subject attrition is a concern for which type of study?

Answers

Answer 1

Subject attrition is a concern for longitudinal studies, which are types of research that follow participants over time. A study is defined as longitudinal when it is repeated observations of the same variable on the same subjects over time.

It’s also known as panel studies.Longitudinal studies provide a means of examining changes in variables over time and help to identify temporal relationships between events or phenomena. One disadvantage of longitudinal studies is that subject attrition or drop-out rate is a concern.
Subjects may drop out of the study for various reasons, including a lack of interest, difficulty in complying with study procedures, relocation, illness, or even death.In longitudinal studies, attrition poses the threat of reducing the internal validity of research by decreasing the size and representativeness of the sample. Consequently, researchers can minimize attrition in longitudinal studies by maintaining regular contact with participants, incentivizing participation, and selecting subjects who are likely to remain in the study over time.
The study design should be carefully planned, and subjects should be selected based on the nature of the study's research questions to increase the chance of obtaining valid results.

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Related Questions


Ellis always sticks to just one drink when going out with friends. What is the ONLY option if Ellis wants to stick to one standard serving of alcohol?

Answers

If Ellis wants to stick to one standard serving of alcohol, the only option is a 1.5 ounce shot of liquor containing 40% alcohol. The correct option is 3.

What is the standard alcohol serving size?

One standard serving of alcohol in the United States contains approximately 14 grams of pure alcohol, which can be found in:

12 ounces of regular beer, which contains about 5% alcohol.5 ounces of wine.1.5 ounces of distilled spirits.

The missing options of the question are:

A 16-ounce bottle of beer with 4.5% alcohol. A 5-ounce glass of wine with 14% alcohol.A 1.5 ounce shot of liquor with 40% alcohol.A 12-ounce can of beer with 5.5% alcohol

If Ellis wants to stick to one standard serving of alcohol, the only option is a 1.5 ounce shot of liquor containing 40% alcohol.

Thus, the correct option is 3.

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Major defects in the health care system in the United States health care system include
I. Rising healthcare expenditures
II. Considerable waste and inefficiency in the healthcare system
A) I only
B) II only
C) both I and II
D) neither I nor II

Answers

Major defects in the U.S. healthcare system include both rising healthcare expenditures and considerable waste and inefficiency.

The U.S. healthcare system is plagued by rising healthcare expenditures, which pose a significant challenge for individuals, businesses, and the overall economy. The cost of healthcare has been steadily increasing over the years, outpacing inflation and wage growth. This has resulted in a heavy financial burden on individuals, leading to higher insurance premiums, co-pays, and out-of-pocket expenses. The rising costs also strain government budgets, as healthcare spending accounts for a substantial portion of federal and state expenditures.

Additionally, the U.S. healthcare system suffers from considerable waste and inefficiency. Numerous studies have highlighted the high levels of unnecessary medical procedures, redundant tests, administrative complexities, and fragmented care. These inefficiencies not only drive up costs but also compromise the quality of care and patient outcomes. The complex and fragmented nature of the system, with multiple payers and providers, contributes to administrative inefficiencies and a lack of coordination among healthcare entities.

In conclusion, the U.S. healthcare system faces major defects in the form of rising healthcare expenditures and significant waste and inefficiency. Addressing these challenges requires comprehensive reforms aimed at controlling costs, improving care coordination, reducing administrative complexities, and promoting value-based healthcare delivery.

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Would you say tthat performing a song by a songwriter you admire is no homage, explain

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Performing a song by a song writer you admire is  :  Homage

Homage

Homage is a special respect or acknowledgement given to a person publicly. Promoting an art work or song written by a songwriter in a way of promoting the artistic work is a typical example of a Homage.

Homage is most pronounced in a feudal system whereby the landholders provide lands to tenants in exchange of Homage.

Hence we can conclude that performing a song by a songwriter you admire is a form of Homage.

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Describe how geneticists used technology to save eggplants from predatory insects.

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Geneticists have used a technology known as genetic engineering to save eggplants from predatory insects. Specifically, they have inserted a gene from a bacteria called Bacillus thuringiensis (Bt) into eggplants.

