PLEASE HELP 20 PTS

A group of middle school students were given a short course in speed-reading. The instructor was curious if a monetary incentive would influence performance on a reading test taken at the end of the course. Half the students were offered $5 for obtaining a certain level of performance on the test, the other half were not offered money.
What is the Control group?
What is the Independent Variable?
What is the Dependent Variable?

Answers

Answer 1
the control group is..$0 group(no monetary initiative)
the independent variable is the monetary incentive ($5 or no money)
the dependent variable is the performance on the reading test 
Answer 2
The control group is the students sans the money. The independent variable would be the 5$. The dependent variable is students receiving the money.

Related Questions

A bone that contains a diaphysis and epiphyses, a tuberosity near its proximal end, and proportionally more compact than spongy bone is the ________. radius first rib talus clavicle fibula

Answers

The bone being referred to in the question, which contains a diaphysis and epiphyses, a tuberosity at the proximal end, and is mainly composed of compact bone, is the radius. The correct answer is radius.

The bone described in the question, a bone that contains a diaphysis and epiphyses, a tuberosity near its proximal end, and is proportionally more compact than spongy bone, is most likely the radius.

The radius is a bone in the forearm that has these characteristics. The diaphysis is the shaft or main part of the bone, while the epiphyses are the end parts.

Proximally, the radius often has a rounded region known as a tuberosity. The radius also tends to have a greater proportion of compact bone than spongy bone.

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Final answer:

The bone mentioned, characterized by having a diaphysis, epiphyses, a proximal tuberosity, and a composition mainly of compact bone, is the long bone known as the radius.

Explanation:

A bone that features distinct structural components such as a diaphysis, epiphyses, a tuberosity, and a composition predominantly of compact bone corresponds to a long bone in the human body. The diaphysis is the long tubular shaft situated between the proximal and distal ends of the bone, while the epiphyses, which are the rounded ends, are found at each end of the bone and typically filled with spongy bone and red marrow. In this case, where a tuberosity is near the proximal end, and there is a larger proportion of compact bone relative to spongy bone, the correct answer identifying the bone described is the radius.

The radius is one of the long bones in the human arm, partnered with the ulna, and is essential for the forearm's range of movement. The structural hallmark of the radius that sets it apart from other bone options listed - such as the first rib, talus, clavicle, or fibula - is its significant amount of compact bone and the presence of a tuberosity near the proximal end, which aligns with the characteristics mentioned in the question.

Cigarette smoke can affect cell differentiation during embryo development. Which would be the most likely effect of cigarette smoke?

Answers

That it can cause lung cancer and that you could die from it

it can cause childhood asthma....

What is the complementary dna base sequence to the dna strand tgccat?

Answers

it has nine lives right?

pioneer plant species can be described as those that

Answers

are small in size , and have highly effective means and dispersing their seeds.

Answer:

Pioneer plant A plant that occurs early in a vegetational succession. Pioneer species possess characters that suit them to their ecological niches, notably rapid growth, the production of copious, small, easily dispersed seed, and the ability to germinate and establish themselves on open sites.

Explanation:

A client with cancer is diagnosed with typhitis. which emergency intervention would the nurse perform?

Answers

Final answer:

In an emergency situation involving a cancer patient diagnosed with typhitis, a nurse would provide fluid resuscitation, stability monitoring, administration of intravenous antibiotics, and potentially prepare the patient for surgery if complications like bowel perforation are suspected.

Explanation:

The question is focused on a cancer patient who is diagnosed with typhitis, a serious infection of the cecum which can lead to potentially life-threatening complications like bowel perforation. In an emergency situation, initial interventions would typically focus on stabilizing the patient, which may include fluid resuscitation and monitoring of vital signs to counteract potential sepsis. Interventions would also likely include immediate administration of broad-spectrum intravenous antibiotics to target the infection, as well as the use of imaging studies, such as a CT scan to confirm the diagnosis and assess for complications. If the patient is hemodynamically unstable or if there is evidence of complications like bowel perforation, the patient may require emergency surgery. It's critical to initiate treatment promptly due to the risk of rapid deterioration.

Our customers dogs have many different dietary needs, such as low-protein foods for kidney disease, and some of our customers simply prefer special diets like all-meat foods. therefore, we order food from a lot of vendors. how can we make sure we always have enough of the right food on hand and get the best prices?

