A scientist adds 5 mcg of the mineral cadmium to the daily diet of 100 4-week-old laboratory mice. After twelve weeks, the researcher weighs and takes blood samples from each mouse. According to her findings, the mice lost weight during the 12-week period and they have abnormal levels of certain hormones in their blood. Based on this information and your knowledge of scientific research, what would you tell the researcher about her findings?
A. She needs to conduct more tests on the animals' blood, because her findings are
incomplete.
B. The findings are not meaningful or valid because of the way she designed her study.
C. Her results are very interesting and she should report her findings to nutrition scientists, so
they can repeat her study and confirm the results.
D. The findings need to be summarized in a research article for submission to a peer-reviewed
nutrition journal.

Answers

Answer 1

Answer:

B. The findings are not meaningful or valid because of the way she designed her study.

Explanation:

In a scientific experiment, a control group is a group of individuals/subjects that do not receive the experimental treatment. The control group is used to determine how much of an impact a treatment (in this case, cadmium intake) has on the variables being examined in the participants who are subjected to the experimental treatment. In any experiment, it is imperative to include a control group in order to validate experimental results. In this case, it is not possible to confirm that the loss of weight and abnormal hormone levels are due to cadmium uptake because only a control group would elucidate the contribution of cadmium intake on the variables being tested.


Related Questions

Explain how being familiar with medical terminology could improve your job performance in the healthcare field

Answers

Answer:

it would show whomever that you know what your doing and it would help you understand the things your doing

1. Which of the following syringes should be used to measure 3.6 mL?.

Answers

Answer: You should use a 5ml syringe if available

Explanation:

A new patient dressed in dirty clothes and with poor personal hygiene comes to the physician's office without an appointment. The patient's appearance indicates that this person may not be able to pay for the office visit. In terms of nonverbal communication displayed by the office staff. how could the patient feel he or she is not to be seen? What body language will indicate that the medical assistant cares? Why is observation an important component of communication? ​

Answers

Answer:

The patient feels very sad.

Explanation:

The patient feels very sad when he knows that he or she can't be seen by the doctor due to having no money. The sad mood of the medical assistant is the body language that will indicate that the medical assistant care about the patient. Observation is an important component of communication because observing people rather than just listening to them, is an important way of gathering information about the health condition of the patient.

Observation seems to be highly essential because it provides us with the real nature of the personality, and if the patient becomes aware that he is being observed by another individual, he usually hams it up, which is known as the Hawthorne effect.

Unwanted nonverbal communication that indicates that perhaps the patient won't be accepted by the doctor includes strange facial movements, lack of eye contact, body gestures such as nodding, and so on.Whenever an officer makes a favorable nonverbal response, such as making an acquaintance, smiling, keeping visual contact, and so on.

Thus the above response is appropriate.

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Completar el espacio en blanco:
Los musculos se encargan de los ________voluntarios e involuntarios.
existen tres tipos de tejido muscular__________ , __________ y _________.

Answers

El texto completo es:

Los músculos se encargan de los movimientos voluntarios e involuntarios. Existen tres tipos de tejido muscular: Cardiaco, Esquelético y Liso.

Explanation

El cuerpo esta compuesto por diversos tejidos y sistemas que permiten un buen funcionamiento. Uno de ellos es el sistema muscular que se encarga de los movimientos del cuerpo con ayuda del sistema óseo. Los músculos se clasifican en tres grupos a partir de las funciones que desempeñan en el cuerpo. El primer grupo son los cardiacos que son los músculos ubicados en el corazón y que se mueven involuntariamente para que la sangre sea bombeada de allí a todo el cuerpo. El segundo grupo son los esqueléticos que se encargan de los movimientos voluntarios del cuerpo (caminar, correr, levantar los brazos, parpadear, hablar, mirar, entre otros). En tercer lugar están los músculos lisos que se ubican en las paredes de los órganos y contribuyen al buen funcionamiento de los mismos.

write a letter to your chairman of your school discussing two ways to help students to achieve a higher results​

Answers

Dear Chairman,
I have some ideas on helping students achieve higher results. First idea I propose is making a study time where students can study in their most comfortable way possible. This promotes more learning and will make the process much faster as students will be doing it in a way that suits them. Another idea is to give lessons on how to be more productive at home and balancing everything to make time for self care and studying.
Sincerely, (your name)

explain why impact studies is a crucial tool for decision makers?​

Answers

Environmental Impact Assessment (EIA) is a process of evaluating the likely environmental impacts of a proposed project or development, taking into account inter-related socio-economic, cultural and human-health impacts, both beneficial and adverse
UNEP defines Environmental Impact Assessment (EIA) as a tool used to identify the environmental, social and economic impacts of a project prior to decision-making. It aims to predict environmental impacts at an early stage in project planning and design, find ways and means to reduce adverse impacts, shape projects to suit the local environment and present the predictions and options to decision-makers. By using EIA both environmental and economic benefits can be achieved, such as reduced cost and time of project implementation and design, avoided treatment/clean-up costs and impacts of laws and regulations
Although legislation and practice vary around the world, the fundamental components of an EIA would necessarily involve the following stages

You are orienting new staff to a clinical unit that provides palliative care. A new employee asks what "grief is exactly. Which of the following is the correct definition of grief?