This gene produces a protein called Bt toxin that is toxic to a range of insect pests, including the fruit and shoot borer and the spotted beetle, which are common predators of eggplants.
The process involves inserting the Bt gene into the eggplant's genome using a technique called transformation. This technique involves taking a small piece of DNA containing the Bt gene and inserting it into the eggplant's cells. The cells are then allowed to grow into whole plants that produce the Bt toxin in their tissues.
When insects feed on the eggplant, they ingest the Bt toxin, which binds to their gut lining, causing it to rupture and kill the insect. The Bt toxin is highly specific to insects and does not harm other organisms, making it an environmentally friendly and effective pest control strategy.
Overall, genetic engineering has provided a powerful tool for saving eggplants from predatory insects. By inserting the Bt gene into eggplants, geneticists have created a crop that is highly resistant to insect pests, reducing the need for harmful chemical pesticides and promoting sustainable agriculture.

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what are the two major ways that people can reduce the risk of type 2 diabetes? ​

Answers

Losing weight

Eating healthy

Making Sure you regularly exercise

By not smoking

Which one is correct? Help

Which one is correct? Help

Answers

Answer:

b

Explanation:

letter B is correct :)

Which statement best explains why animals have papillae?

Answers

These tiny spines, called papillae, can transfer large amounts of saliva from mouth to fur, which not only cleanses Fluffy down to her skin but also lowers her body temperature as the saliva evaporates.

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that's the most likely cause someone to develop eating disorder?
a.Ads showing models with unusually large body compositions
b.Ads showing unusually thin models
c. Ads that communicate messages with words instead of pictures
d.Ads showing models with a wide variety of healthy body compositions

Answers

Answer:

Generally, answer B would be the right one.

Explanation:

[source;https://www.healthline.com/health/eating-disorders-causes-risk-factors]

"The exact cause of eating disorders is unknown. However, many doctors believe that a combination of genetic, physical, social, and psychological factors may contribute to the development of an eating disorder.

For instance, researchTrusted Source suggests that serotoninTrusted Source may influence eating behaviors. Serotonin is a naturally-occurring brain chemical that regulates mood, learning, and sleep, as well as other functions.

Societal pressure can also contribute to eating disorders. Success and personal worth are often equated with physical beauty and a slim physique, especially in Western culture. The desire to succeed or feel accepted may fuel behaviors associated with eating disorders,"

The reason for allowing Medicaid beneficiaries to choose between managed care providers is to:

control costs by having a narrow formulary requirement for all managed care plans [this answer is WRONG]

to spread the money around in an equitable fashion

create competition between managed care plans

to spread the money around in an efficient fashion

Answers

Allowing Medicaid beneficiaries to choose between managed care providers promotes competition, improves efficiency in fund allocation, and enhances beneficiary satisfaction.

The reason for allowing Medicaid beneficiaries to choose between managed care providers is to create competition between managed care plans and to spread the money around in an efficient fashion.

1. Competition: Allowing beneficiaries to choose between managed care providers encourages competition among these providers. When there is competition, providers strive to offer better services and benefits to attract more beneficiaries. This competition can lead to improved quality of care and greater satisfaction for beneficiaries.

2. Efficiency: By giving beneficiaries the choice, Medicaid can allocate funds more efficiently. When beneficiaries have the freedom to select their managed care provider, it ensures that funds are directed towards the plans that are most preferred by the beneficiaries. This helps in distributing funds in a way that meets the needs and preferences of the beneficiaries while ensuring cost-effectiveness.

3. Satisfaction: Allowing beneficiaries to choose their managed care provider empowers them to have a say in their healthcare decisions. This can increase their satisfaction with the Medicaid program and their overall healthcare experience.

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Would you expect mollusk eyes and/or insect eyes tohave a blind spots? Why or why not?

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Both mollusk eyes and insect eyes would typically have blind spots.

Would you expect mollusk eyes and/or insect eyes tohave a blind spots?

Mollusks have simple eyes that consist of a single lens and a layer of photoreceptor cells. These eyes do not have the ability to form a clear image and do not have a true retina. As a result, they are likely to have blind spots in their visual field.

It is worth noting that the size and location of blind spots may vary between different species of mollusks and insects, as well as between individuals within a species. Additionally, many animals have evolved mechanisms to compensate for their blind spots, such as by moving their eyes or heads to obtain a different angle of view.