Answers

In order to be sure you are always have enough of the right food in hand and get the best prices, in a situation in which customer dogs have many different dietary needs, and a lot of vendors on the other hand, you should use a supply chain management system (SCM) to track vendor information, food usage trends, and food expiration. With SCM you will manage the flow of goods.

A client being evaluated in the emergency room is unable to speak logically or follow directions. the client’s family states the client has been under a great deal of stress for about 6 months. the client is most likely experiencing:

Answers

A client who is unable to speak logically or follow directions, with the added information from his family that the client has been under a great deal of stress for about 6 months, then more than likely the client is experiencing exhaustion. Exhaustion is a state of extreme physical or mental fatigue.

Which bone is most commonly used to determine the height of the deceased?

Answers

The bone that's most commonly used to determine the height of the deceased is the femur (although the humerus can also be used). The femur is measured in cm and the calculations may very according to the gender of the deceased and can be accurate within 5 cm.
The femur is a long bone that is hard and, therefore, can keep its integrity longer. As well as it is a bone that generally is proportional to the body.

List and define major chemical bonds used to connect biological molecules

Answers

Ionic boning involves a transfer of an electron, so one atom gains an electron while one atom loses an electron. One of the resulting ions carries a negative charge (anion), and the other ion carries a positive charge (cation). Because opposite charges attract, the atoms bond together to form a molecule.
The most common bond in organic molecules, a covalent bond involves the sharing of electrons between two atoms. The pair of shared electrons forms a new orbit that extends around the nuclei of both atoms, producing a molecule. There are two secondary types of covalent bonds that are relevant to biology — polar bonds and hydrogen bonds.
Two atoms connected by a covalent bond may exert different attractions for the electrons in the bond, producing an unevenly distributed charge. The result is known as a polar bond, an intermediate case between ionic and covalent bonding, with one end of the molecule slightly negatively charged and the other end slightly positively charged.
Because they’re polarized, two adjacent H2O (water) molecules can form a linkage known as a hydrogen bond, where the (electronegative) hydrogen atom of one H2O molecule is electrostatically attracted to the (electropositive) oxygen atom of an adjacent water molecule.

2. Heavy metals that pose health hazards to people and ecosystems occur __________. a. as a by-product of agriculture b. over extended periods of time c. very quickly with tragic results d. all of the above

Answers

The appropriate answer is doing. All of the above. Heavy metals are sometimes used in agricultural chemicals and can contaminate both terrestrial and aquatic ecosystems. Heavy metal concentrations can build up overtime as industrialization progressed. Chemical spills can introduce heavy metals to ecosystems quickly with devastating effects.

Answer:

Many of these substances, when eaten, cause serious health problems over time.

Explanation:

yep

What are the building blocks of minerals?

a. rocks
b. elements
c. isotopes
d. electrons

Answers

the answer should be B

What two components are often found as part of an enzyme?

Answers

Simple Enzymes: Usually composed of proteins. It is peptide bonds that linked the amino acids

Conjugated Enzymes: have two parts. The protein and non protein portion.

protein and non-protein, also called a cofactor

Suppose that a patient is diagnosed with new disease caused by build up by the waste material in the body's cells which organelle is most likely malfunctioning in patients cells

Answers

The answer to this question would be lysosome.

Build up of waste material mostly caused by disease in the enzyme that digests the material. Lysosome would be the organ that will hold the material until it was digested. Since it won't digest, the material will be in lysosome forever. The disease itself called lysosomal storage disorder, which was part of the inborn error of metabolism.

State one possible reason why a gene for the production of a human hormones would be placed in bacterial DNA

Answers

You can introduce the gene into bacteria in order to allow the bacteria to produce more of the hormone.

A gene for human hormone production might be inserted into bacterial DNA to facilitate the large-scale, industrial manufacture of hormones such as insulin and human growth hormone using recombinant DNA technology, avoiding allergic reactions from animal-sourced hormones.

One possible reason why a gene for the production of a human hormone would be placed in bacterial DNA is to manufacture the hormone on an industrial scale using recombinant DNA technology. This process has been used successfully as early as 1978 to produce human insulin, which is critical for treating diabetic patients. Using Escherichia coli (E. coli) bacteria as hosts, the human hormone genes, such as the one for insulin or human growth hormone (HGH), are inserted into the bacterial DNA, enabling bacteria to produce these hormones. This method eliminates allergic reactions that some patients experience when treated with hormones obtained from animals, such as pig insulin, and it allows for the mass production of hormones that are identical to those naturally produced by the human body.

