Can someone help me with this? This is science! Also giving brainliest if correct :)

Can Someone Help Me With This? This Is Science! Also Giving Brainliest If Correct :)

Answers

Answer 1

I think it’s the sieve tube element.


Related Questions

Eric bought a canoe for $333. 75. The sales tax was 5. 25%. What was his total cost? round to the nearest hundredth.

Answers

Answer:

63.57

Explanation:

333.75/5.25= 63.571428

Rounded from the nearest hundredth.

Since, the Number in front of the 7 was lower than 5 the 7 remained the same.

Where is the incorrect pronoun shift. Rewrite the sentence correctly.

The band played its fine concert last night.

Answers

The sentence is grammatically correct and there is no incorrect pronoun shift.

What is a pronoun?

A pronoun is a word used to replace a noun or noun phrase in a sentence. It is used to avoid repetition of the same noun or noun phrase in a sentence, making the sentence more concise and readable.

Examples of pronouns include he, she, it, they, we, me, him, her, them, us, and so on. Pronouns can be categorized as personal pronouns, possessive pronouns, reflexive pronouns, demonstrative pronouns, indefinite pronouns, relative pronouns, and interrogative pronouns.


Pronouns are important because they improve the clarity and flow of a sentence by replacing repetitive nouns or noun phrases.

The pronoun in the above is it's.

Learn more about pronouns:
https://brainly.com/question/30510319
#SPJ1

King Midas wanted to be the richest king in the world, and one day, he had the chance to make it happen. His servants had captured a satyr, a half-man and half-goat creature. The satyr happened to be good friends with a very powerful god named Dionysus. (2) Midas thought that Dionysus just might give him a reward for finding the satyr, so he asked the satyr to stay at the palace where he would be treated as a guest. The satyr was given a nice room with fine linens and any food he desired. The satyr was quite happy about all this. (3) Soon, Dionysus arrived at the palace, as he had been searching for the satyr. Midas took Dionysus to see the satyr, who told the god about all the rich foods and fine things the king had given him. Dionysus was grateful to Midas for treating his friend so well, and he offered to grant Midas one wish. (4) "I wish that everything I touch would turn to gold!" Midas exclaimed without thinking. He couldn't believe his luck! Now he would definitely become the world's richest king. Dionysus asked if he was sure, and because Midas said he was sure, Dionysus granted the wish. (5) For the next few hours, Midas was in heaven. He touched flowers, and they became gold. He touched his bed, and it became gold. He touched his castle, and it became gold. Then, because he was thirsty, Midas tried to drink some water, but it dried as it touched his lips and also became gold. He tried to eat an orange, but it too turned into the precious metal. Finally, his daughter ran to give him a hug, and she too became gold! Midas realized that his wish had become a curse. (6) Midas begged Dionysus to take back his wish. Dionysus saw how sorry Midas was and took pity on him. He sent Midas to bathe in the River Pactolus. The waters cleansed him and released him from the golden touch. Midas realized then that riches are not the most important things in the world. 4 The sixth paragraph is mostly about A. Midas begging Dionysus to help him. B. Dionysus seeing how sorry Midas is. C. Dionysus releasing Midas from his wish. D. Midas traveling to the river Pactolus.

Answers

Answer:the answer is D

Explanation:

Tomas wrote the equation y = 3x +y equals 3 x plus startfraction 3 over 4 endfraction.. when sandra wrote her equation, they discovered that her equation had all the same solutions as tomas’s equation. which equation could be sandra’s?

Answers

The equation which could be Sandra’s equation from the given options is y = 3/4 + 3x

How to write and solve equation?

Tomas equation;

y = 3x + 3/4

check all that applies:

y = 6x + 3/2

not the same

y = -6x + 3/2

not the same

-6x + 2y = 3/2

2y = 3/2 + 6x

y = (3/2+6x) / 2

y = 3/4 + 3x

Equal

The complete question:

Tomas wrote the equation y = 3x +3/4. When Sandra wrote her equation, they discovered that her equation had all the same solutions as Tomas’s equation. Which equation could be Sandra’s?