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Analyze the vintage cigarette advertisement. How is the tobacco company reaching potential customers? Check all that apply

Answers

through television, football stadiums, billboards and packing.

Answer: A B E

Explanation:

Why do stars twinkle ? Explain.​

Answers

Answer:

Light from stars is bent causing it to "twinkle"

Explanation:

When the light reaches our atmosphere, it is bent or refracted( because it bounces and bumps in the cold and hot layers of our skies) causing it to appear twinkly.

Answer:

trailing zeros in a whole number with no decimal shown are NOT significan

Explanation:

trailing zeros in a whole number with no decimal shown are NOT significan

Which of the following statements BEST explains why third-degree burns are less painful than second-degree burns?
A.
Third-degree burns are not as severe as second-degree burns.
B.
Third-degree burns result in nerve damage, which reduces feeling.
C.
Blisters are a mechanism of second-degree burns to alleviate pain.
D.
Second-degree burns result in scarring.

Answers

Answer: B

Which of the following statements BEST explains why third-degree burns are less painful than second-degree burns?

Explanation:

Third-degree burns result in nerve damage, which reduces feeling.

Do third-degree burns have an effect on nerves?

Third-degree burns can severely harm or absolutely destroy nerve endings, making it so a sufferer won't begin with a sense ache with this form of burn. Destroyed nerve endings can also in no way completely heal. this will bring about a loss of sensation in the affected region for life.

What degree of burn causes loss of sensation?

A third-degree burn is very possible to reason permanent damage, and a fourth-diploma burn nearly constantly results in a complete loss of sensation in the affected region.

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Set one goal to improve your engagement for Thursday or Friday
On online school btw 10

Answers

I hope to get better at obtaining information

A compound that removes protons from blood plasma would cause the
plasma pH to

Answers

Answer:

decrease

Explanation:

not to sure but i think it becomes acidic

the process of producing a radiographic (x-ray) study of blood vessels after injection of a contrast medium to make these blood vessels visible is called

Answers

Angiography is the process of producing a radiographic study of blood vessels using a contrast medium. It is a valuable diagnostic tool for evaluating vascular conditions and guiding subsequent treatment decisions.

The process of producing a radiographic study of blood vessels after the injection of a contrast medium is called angiography. Angiography is a medical imaging technique that provides detailed visualization of blood vessels and their abnormalities. It is commonly used to diagnose and evaluate conditions such as arterial blockages, aneurysms, and vascular malformations.

During angiography, a contrast medium is injected into the blood vessels either directly or through a catheter. The contrast medium contains substances that are radio-opaque, meaning they absorb X-rays and appear bright on the resulting images. This allows the blood vessels to be clearly seen and assessed.

There are different types of angiography procedures depending on the specific blood vessels being studied. For example, coronary angiography focuses on the blood vessels of the heart, while cerebral angiography examines the blood vessels of the brain.

Angiography can be performed using various imaging techniques, including X-ray fluoroscopy, computed tomography (CT), or magnetic resonance imaging (MRI). X-ray fluoroscopy is the most commonly used method due to its real-time imaging capabilities, allowing for precise guidance during the procedure.

The angiography procedure involves positioning the patient on an X-ray table, inserting a catheter or needle into a blood vessel (typically through the groin or arm), and injecting the contrast medium. X-ray images or video sequences are then captured as the contrast medium travels through the blood vessels, providing detailed information about their structure, function, and any abnormalities.

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If you can't see your nose do your eye's pretend it is not there ?

Answers

Answer:

Our brain ignoring our own nose is a part of binocular vision, and peripheral vision may also play a role in why our brain is able to ignore the sight of your nose all day.

keeping it simple!! i have two questions

keeping it simple!! i have two questions

Answers

For the following:

29: Cardiovascular disease can be attributed to c. heredity30: The intensity of workout in b. 5

What is cardiovascular disease?

Cardiovascular disease is a broad term that includes a number of conditions that affect the heart and blood vessels. Some of these conditions, such as atherosclerosis, can be caused by controllable risk factors, such as high cholesterol and high blood pressure. However, other conditions, such as heredity, cannot be controlled.