As a plant grows, the stem often becomes thickened and somewhat woody since it is responsible for supporting the upper branches and leaves. Cells in this area of the plant develop

Answers

Cells in this area of the plant develop THICKENED CELL WALLS.
Cell wall is a very important cell organelle in plant, it gives rigidity to the plants' cells thus supporting them, it also perform a host of other activities. Thickened cell wall are usually rich in lignin. Thickened cell wall in plants are also called secondary cell wall.

thickened cell walls

Cells in the stem, needed for support, develop thickened cell walls. These specialized cells are called collenchyma cells.

Why did early naturalists think that sponges were plants and not animals?

Answers

Early naturalists regarded sponges as plants due to their lack of obvious movement as well as there distinctive branching form. Sponges do not have any organs and their skeleton is fibrous. It wasn't until 1755 and later confirmed by observation in 1765, that changes in the diameter the openings to their central cavity were described, thus proving the animal nature of sponges.

Pls Help Me


Plants do not adapt to their environment because they do not compete for resources. Please select the best answer from the choices provided T F

Answers

thats false because a plant can adapt too lack of water or temperature

The statement "Plants do not adapt to their environment because they do not compete for resources" is absolutely false.

What is an Environment?

An environment may be defined as anything which is present in the surroundings of a living organism. The term environment was given by Carlyle.

Plants generally adapt to the environment in the worst situation as well. If there is less water available, they adapt accordingly by closing their stomata in order to prevent water loss.

If there is more temperature outside, they generally thicken their stem region in order to withstand in high temperatures as well. Plants can alter the rate of photosynthesis according to their needs.

Therefore, the statement "Plants do not adapt to their environment because they do not compete for resources" is absolutely false.

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Which of the following is the best example of a positive correlation

Answers

Your chances of getting an A increase as the difficulty of the test decreases. Hence the correct option is b.

A positive correlation implies that as one variable increases, the other variable also increases. In the provided example, the statement "Your chances of getting an A increase as the difficulty of the test decreases" exemplifies a positive correlation. This suggests that when the difficulty level of a test decreases, the likelihood of achieving an A grade increases.

As the complexity of the test diminishes, students are more likely to perform well, leading to higher grades. This positive relationship between the ease of the test and the likelihood of obtaining an A aligns with the concept of a positive correlation, where the variables move in the same direction, reinforcing the idea that easier tests are associated with higher grades. Hence the correct option is b.

Complete question:

Which of the following is the best example of a positive correlation? Multiple Choice

The less interesting the lecture, the less likely you are to remember everything the instructor said. Your chances of getting an A increase as the difficulty of the test decreases. Alicia loves to eat ice cream on hot afternoons. You should study longer because that helps you get a better grade.

Communication between members of the same species is referred to as _______ communication.
A. interspecific
C. innate
B. intraspecific
D. intention

Answers

The answer is c infraspecific
I agree with the person above - the correct answer is B. intraspecific.
The word intra means 'within one,' so obviously you would pick this option to refer to communication between members within one single species.
Interspecific means among members of different species, and innate and intention communication are not applicable here.

Describe an experiment to investigate the effect of training on subjects ability to run faster without respire get anaerobically

Answers

A runner HAS to use the anaerobic respiration process,first we need to know the difference between anaerobic respiration and aeorobic respiration 

Anaerobic respiration is done by burning glucose directly without the presence of oxygen giving out lactic acid and energy 
Aerobic respiration is done by burning glucose and oxygen giving out water + engergy + Co2 

1.) Take a stop-watch 
2.) Take TWO or more runners 
3.) Unlike Olympic race match ask ONE of the runners to run their fastes and the others to GRADUALLY speed up 
4.) make the runners breath hard for air 
5.) after finish line 
6.) do a test of Lactic through urin test or use Lactometer (don't ask me how to use it 'cause I don't know lol) 
7.) check the concerntration 
8.) whoever has the LOWEST concerntration,take that runner time for running and meter to find speed you'll be able to spot out who has used aerobic respiration during the race

A runner will have to use anaerobic respiration process,first of all we must need to know the basic difference between the anaerobic respiration and aerobic type of respiration.

What is anaerobic respiration?

Anaerobic respiration has been performed  by the burning of the glucose directly just without the presence of the oxygen giving out the lactic acid as well as energy. Aerobic respiration has been done by the burning glucose as well as oxygen giving out water + engergy + Co2

The basic steps that has been taken to observe the aerobic respiration during race.