Answers

Answer:

Intense sorrow.

Explanation:

Grief is defined as the response to loss of someone or some living thing that has died, to which a bond of love or affection was formed or in simple definition, grief is defined as intense sorrow, especially that is caused by death the death of someone who has a great value in the life of that person such as parents, brother, sister, son, daughter, wife and friend etc so the above are the two definition of grief.

Which STI is known as the “great imitator”? Explain Why

Answers

Syphilis is called the “great imitator” as it can present very similar to a large variety of other diseases, which can sometimes complicate its diagnosis, especially in the later stages. The presentation of syphilis also varies depending on in which of the four stages it presents in.

If helped mark me the brainiest!!

Think about someone who you admire as a leader. What do you like about the way that they lead? Which leadership style or framework do you think most captures their style? What did they do that makes you put their style in that category? What kind of group were they leading? Why was their style well suited to that kind of group? Can you think of a time when you felt someone's leadership style did not suit the situation? Why was it a bad fit? Please do not name names in this discussion. You can use pseudonyms if that is helpful.

Answers

Answer:

Leadership style is a leader's approach to providing direction, implementing plans, and motivating people. In 1939, psychologist Kurt Lewin and a team of researchers determined that there were three basic leadership styles: Authoritarian (Autocratic), Participative (Democratic) and Delegative (Laissez-Faire)

Explanation:

Leadership styles based on authority can be 4 types:

Autocratic Leadership,

Democratic or Participative Leadership,

Free-Rein or Laisse-Faire Leadership, and.

Paternalistic Leadership.

Which view is consistent with the family-systems perspective?
Select one:
a. A person's behavior in a family is tied to the behavior of all the other
family members.
b. Therapy cannot be attempted unless it is possible to treat everyone in
the family.
c. Dysfunctional families are usually caused by a single family member.
d. Families will always support a family member who makes a change to
improve themselves.

Answers

Answer:

D.

Explanation:

how to create healthy relationships and how to recognize and respond to relationship violence.

Answers

Answer:

Creating happy and healthy relationship with anybody takes work from all sides of the equation. What I mean is that in any relationship both people must put in the time and effort in order to keep that relationship stable. Signs of an abusive or unhealthy relationship are:

significant changes in behavior, isolation, marks on face or arms & legs, constantly with the abuser.

Your Gram stain is complete and correct which of the following would apply to the image you see

Answers

Answer:

hi how are you

Explanation:

You can observe gram-negative bacilli on this field and You can observe gram-positive cocci on this field would apply to the image you see. Hence, options A and D are correct.

What is gram-negative bacilli?

The majority of currently used antibiotics as well as a number of other drugs are losing their effectiveness against gram-negative bacteria. These bacteria have the capacity to transmit genetic material that makes it possible for other bacteria to develop drug resistance, and they are naturally inclined to come up with new ways to do so.

Gram-negative organisms that are frequently isolated include Pseudomonas, Klebsiella, Proteus, Salmonella, Providencia, Escherichia, Morganella, Aeromonas, and Citrobacter. Gram-positive bacteria can live with Gram-negative bacteria or even be the dominant organisms in some situations.

Gram-negative bacteria have a high level of antibiotic resistance, making them one of the most important public health concerns in the world.

Thus, options A and D are correct.

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The options are missing-

1. You can observe gram-negative bacilli on this field

2. You can observe gram-neutral bacteria on this field

3. You cannot distinguish any bacteria on this field

4. You can observe gram-positive cocci on this field

What is your favorite age range of patient to work with and why?

Answers

Answer:

I would say early twenties to mid-thirties because they are quite polite and don't ask too many questions.

The set point theory of body weight regulation suggests that when someone loses weight below his or her set point, signals are produced that cause an increase in _____ and a decrease in _____ such that weight gain is induced.

Answers

Answer:

According to the set point theory, changes in adipose tissue mass are communicated to the brain, resulting in changes in energy expenditure. The set point theory of body weight regulation suggests that when someone gains weight beyond his or her set point, signals are produced that cause an increase in _____ and a decrease in _____ such that weight loss is induced.

Explanation:

:)

As per the set-point theory of body weight regulation, if someone loses weight below set point, signals have produced that cause an increase in food intake and a decrease in energy expenditure, resulting in weight gain.

What is the set-point theory?

As per set point theory, the body of human beings works hard to keep the weight in a certain range. Many people maintain a relatively narrow range of body weight throughout their life.