–6x + y = 3/2

6x + y = 3/2

–6x + 2y = 3/2

6x + 2y = 3/2

Learn more about equation:

https://brainly.com/question/2972832


Robert, John, Enrique, Mark, and Thomas participate in a 2-mile run during gym class. The total average of all 5 runners is
15.3 minutes, and the average of Robert, John, and Enrique is 14.4 minutes. What is the average time for Mark and Thomas?

Answers

Answer:

Explanation:

Robert + John + Enrique + Mark + Thomas = 15.3 ------(1)

Robert + John + Enrique = 14.4 -------(2)

Putting value in Equation 1:

14.4 + Mark + Thomas  = 15.3

Hence:

Mark + Thomas = 0.9

The object will have a minimum gravitational potential energy at point

Answers

The Height is minimum
Hope this helps
Good luck

Of the 310 students who watched a soccer match at college, 20 more students walked to the field than rode bicycles. If all students either walked or rode bicycles to the field, how many students walked?

Answers

Answer:

20

Explanation:

The lifetime of a particular type of car tire is normally distributed. The mean lifetime is 50,000 miles, with a standard deviation of 5,000 miles. Of a random sample of 15,000 tires, how many of the tires are expected to last for between 45,000 and 55,000 miles?

Answers

Answer:

10,240 tires

Explanation:

To calculate the percentage of tires that are expected to last for between 45,000 and 55,000 miles, we need to find P(45000 < X < 55000).

Calculator input for "normal cumulative distribution function (cdf)":

Lower bound: x = 45000Upper bound: x = 55000Mean, μ = 50000Standard deviation, σ = 5000

⇒ P = 0.682689492...

⇒ P = 68.27%

Therefore, approximately 68.27% (2 d.p.) of tires are expected to last for between 45,000 and 55,000 miles.

To find the number of tires that are expected to last between 45,000 and 55,000 miles from a random sample of 15,000, multiply the found percentage by the number in the sample:

⇒ 0.682689492... × 15000 = 10240.3428...

Therefore, of a random sample of 15,000 tires, 10,240 tires are expected to last for between 45,000 and 55,000 miles.

Learn more about normal distribution here:

https://brainly.com/question/30014449

Question 4

A quality engineer is curious about the thickness of the paint on the Model A cars produced by her company. Explain how she can obtain a reliable measure of the thickness of the paint, stating clearly the characteristics of the variable she should use

Answers

To obtain a reliable measure of paint thickness, the quality engineer can use a non-destructive testing method like ultrasonic coating thickness measurement, ensuring accuracy and preserving the car's integrity.

What is reliable measure in engineering?

The capacity of a system or component to work under defined conditions for a certain amount of time is referred to as reliability.

Reliability is closely connected to availability, which is often defined as a component's or system's capacity to work at a specific time or interval of time.

Reliability engineering is the application of scientific knowledge to a component, product, facility, or process to guarantee that it performs its intended function without failure for the requisite time period in a specific environment.

Learn more about reliability engineering  at:

https://brainly.com/question/32323968

#SPJ1

Is anlyzing and interpreting information a record?​

Answers

yes,

Explanation:

You are interpreting the said record whether no or yes,it is correct .You are analyzing the already written information ,not to get wrong

Which will have cells? (Select all that apply.)
Animals monkeys plants or food

Answers

\( \boxed{ \frak{Answer}}\)

As we that all living organisms have cells. Whether it is a plant or an animal. Cell is a fundamental unit of life. For an organism to live cell is mandatory.

And food is non living.

So,

Monkeys Plants

Will have cells

\( \boxed{ \frak{Be \: Brainly}}\)

Answer: animals monkey

Explanation:

A grocery store has two recycling machines
outside. The first recycling machine took in 240
plastic bottles and 180 metal cans. The second
took in 30 percent more plastic bottles but 10
percent less metal cans. The second machine
recycled what percent more items than the first
(rounded to the nearest percent)?

Answers

Answer is 112%

kinda skeptical about my answer but i am going to give it my best shot, sorry if i get it wrong.