Immedietly Take a stop-watch Than Take TWO or more runners Just Unlike Olympic race match ask one of the runners to run their fastes and the others to gradually just speed up. Kindly make the runners breath hard for the air Just do a test of Lactic through urine test or use Lactometer check the concentration frequentlywhoever has the lower concentration, just take that runner time for running and meter to find speed you'll be able to spot out who has used aerobic respiration during the race.

Therefore, A runner will have to use anaerobic respiration process,first of all we must need to know the basic difference between the anaerobic respiration and aerobic type of respiration.

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1. Explain how human activities can cause an imbalance in biogeochemical cycling and lead to problems such as cultural eutrophication and fish kills

Answers

Biogeochemical cycles are the normal patterns of natural phenomenons that occur in the earths spheres, interacting and interdepedent. These cycles help to sustain life on earth as well as to maintain the resources that provide energy. When man-made structures and technologies are put into action, they distort the natural state of these said cycles causing them to rapidly occur or to forcefully be available. The result also of pollution and the increase in greenhouse gas.

     Human activities that majorly impact the biochemical cycling are pollution through extraction of fossil fuels. The burning and use of these fuels also impacts the whole process of the cycling. Causing the processes to occur rapid disrupting the whole cycle. As far as Cultural eutrophication goes the pollution created by the use of fossil fuels and also the use of fertilizers are then put into our water system. The water then inevitably goes into our lakes and streams causing mass fish kills and water pollution.

Which part of a watershed is a lake or even an ocean where the water ends up?
A. The basin
B. The divide
C. The collection area
D.The boundary

Answers

Answer:

A. The basin

Explanation:

A client complains to the health care provider that he keeps getting hard skin on the sides of the great and little toes when he wears certain pairs of shoes.

Answers

This is probably caused by ill-fitting shoes putting pressure on certain areas of the foot and would be called a Corn.
In this context, corn refers to some sort of calluses that appear if we constantly use ill-fitting shoes. The pressure that caused by the ill-fitting shoes will create some sort friction that will make the skin on that area become thicken.

Agustín Iturbide was _____.

Answers

He was a Mexican politician and an army general.

Answer:

a Creole Royalist general

Explanation:

I'm not sure if this is the correct answer

Which tools measure the volume of liquid? Check all that apply.

a graduated cylinder
a meniscus
a pipette
a beaker
an electronic balance
a caliper

Answers

graduated cylinder, pipette, and beaker all hold liquid

Answer: a graduated cylinder, a pipette , a beaker

Explanation:

The volume of the liquid can be define as the space that a liquid acquires in rest or in a container. It depends upon the shape of the container. It is expressed in terms of cubic centimeters, liters and milliliters.

Among the options given, a graduated cylinder, a pipette and a beaker can be used for measuring the volume of the liquid. This is because of the fact that all of them exhibit a scale on their outer walls which helps in measuring the accurate volume of the liquid poured in the instrument.

Which statement best describes the difference between a physical change and a chemical change? Question 3 options: A physical change produces a new element, and a chemical change results in a bond breaking between atoms. A chemical change results in a new element being formed, and a physical change results in a new compound being formed. A chemical change does not result in a new substance being formed, whereas a physical change does. A physical change is a change from one state of matter to another; a chemical change results in a new substance formed.

Answers

A physical change can be described as the changes which affect the form of a substance while the chemical composition of the substance remains the same. When a substance undergoes a physical change, the state of matter is changed. A chemical change, on the other hand, can be described as the change which affects the chemical composition of a substance and results in the formation of a new substance.

Hence, the answer is 'A physical change is a change from one state of matter to another; a chemical change results in a new substance formed'.

In a physical change, the state or form of the substance changes without altering the substance itself, while a chemical change forms a new substance with different properties from the original one. The rusting of iron is an example of a chemical change, whereas water boiling or freezing are examples of physical changes.

The best statement that describes the difference between Physical and Chemical Changes is: 'A physical change is a change from one state of matter to another; a chemical change results in a new substance formed.'

In a physical change, the substance itself does not change, but its state or form does.

For instance, water boiling to become steam or freezing to become ice represents a physical change as the water is still water whether it's in a liquid, solid, or gas form.

On the other hand, a chemical change entails the formation of new substances with properties different from the original ones.

A typical example includes the rusting of iron - where iron reacts with water and oxygen to form a new substance, rust, which is distinct from the original iron.