The American Heart Association recommends that your heart rate return to 120 beats per minute (bpm) or below within 5 minutes of completing a workout. If your heart rate has not returned to 120 bpm within 5 minutes, it is likely that you have been working out too hard.

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Write any one component of psychological aspect affecting human population ​

Answers

Answer:

Mental health

Explanation:

Cuz it functions individual and social behavior, while also exploring the physiological mind

HELP THIS IS DUE TODAY!!

1 ) Which of the following statements is true?
A) Your lungs can store several hours' worth of oxygen.
B) Your body can't store oxygen at all.
C)Your body stores oxygen in your bloodstream.
D) Your body needs carbon dioxide to function properly.

2) What can you infer about the function of the ribcage?

A) It protects the lungs
B) It helps the lungs pump oxygen
C) It delivers oxygen from the lungs to the bloodstream
D) It connects the trachea to the lungs

3) Place the following events in sequence: A) Air pressure inside your lungs drops; B) The diaphragm contracts; C) Air from outside rushes into your lungs.

4) What word best describes the function of the trachea?
A) Pumping station
B) Entrance point
C) Muscle
D)Passageway

5) Where does the transfer of oxygen into the bloodstream take place?
A) In the heart
B) In the trachea
C) In the alveoli
D) In the nasal passages

6) What do capillaries have in common with veins and arteries?
A) They are all types of breathing passages
B) They all store oxygen and other nutrients
C) They are all types of blood vessels
D) They are all located in the lungs

7) The walls of the alveoli and capillaries are permeable. What does this mean?
A) Substances can pass through them
B) They are made of muscle
C) They are located throughout the body
D) They are made of bone

8) What term best describes the role of carbon dioxide in the human body?
A) Beneficial
B) Toxic
C) Harmless
D) Necessary

9) What do lung cancer and emphysema have in common? *
A) They both occur among almost everyday as they get older
B) They are both caused by the buildup of carbon dioxide in the lungs
C) They are both normal side effects of respiration
D) They are both caused by smoking

10) What happens when your diaphragm relaxes and moves upward?
A) Your lungs deflate and you breathe out
B) Your lungs inflate and you breathe in
C) Your alveoli transfer oxygen to your bloodstream
D) Your bloodstream transfers carbon dioxide to your alveoli

Answers

Answer:

1. B

2. A

3. B,A,C

4. D

5. C

6. C

7. A

8. B

9. D

10. A

Explanation:

Which parental statement indicates the need for further education related to bicycle safety for the school-age client?

Answers

Answer:

"My child should keep as far from the curb as possible when in the street."

Explanation:

In a street, a curb is defined as the raised sidewalk or the raised part of the road on the sides of the road that meets the other road way or the street.

Bicycle safety while riding a bicycle on the streets are very important. Following certain rules and being observant for any obstacles or speeding traffic is very important while riding a bicycle on the street. Also it is important to keep a safe distance from the curb or the raised section of the road on the sideways are crucial.

Thus further education on the bicycle safety should be given for the schools age client.

Thus the statement of the parent for further education on bicycle safety is that their children should keep away from the curbs as much as possible.

What is energy required by the body when in extremely cold temperatures for an extended period of time

Answers

Answer:

When the body is exposed to extremely cold temperatures for an extended period of time, it requires more energy to maintain its core temperature and carry out normal bodily functions. This is because the body must work harder to generate and maintain heat in order to prevent hypothermia, a potentially life-threatening condition.

The body's energy requirements in cold temperatures may increase due to several factors, including:

1. Increased metabolic rate: The body's metabolic rate increases in response to cold temperatures as a way to generate more heat. This means that the body requires more energy to fuel this increased metabolic activity.

2. Shivering: Shivering is a natural response to cold temperatures, as it helps to generate heat by contracting the muscles. However, shivering also requires energy, which can increase the body's overall energy needs.

3. Insulation: The body may require additional energy to produce and maintain insulation, such as through the production of body fat or the growth of thicker hair or fur.

