism duplicates its genetic material that is deoxyribonucleic acid (DNA), and then divides into two parts through cytokinesis, with each new organism receiving one copy of the DNA. This process occurs in prokaryotes and eukaryotes.

Therefore, the correct option is C.

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Other Questions
Which sets are best represented by the Venn diagram G = {odd numbers)H = {even numbers)1 = {prime numbersB. G = {a,b,c}H = {d, e, f}1 = {a, d, g}C. G= {1, 2, 3H = {2, 4, 9}1 = {4, 5, 6)D. G={a, -13,7}H={-13, -15, s}1 = {s, a, 23} For the dilation, DO, K = (10, 0) (5, 0), the scale factor is equal to _____. 89 x (100-2) = 98 x (100-x) What should replace 'x' to make the equation true? The required return on the stock of Moe's Pizza is 10.8 percent and aftertax required return on the company's debt is 3.40 percent. The company's market value capital structure consists of 69 percent equity. The company is considering a new project that is less risky than current operations and it feels the risk adjustment factor is minus 1.9 percent. The tax rate is 39 percent. What is the required return for the new project? rev: 12_20_2018_QC_CS-152115 Multiple Choice 10.41% 6.19% 8.51% 9.99% 6.61% What is the message of this poster?A.)People should vote in electionsB.)People should be loyal to the stateC.)People should oppose the Nazis.D.)People should ignore propaganda.ANSWER IS: B In the story, Tulo tries to delay calling in about the gap in the wall. Drag to the correct box his stated reason and his real motivation for his action. MAN IF U ANSWER THIS QUESTION U ENDED 2020 Which of the following is equal to the square root of the cube root of 6? 6 to the power of one sixth 6 to the power of one third 6 to the power of two thirds 6 to the power of three halves A fox locates rodents under the snow by the slight sounds they make. The fox then leaps straight into the air and burrows its nose into the snow to catch its meal. If a fox jumps up to a height of 85 cm , calculate the speed at which the fox leaves the snow and the amount of time the fox is in the air. Ignore air resistance. 75 + 13 + ?? = 140 i dont know what it is. Mitch is buying candy bars for his friends he wants to give 2 bars to each friend and he wants to have 10 spare bars he can afford to buy 24 candy bars Simplify 8x + 10y + 9x - 3y by identifying and combining like terms. A. 17x + 13y B.24y C.17x+7 D.17x + 7y Use the given degree of confidence and sample data to construct a confidence interval for the population mean . Assume that the population has a normal distribution. Thirty randomly selected students took the calculus final. If the sample mean was 95 and the standard deviation was 6.6, construct a 99% confidence interval for the mean score of all students.A. 91.68B. 92.03 < < 97.97 C. 92.95D. 91.69 < < 98.31 HELP ASAP! What accident endangers the Nautilus and all on board? A) An iceberg falls over on the ship. B) The ship runs out of fuel. y = 4x 6can someone find me the slope for this thanks What does an individuals effective tax rate indicate?A. the average income earnedB. the average tax rateC. the minimum tax rateD. the next years tax rate How did the French and Indian War lead to tensions between England and itscolonies?A. England refused to protect the colonists in future wars.B. The colonists began charging England higher prices for warmaterials,C. The colonists refused to buy manufactured goods from England.D. England began taxing the colonists to pay for the cost of the war. VERY EASY QUESTION. WILL MARK BRAINLIEST What is the name of the process by which decomposers convert organic nitrogen to ammonia? Ammonification Denitrification Fixation Nitrification what is the numerical value in meters per second squared of the acceleration of an object experiencing true free fall A quadratic of the form -2x^2 + bx + c has roots of x = 3 + sqrt5 and x = 3 - sqrt5. The graph of y = -2x^2 + bx + c is a parabola. Find the vertex of this parabola. So, is protected by copyright law.