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What is the difference between a cell, a tissue, an organ, and a system in an animals body

Answers

all of them are Levels of Organization of Living Things

Do you find Dr. Natterson-Horowitz's argument that physicians can learn a lot from veterinarians convincing? What part of her argument is, to you, especially strong or weak?

Answers

In analyzing the arguments and claims made by Dr. Natterson-Horowitz in outlining the things that physicians can learn from their veterinarian counterparts, it is apparent that the argument is convincing on the grounds that the studies and statistics utilized to make her point are solid and relevant to the topic in question.

If all of geologic time is represented as a single year, and the jurassic period is in the middle of the mesozoic era, what month were dinosaurs most abundant on the planet?

Answers

If all of geologic time is represented as a single year, and the Jurassic period is in the middle of the Mesozoic era, than dinosaurs would be most abundant on the planet during the month of December. This is because the Mesozoic Era as an interval of geological time took place from about 252 to 66 million years ago, while earth's time scale is about 4.54 billion years old, and all of geological time even older. Compared to all of the geological time, dinosaurs are fairly recent.

Final answer:

Dinosaurs were most abundant during the Jurassic period, the middle period of the Mesozoic Era. If geologic time were condensed into a single year, the peak abundance of dinosaurs, corresponding to the Jurassic period, would fall around the 'summer months,' particularly from June to August.

Explanation:

If we represent all of geologic time as a single year, the Mesozoic Era, known as the Age of Reptiles, would be a significant part of that timeline. During the Mesozoic Era, there were three major periods: Triassic, Jurassic, and Cretaceous. The Jurassic period is recognized as the middle period of the Mesozoic Era, often referred to as the golden age of dinosaurs due to their abundance during this time.

Dinosaurs became increasingly important throughout the Mesozoic Era, filling most terrestrial niches and dominating the landscapes. They first appeared during the Triassic period, around 251 million years ago, and their domination continued through the Jurassic, reaching their peak, until their extinction at the end of the Cretaceous period, approximately 66 million years ago.

Assuming the Mesozoic Era spans from January to December in a single calendar year, the Jurassic period would be situated roughly from late April to mid-September, with dinosaurs being most abundant during the 'summer months' of this hypothetical geologic calendar. Therefore, if geologic time were a single year, dinosaurs would have been most abundant around June to August, the middle of the Mesozoic Era's equivalent to the summer.

The components of poison ivy and poison oak that produce the characteristic itchy rash are catechols substituted with long-chain alkyl groups. consider the structural characteristics of catechols and not the properties of the exposed skin. if you were exposed to poison ivy, which mixture would be best for removal of the alkylcatechol?

Answers

The mixture that will be the best for the removal of alkylcatechol is SOAP AND WATER.
Washing the affected area with soap is necessary because the alkylcatechol has an oily property which makes it to adhere strongly to the skin. Application of water helps to wash the soap away and to cool the affected part. The washing of the affected part should be done immediately after the exposure.

Answer:

The correct answer is – wash the affected area with soap, water, and sodium bicarbonate (baking soda)

Explanation:

Soap emulsifies and dissolves the alkyl  group of alkylcatechol which is hydrophobic, as it is known that pKa of alkylcatechol is around 8, its -OH group ionizes in a slightly alkaline solution of baking soda (bi carbonate) and makes the compound much more water soluble and relaxes the effect of poison ivy.

Further explanation:

Poison ivy and poison oak are plants that cause itchy rash when they come in contact with an individual. A substance are found in these plants known as urushiol,  that is the reason for the rashes.  

These substances contains mainly catechols. Catechols of poison ivy contains C17 where as poison oak contains C15 side chains.

Longer the side chains present in the catechols, stronger the reaction will be and tougher to remove or wash them. The alkyl group is hydrophobic so it is not easy to wash it off with water or soap all alone. Bicarbonate solution helps in removing it.

It is believed that characteristic itchy rashes are due to structural properties of catechol than properties of exposed skins. Thus it is needed to dissolve or break the side chain of catechols.

Soap water helps in emulsifying the alkyl catechols and make it dissolve as it is hydrophobic in nature. For washing it more easily, solution of baking soda can be used as it can ionize the -OH group of the catechols which makes it more water soluble.

Learn more:

1. Poison ivy  https://brainly.com/question/601145  ( answer by Exvited  )    

2. use of urushiol https://brainly.com/question/1219325 ( answer by JcAlmighty)

Keywords :

Poison ivy, poison oak, urushiol, catechols, bicarbonate, water, soap, rashes, itchy, alkylcatechols.

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