In order to meet these increased energy needs, the body may require a higher intake of calories and nutrients, such as carbohydrates, fats, and proteins. It is important to note that in extreme cold conditions, it may be difficult to consume enough calories through food alone, and the body may need to rely on stored energy reserves, such as body fat, to maintain its energy needs.

justify the statement that health population and environment education is for the enrichment of quality of life​

Answers

Answer:

It is very true that Health, Population and Environment issues alongside education guarantees a quality life. Population is a very important aspect of the socio environment since each existing creature needs space and whenever they reproduce rapidly some of them will have to suffer as a result.

Explanation:

I majored in Health

a client has an exaggerated convex curvature of the thoracic spine. what is this condition called?

Answers

The condition you're referring to is called "kyphosis." It's characterized by an exaggerated convex curvature of the thoracic spine.

Kyphosis is a medical condition characterized by an abnormal curvature of the spine, resulting in a hunched or rounded back. It can affect people of any age, but it is more commonly seen in older adults due to age-related changes in bone density and muscle strength.

The most common type of kyphosis is called "postural kyphosis," which is usually the result of poor posture or slouching. This type of kyphosis can often be corrected with exercises that strengthen the back muscles and improve posture. However, if left untreated, it can lead to chronic pain and discomfort.

Another type of kyphosis is "Scheuermann's kyphosis," which is characterized by a more severe curvature of the spine, often leading to a "hunchback" appearance. This type of kyphosis is usually diagnosed in adolescence and can be associated with back pain, stiffness, and limited mobility. Treatment options may include physical therapy, bracing, or in severe cases, surgery.

In some cases, kyphosis can be a symptom of an underlying medical condition, such as osteoporosis, spinal tumors, or congenital disorders. Treatment of these underlying conditions may also involve treatment for the associated kyphosis.

Kyphosis can have a significant impact on an individual's quality of life, and it is important to seek medical attention if you experience symptoms such as back pain, stiffness, or limited mobility. Treatment options may vary depending on the severity and underlying cause of the condition, but early diagnosis and intervention can help prevent progression and improve outcomes.

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A drug has an overall elimination rate constant of 0.08 hr and a renal excretion rate constant of 0.02 hr . What is the fraction of drug metabolized through liver? (assumption: this drug is only eliminated from hepatic metabolism and renal excretion.)

75%

25%

20%

80%

Answers

The fraction of the drug metabolized through the liver is 75%. To calculate the fraction of drug metabolized through the liver, we need to consider the overall elimination rate constant and the renal excretion rate constant.

The overall elimination rate constant (k) includes both hepatic metabolism and renal excretion. Since the drug is only eliminated through hepatic metabolism and renal excretion, we can assume that the renal excretion rate constant (k_renal) represents the fraction of drug excreted by the kidneys.

The fraction of drug metabolized through the liver (f_metabolized) can be calculated as:

f_metabolized = 1 - k_renal/k

In this case, k_renal is given as 0.02 hr and k is given as 0.08 hr.

f_metabolized = 1 - 0.02/0.08 = 1 - 0.25 = 0.75

Therefore, the fraction of the drug metabolized through the liver is 75%.

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4 ways romantic relationships could distract students from academic goals

Answers

Answer:  Time Commitment: Romantic relationships can require a significant amount of time and attention. This time commitment can take away from the time a student has to dedicate to their academic goals, such as studying, completing assignments, or attending class.

   Emotional Distraction: When a student is in a romantic relationship, their emotions and thoughts can be preoccupied with their partner. This can cause a student to lose focus on their academic goals or become distracted during class or while studying.

   Stress and Anxiety: Romantic relationships can be a source of stress and anxiety, especially if there are conflicts or problems in the relationship. This stress can lead to difficulty concentrating on academic goals, increased procrastination, and decreased motivation.

   Neglect of Personal Needs: When a student is in a romantic relationship, they may prioritize their partner's needs over their own. This can lead to neglect of personal needs, such as getting enough sleep, exercise, or proper nutrition. Neglecting personal needs can have negative impacts on academic performance and overall well-being.

Explanation:

Answer: 1. Time commitment: Maintaining a romantic relationship takes time and effort, which can distract students from their academic goals. Spending too much time with their partner can result in less time spent studying, attending classes, or completing assignments.

2. Emotional stress: Relationship issues or breakups can cause emotional stress that can negatively affect a student's academic performance. It can be difficult to focus on schoolwork when dealing with emotional turmoil.