In percent-type questions I always go by this formula:

not a %                            %

original number       :     100%

new number            :      new %

original number × new %  =  new number × 100%

here, the original numbers are 240 and 180 and the new % is +30% and -10% now let plastic be P and metal be M and let's elaborate this a bit further

plastic:

the first recycling machine took in 240  plastic bottles while the second took in 30% more plastic bottles, what we have to do here is to find out how much bottles the second machine took in as a form of integer, which is the new number; let that new number be X, let's plug this in the formula

\(240:100+30\\X:130 \\\)

notice: 130 is the new %

\(240*130 = 100X\\31200 = 100X\\312=X\)

the second machine took in 312 plastic bottles, let's save this answer for later

metal:

the first recycling machine took in 180 metal cans while the second took in 10% less plastic bottles, we do the same thing and find the new number, this time let it be Y:

\(180:100-10\\Y=90\)

90 is the new % here; also, notice how sometimes you either add or subtract percents, depending on what the problem demands.

\(180*90=100Y\\16200=100Y\\162=Y\)

Now we can conclude that the first recycling machine took in 240  plastic bottles and 180 metal cans and the second took in 312 plastic bottles and 162 metal cans.

here comes the hardest bit to apprehend and the final part of this problem, "the second machine recycled what percent (%) more items than the first?"

in other words, how much percent did the second machine recycle more.

to find that percent, first we need to add the plastic and metal "items" of both machines individually and turn them into percents: let the first machine be A and second machine be B:

A: 240+180=420

B: 312+162=474

again, using the same formula to find the new percent, let that percent be Z; plugging both A and B respectively:

\(420:100\\474:Z\)

\(420Z=474*100\\420Z=47400\\Z= 112.857\)≈ 112% more items than the first

now if you check the rounded up 112 and plug it back in to make sure of your answer: \(420Z=47400\) you end up getting 47040, since it's rounded up, but when you plug the full 112.857 you get 47399.94, closest to 47400. Tip: when you plug in any value for check up, don't use the rounded up one.

At last, those steps are actually fast, especially with that formula it's so important. the explanation seems intimidating so read it slowly and take your time. if you have any other questions, feel free to ask. also, let me know if you know a faster method to solve this question. <3

The perimeter of the figure below is 133.1 ft.
Find the length of the missing side.

The perimeter of the figure below is 133.1 ft. Find the length of the missing side.

Answers

Answer:

9.6

Explanation:

because if we did if we subtract the total number which is which we are giving 133.1 minus the total number is that the Debt term give us by him by the drawing it will give us 9.6 feet

9.6 ft because if you add all the sides then subtract by the actual perimeter then you get x= 9.6 ft

Explain (or list) at least five reasons why you will benefit from going to college or trade school.

Answers

Answer:

1. Improved job prospects:

By completing a degree or trade program, you can have access to more job opportunities and higher-paying jobs.

2. Enhanced skills and knowledge: College and trade school education can equip you with the skills and knowledge needed to excel in your chosen field.

3. Networking opportunities: Attending college or trade school can help you build professional networks that can be useful for career advancement.

4. Personal growth: College or trade school can help you develop independence, critical thinking, and other essential skills that can benefit you throughout your life.

5. Greater earning potential: Completing a college degree or trade program can lead to higher earnings and a better quality of life in the long run.

professor believes the students in a statistics class this term are more creative than most other students attending the university. A previous study found that students at the university had a mean score of 35 on a standard creativity test, and the current class has an average score of 40 on this scale with an estimated population standard deviation of 7. The standard deviation of the distribution of means is 1.63. The effect size if

Answers

Is there more to this orrrr lol

9. Etutodsrcin a sudden or great misfortune or failure.

Answers

Answer:

An object, person or endeavor in a state of failure A serious, unexpected, and often dangerous situation requiring immediate action A person harmed or killed as a result of an unfortunate event or action

Explanation:

Match each factor of the biopsychosocial model with its emphasis on the etiology of mental disorders.
1. Psychological
2. Sociocultural
3. Biological

Answers

The following factors are matched with the respective biopsychosocial models with an emphasis on the etiology of mental disorders:

Psychological - Thoughts, emotions, personality, and learned knowledgeSociocultural -  Family connections, socioeconomic class, and cultural context;Biological - Genetics, brain function, and neurotransmitter imbalances.What are biopsychosocial models?

Biopsychosocial models are a type of trans-disciplinary model that investigates the relationship across biology, psychology, and socio-environmental variables. These models particularly investigate how these factors influence themes ranging from health and illness to human development.