Some people can keep them lean when they're young, but they can gain weight after they reach middle age.

Thus, it can be concluded that such situation cause an increase in food intake and a decrease in energy expenditure, resulting in weight gain.

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Test nhanh HP Ab nguyên lý hoạt động

Answers

Explanation:

Hp-fast is a brand-new rapid antigen test (RUT) that hasn't been tested in kids yet. The study's goal was to evaluate and compare the Hp-fast and CLO tests in youngsters prospectively. The research included prospectively children with gastrointestinal problems and symptoms who had a confirmatory upper endoscopy.

Anong ibig sabihin ng Non communicable desease

Answers

Answer:

Ito ay sakit na hindi nakakahawa

Epidemiology can you help me notice what incident rate this data set is ?

Answers

Answer:

Incidence can tell us how many cases of a particular factor have been suffered by a specified population in a given period of time. It is a ...

Explanation:

For example, a person who is newly diagnosed with diabetes is an incident case, whereas a person who has had diabetes for 10 years is a prevalent case. For chronic diseases, such as diabetes, a person can have an incident case just once in a lifetime.

Reasons you should take care of your own health?

Answers

Answer:

for healthy body and long life

Which of the steps below si not important for willness

Answers

Which steps? We need more information

How can someone distinguish between positive and negative stressors in his or her life?
O Only negative stressors create strong and prolonged anxiety.
O Only negative stressors cause a change in behavior and outlook.
O Only positive stressors influence the body and the mind.
O Only positive stressors result in higher heartbeat and breathing rates.

Answers

Hi !

How can someone distinguish between positive and negative stressors in his or her life?

Answer:Only negative stressors create strong and prolonged anxiety.

Answer:

A.) Only negative stressors create strong and prolonged anxiety.

Explanation:

Only negative stressors create strong and prolonged anxiety, which is how to distinguish between positive and negative stressors.  

Can someone help please?

Answers

Answer :

It should be no as papers or banaba peels are not biomedical waste

1.
would be the best hands-on lesson for children to learn about healthy foods?
Cutting pictures from magazines to create a poster of healthy foods
Using a recipe for fruit salad to prepare a healthy snack
Showing a picture of a fruit salad to demonstrate a healthy snack
O Sorting pictures of foods into healthy and not-healthy piles

Answers

Answer:

Sorting pics of foods into healthy and non healthy and also about besh hands on lesson

Explanation:

kids need fun so they learn

For some type of epilepsy, neurologists recommend an extremely low-carbohydrate diet. This will force the body to breakdown fat as an energy source. What by-product of breaking down fat can also be used by the brain as an energy source?

Answers

Answer:

glucose

Explanation:

the after math of a faty acid break down

The brain utilizes glucose and ketone bodies for energy harvesting. Adipose tissue generally uses fatty acids and glucose for getting energy.

What is epilepsy?

A central nervous system disorder in which brain activity becomes abnormal, causing seizures sensations and loss of awareness is referred to as epilepsy.

The brain utilizes glucose and ketone bodies for harvesting energy. Adipose tissue generally uses fatty acids and glucose for getting energy.

Thus, it can be concluded that the by-product used as energy source by brain is glucose.

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How does it affect my pulse rate and my life

PLEASE HELP IS FOR NOW :(

Answers

Answer: this is the thing

Explanation: it was last recorded in 2020 soo

Your pulse is your heart rate, or the number of times your heart beats in one minute. Pulse rates vary from person to person. Your pulse is lower when you are at rest and increases when you exercise (more oxygen-rich blood is needed by the body when you exercise).

Which list includes three good sources of health information?

Answers

Answer:

A. a school nurse, the Internet, family members.

B. the Internet, a health care provider, advertisements.

C. friends your age, the Internet, younger siblings.

D. television infomercials, online advertisements, soft drink cans.

which of these should a teenager consume every day?

A. at least one serving of fish
B. a variety of proteins
C. at least give eggs
D. from 10 to 12.5 ounces of meat

Answers

The answer should be A

What’s the first sign of hypothermia?

Answers

the first sign of hypothermia is shivering!!

Match the fat soluble vitamin with its primary function.
The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Each numbered item is followed by a drop-down. Select the letter in the drop down that best matches the numbered item with the lettered alternatives.
a. Antioxidant
b. Blood clotting
c. Vision
d. Bones & teeth
1. Vitamin A abcd
2. Vitamin D abcd
3. Vitamin E abcd
4. Vitamin K abcd

Answers

Answer:

a) antioxidant = vitamin E

b) blood clotting = vitamin K

c) vision = vitamin A

d) bones and teeth = vitamin D

fdahrfgxsfgzdfh h ghthgh

Answers

What is this -,- ????????

Answer:

Explanation:

Please give me brainliest ;D

Have a nice day!

what is ecstasy?????​

Answers

An excited state of being OR a club drug
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