3. Social isolation: Students in relationships may become socially isolated from their peers, which can lead to fewer opportunities for academic collaboration and support.

4. Lack of motivation: Students who are in a happy and fulfilling relationship may be less motivated to excel academically, as they may feel that their emotional needs are being met by their partner rather than through academic achievements. This can result in a lack of drive to achieve academic goals.

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The force of a gas at words push divided the area of the walls of the container and it’s gas

Answers

Answer: Gas pressure

Explanation:

This force of a gas is called Gas pressure. This situation with the gas pressure is happening when the particles hit the walls and if they moving very fast while they are doing that, then the pressure is high and if they are moving slowly then the pressure is low.  

This type of pressure is caused when those walls are ht by gas particles.

Which of the following are ways in which drugs can be administered?

inhalation
orally
injection
topically

Answers

Answer: all of the above

Physical contact, droplets, and airborne are examples of what link on the
chain of infection?

A) Reserviours
B) Portal of entry
C) Modes of transmission
D) Susceptible host

Answers

C-mode of transmission

Hope this helps

Eating small portion sizes and planning your daily eating pattern so that you don't overconsume any nutrients is a healthful component of the diet known a?

Answers

Eating small portion sizes and planning your daily eating pattern so that you don't overconsume any nutrients is a healthful component of the diet known as moderation.

Healthy eating is very important to maintain health, have energy, feel good. It can be done by eating variety of nutritional food.

Therefore, daily eating pattern in moderation can include limiting sweets, adding nutritional foods, calculating calories and eating small portion sizes.

Eating in moderation, that is small portion sizes help avoid excessive consumption. A few benefits of this eating pattern are it helps with weight loss, hypertension, diabetes, cholesterol and also weight control.

A few ways to eat in moderation are eating in small sized dishes, avoiding trigger foods, eating vegetables as appetizers etc.

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Other Questions
which of the following characters cannot be used in filename? the monochromater is a part of the spectrophotometer that separates white light into the component wavelengths..A.TrueB.False DDT and other pesticides used over 50 years ago are still affecting the environment today. Scientists have found these substances in recent glacier runoff. Glacier runoff occurs during the summer, when precipitation that has fallen on glaciers during the winter is released. Ice layers from existing glaciers have been analyzed. The results of this analysis show that the concentrations of DDT and other pesticides were highest about 10 years after the use of these substances was banned. This information shows thatA. DDT and other pesticides cause glacier runoff during the summer.B. it takes humans over 50 years to analyze a glacier.C. precipitation helps to break down pesticides.D. the decision of one human generation may have an impact on future generations. Suppose the demand for oil is P=122Q-0.20. There are two oil producers who do not cooperate. Producing oil costs $13 per barrel. What is the profit of each cartel member? What is the answer to this? Plsss helpp 3x +y = -52x + 3y = -8 What is the answer for the question down below How does a person interact with others? Using an electric current, you can split liquid water to form two new substances, hydrogen and oxygen gases. Is this a change in state. Explain your answer. what is 4x5=2+3(x3) i need some help Please help1. Why is it important for us to know about the changing weather conditions? 2. What kinds of weather can we expect when a cold front is approaching? Jesse is inviting 12 friends to a party. He has 96 cookies. How many cookies will each friend get Scientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates havesimilar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence ofevolution?The similarities suggest that chickens and humans are the direct descendants of modern-day fish with tails and gill slits.The similarities suggest that vertebrates pass through each of the adult stages of their evolutionary history as they develop.oThe similarities suggest that vertebrates can undergo genetic changes during development that lead to the evolution of new species. *20 POINTS* WILL MARK BRAINLIEST the two men who served as key community leaders in the mid-5th century b.c. were and . You are angry because your brother or sister has borrowed your headphones without asking and you want to use them. How will you deal with your emotions and work out the problem with your sibling? Using the Rule of 72, answer the following question. Please show your work.Doug invested $2,500 into a Certificate of Deposit earning 6.5% interest. How long will it take to double Dougs investment? The stomach is an example of ....a cell or a tissue or an organ or an organ system What was Sojourner Truth fighting for? In the figure below, mZAHE = (6x + 7)and the mZAHK = 350. What is the valueof x?.B7K