The biopsychosocial model assists primary care physicians in better understanding the interplay between biological and psychological components of diseases in order to strengthen the dyadic relationship between clinicians and their patients as well as interdisciplinary approaches to patient treatment.

It is to be noted that Dr. George Engel, a cardiologist, devised the biopsychosocial paradigm, which is now generally recognized by the mental health professions. According to this paradigm, biological, psychological, and social elements are all interconnected and significant in promoting or causing disease.

Learn more about mental disorders:
https://brainly.com/question/939408
#SPJ1

C=5/9 (F−32)

The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must be true?

A temperature increase of 1 degree Fahrenheit is equivalent to a temperature increase of
5
9
degree Celsius.
A temperature increase of 1 degree Celsius is equivalent to a temperature increase of 1.8 degrees Fahrenheit.
A temperature increase of
5
9
degree Fahrenheit is equivalent to a temperature increase of 1 degree Celsius.
A) I only
B) II only
C) III only
D) I and II only

C=5/9 (F32)The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature
C=5/9 (F32)The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature
C=5/9 (F32)The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature
C=5/9 (F32)The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature
C=5/9 (F32)The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature

Answers

Answer:

the answer is d

Explanation:

Answer:

I think is c

Explanation:

hope this helps

i need this can you help if dont know dont answer. pls help me i am giving 100 points and brainlest

i need this can you help if dont know dont answer. pls help me i am giving 100 points and brainlest

Answers

Answer:

It shows tendency, China's wars were a threat to the country's northern frontier.

I'm not sure about my answer but you can keep building on from this.

chinas nation were a threat

Is someone know the answr?
Thank you

Is someone know the answr?Thank you

Answers

FAFSA is free and the first day you can apply is october 1st

why are so many big cities located along the bank of a river

Answers

Answer: Rivers provide great and easy shipping routes and transportation of both goods and passengers.

Explanation:

Answer:I hope this help you out

Explanation:

One reason that many big cities are located along the bank of a river is because rivers have historically provided transportation as well as a source of water for drinking, agriculture, and industry. Additionally, rivers can be used for fishing, which has been an important food source for cities throughout history. Another reason is that the flat land around a river is often more accessible and easier to build on than hilly or mountainous terrain. Finally, rivers have traditionally been used for disposing of waste and sewage, which can be carried away downstream rather than accumulating in the city.

explain the meaning of scouting

Answers

Answer:

1) the action of gathering information about enemy forces or an area.

2) the action of one that scouts

Explanation:

please mark me as brainly

Answer:

to explore an area to obtain information (as about an enemy) : to make a search. : to work as a talent scout. transitive verb. : to observe in order to obtain information or evaluate.

In ΔHIJ, i = 400 inches,

m∠I=155° and

m∠J=7°. Find the length of h, to the nearest 10th of an inch.

Answers

The length of h in ΔHIJ with i = 400 inches, m∠I=155°, and m∠J=7° is approximately 32.3 inches to the nearest 10th of an inch, using the Law of Sines.


What is law of sines?
The Law of Sines, also known as the Sine Rule, is a trigonometric formula used to solve triangles. It states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all three sides of the triangle. Mathematically, the Law of Sines can be expressed as:

a/sin(A) = b/sin(B) = c/sin(C)

where a, b, and c are the side lengths of the triangle, and A, B, and C are the opposite angle measurements.

The Law of Sines can be used to solve for the unknown side lengths or angle measurements of a triangle if you have at least one known side length and its opposite angle measurement, or if you have at least two known side lengths and one of their opposite angle measurements.


Given that i = 400 inches, m∠I=155°, and m∠J=7°, we can use the Law of Sines to solve for the length of h. The Law of Sines states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is the same for all three sides of the triangle.

Using this, we have:

sin(155°) / i = sin(7°) / h

Solving for h, we get:

h = i * sin(7°) / sin(155°)

Plugging in the values, we get:

h = 400 * sin(7°) / sin(155°) ≈ 32.3 inches

Therefore, the length of h is approximately 32.3 inches to the nearest 10th of an inch.

To know more about triangles visit:
https://brainly.com/question/2773823
#SPJ1

Simulate an environment with equal amounts of insects and seeds, but no fruit. Which flock will be able to eat the most? The least? Why?

Answers

In an environment with equal amounts of insects and seeds, but no fruit, the flock that will be able to eat the most will be the one that has a diet consisting mainly of insects and seeds.

The advantage of the abundance

This is because they will be able to take advantage of the abundance of these two types of food sources and consume them at a higher rate than flocks that have a diet consisting mainly of fruit.

On the other hand, the flock that will be able to eat the least will be the one that has a diet consisting mainly of fruit. This is because there are no fruit available in this environment, and they will have to rely on the limited amount of insects and seeds available to them. This will result in them consuming less food overall and potentially struggling to find enough food to sustain themselves.

Overall, the ability of a flock to consume the most food in this environment will depend on their dietary preferences and the availability of different types of food sources. Flocks that have a diet consisting mainly of insects and seeds will be able to consume the most food, while flocks that have a diet consisting mainly of fruit will be able to consume the least.

Learn more about insect ecosystems:

brainly.com/question/6705210

#SPJ11

Answer:

Flock Y will eat the most and Flock X will eat the least.

Explanation:

discuss the strategy of using the part of speech of a word to determine it's meaning​

Answers

Answer:

School Sucks

Explanation:

Half of this stuff you will never use in your whole life, but you are still required to do it.

"Believing in Angels in the 21st Century is foolish" (12 marks)
Evaluate this statement considering arguments for and against
In your response you should:
Refer to Muslim teachings
Refer to different Muslim points of view
Reach a justified conclusion​

Answers

Nolur acil lütfen yalvarırım yalvarırım sana

The web development team is having difficulty connecting by ssh

Answers

In the above scenario, where the web development team is having issues with their connection, the port number that would need to be opened on the webserver to allow SSH connections is Port 22.

What is the rationale for the above response?  

SSH (Secure Shell) is a network protocol that enables secure communication between two computers, and it uses Port 22 as the default port for establishing the connection.

Opening this port on the firewall will allow the web development team to connect to the local web server via SSH.

The rationale for opening Port 22 on the firewall to allow SSH connections is that SSH uses this port as the default for establishing secure communication between two computers.

Learn more about  web development at:

https://brainly.com/question/29358386

#SPJ1

Full Question:

The web development team is having difficulty connecting by SSH to your local web server and you notice the proper rule is missing from the firewall What port number would you open on your webserver? Port 21 Port 22 Port 25 Port 80 Port 443

Bernie Madoff, recently sentenced to 150 years in prison for creating a Ponzi scheme which caused clients to lose millions of dollars, engaged in which form of crime?
- Street crime
- Corporate crime
- Violent crime
- Institutional crime

Answers

Most non-violent crimes involve some form of larceny or stealing. On the other hand, violent crimes are regarded as crimes against people. This indicates that a crime was committed in which the physical body of another person was hurt. Thus, option C is correct.

What Violent crime caused clients to lose millions of dollars?

Sanctions may be either favourable (rewards) or unfavourable (punishment). Control may be explicit or informal, and sanctions may result. A wayward person can be brought back into line with social norms using informal punishments like scorn or exclusion.

Therefore, Informal punishments can take the form of embarrassment, mockery, sarcasm, criticism, and disapproval.

Learn more about Violent crime here:

https://brainly.com/question/8925068

#SPJ1

In parallel circuits, ______ follow down ______ paths.

protons, single (A)

electrons, single (B)

electrons, multiple (C)

protons, multiple (D)

Answers

B I’m pretty much sure

In parallel circuits, electrons follow down multiple paths: C. electrons, multiple.

An electric circuit can be defined as an interconnection of electrical components which creates a path for the flow of electric current (electrons) due to a driving voltage.

Basically, the components of an electric circuit can be connected or arranged in two forms and these are;

Series circuitParallel circuit

A parallel circuit refers to an electrical circuit that has the same potential difference (voltage) across its terminals. Thus, its components are connected within the same common points, so that only a portion of current (electrons) flows through each branch and in multiple paths.

Consequently, current (electrons) can flow in multiple paths due to the presence of a branch in the parallel circuit and as such, one branch is independent of the other.

In conclusion, electrons follow down multiple paths in a parallel circuit.

Read more: https://brainly.com/question/23088951

which key is very important to ensure that a command in Autocad is carried out.​

Answers

The key that is very important to ensure that a command in Autocad is carried out is control key.

How is the control key important?

The control key serves as an  essential to many common shortcuts.

It is necessary key that ensure that a command in Autocad is carried out and it can modify the other key's function.

Learn more about control key, at;

https://brainly.com/question/14447287

Other Questions
What is a major difference between parallel lines and perpendicular lines? [tex]7 - 3x = 4[/tex]Solve the following equations by systematic method Determine whether the following statement is true or false. Justify your answer.If O is an angle in any triangle, then tan 0 is the length of the side opposite O divided by the length of theside adjacent to 0.Choose the correct answer below.OA. The statement is false. tan 0 is always equal to the length of the side opposite o divided by thelength of the length of the hypotenuse.OB. The statement is false. This is true only if O is an acute angle in a right triangle.O C. The statement is false. This is true only if O is an obtuse angle in a right triangle.OD. The statement is true, tan 0 is always equal to the length of the side opposite o divided by thelength of the side adjacent to 0. EF is the median of trapezoid ABCD. If AB=5x-9, DC=x+3 and EF=2x+2, what is the value of x? Between which two whole numbers is the square root of 18? Where does a case go if the defendants want to challenge a decision made in a federal district court? A.) civil courtB.) criminal courtC.) Supreme Court D.) court of appeals inclusion and diversity within work organizations is a _____________ frame level. Suppose you tested two age groups on the number of details they could recall from a paragraph. The mean for the older group is 16, and the mean for the younger group is 14. Further suppose that you fail to reject the null hypothesis for this independent samples t-test. Required:What best accounts for the difference between these sample means? Neil swam 4 2/3 lengths of the pool. Mia swam 6 1/2 lengths of the pool. How many more lengths did Mia swim than Neil Question 3 5 pts For this problem, type your answers directly into the provided text box. You may use the equation editor if you wish, but it is not required. Consider the following series. ne-n Par Which of the following is a characteristic of populism that has been important to Texas's cultural and political history?Multiple Choice1.) an anti-immigrant tendency2.) opposition to federal help to small businesses 3.) encouragement of free-market principles and opposition to state aid to business4.)broad popularity across urban and rural populations Given the following information, formulate an inventory management system. The item is demanded 50 weeks a year. PARAMETER VALUE Item cost $8.00 Order cost $178.00 /order Annual holding cost 29 % of item cost Annual demand 28,100 units Average weekly demand 562 /week Standard deviation of weekly demand 25 units Lead time 4 week Service probability 98 % a. Determine the order quantity and reorder point. (Use Excels NORMSINV( ) function to find your z-value and then round that z-value to 2 decimal places. Do not round any other intermediate calculations. Round your final answers to the nearest whole number.) Optimal order quantity Answer 2057 units Reorder point Answer 576 units b. Determine the annual holding and order costs. (Do not round any intermediate calculations. Round your final answers to 2 decimal places.) Holding cost($)Answer 2386.12 Ordering cost($)Answer 2431.60 c. Assume a price break of $50 per order was offered for purchase quantities of 2,100 units per order. If you took advantage of this price break, how much would you save annually? (Do not round any intermediate calculations (including number of setups per year). Round your final answer to 2 decimal places.) 2. Consider the system defined by the impulse response h(n)=28(n+3)+28(n)+28(n-3). a) b) c) d) z Represent h(n). (1 v.) Characterize the system in terms of causality and stability. Justify. (1 v.) Determine the frequency response of the system H(ew). (1 v.) Represent module and phase of the system. (1 v.) are 7 yellow, 6 blue, 2 red and 3 green ribbons in a drawer. Once a non selected not toplowing probability:n and then a red ribbon)7 What are the 5 goals of economics? Give two factors that lead to the price of energy from new technologies to increase, and two factors that lead to the price to decrease. Provide an example in each case. [10] Helppp me with this math problem HELP LAST ATTEMPT !! 102=69-7x+3x solve and check Fill in the blanks: When your cause-effect ________ can be used to evaluate a __________ about a phenomenon, scientists call it a ___________.