A group of science students has been learning how the human circulatory system reacts
during exercise. The students measured their heart rates both before and after they ran five
laps around the school gym. This was repeated two more times, with a 5-minute rest period
between each trial. The average heart rates of the students are shown in the bar graph.

A Group Of Science Students Has Been Learning How The Human Circulatory System Reactsduring Exercise.
A Group Of Science Students Has Been Learning How The Human Circulatory System Reactsduring Exercise.

Answers

Answer 1

Answer:  HR increases with activity and decreases when at rest. By measuring HR before and after exercise, students will be able to predict their level of cardiovascular fitness.

Explanation:

During exercise, the heart pumps at a greater frequency to supply the working muscles with blood, i.e. oxygen. After exercise, the heart does not need to pump at a high rate to supply resting muscles with the necessary oxygen.  Therefore, the HR of the students is greater during exercise and slows dramatically at rest.

Students could measure their HR at the carotid artery in the neck, on the brachial artery just under the upper arm or at the radial artery on the wrist.

Answer 2
Final answer:

The question is about the changes in the human circulatory system, specifically heart rate, during physical exercise. The heart rate increases during exercise to pump more blood, hence delivering more oxygen and nutrients to the exercising muscles.

Explanation:

The subject of the question is related to the reactions of the human circulatory system during physical exercise, specifically running. The students engaged in an exercise, running five laps around their school gym, and measured their heart rates before and after this activity. They repeated this experiment two more times, allowing themselves a 5-minute rest period between each trial. The data they obtained, which is the average heart rate of the students, is represented on a bar graph.

The increase in heart rate during exercise is the body's natural response to increased demand for oxygen by the muscles. The heart beats faster to pump more blood, and hence oxygen, to the exercising muscles. This is a crucial biological adaptation that aids survival as it ensures that our muscles are supplied with the necessary oxygen and nutrients needed for the physical activity.

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Related Questions

use of which kind of drug is known to permanetly damge the brain

Answers

Answer:

Methamphetamine

Explanation:

But this depends weather you are talking medical wise or just all drugs.

"The use of certain types of drugs can lead to permanent brain damage. These include, but are not limited to, stimulants such as methamphetamine (meth), inhalants, and certain prescription drugs when abused.

However, the drug most notoriously associated with permanent brain damage is methamphetamine. Chronic use of meth can cause significant structural and functional changes in the brain, affecting areas responsible for memory and emotion. These changes can result in long-term cognitive impairments, increased risk of Parkinson's disease, and psychiatric symptoms such as paranoia, depression, and hallucinations.

Methamphetamine abuse leads to a substantial reduction in the brain's dopamine and serotonin transporters. Dopamine plays a key role in motor function, reward, and motivation, while serotonin is involved in mood regulation and sleep. The damage to these neurotransmitter systems is believed to be responsible for the cognitive and emotional deficits seen in chronic meth users.

Inhalants, which include a variety of substances such as solvents, aerosol sprays, and gases, can also cause permanent brain damage by destroying myelin, the protective sheath that covers nerve fibers. This damage can lead to problems with thinking, movement, and sensory perception.

Prescription drugs, particularly when used in ways other than prescribed or in combination with other substances, can also lead to brain damage. Opioids, for example, can cause hypoxia (lack of oxygen to the brain) which can result in permanent neurological damage. Benzodiazepines, when abused or used long-term, can impair cognitive function and memory.

It is important to note that the extent of brain damage can vary widely depending on the drug, the duration and frequency of use, the method of administration, and individual differences in metabolism and vulnerability to addiction. Early intervention and treatment can sometimes help to mitigate the effects of drug-induced brain damage, but full recovery is not always possible, emphasizing the importance of prevention and early treatment for substance abuse disorders."

What statistic is consistent with the idea that parenting as a teen is more challenging than parenting later in life?

Answers

School is an important fact that makes parenting as a teen harder than an adult

Answer:

The risk of preeclampsia is twice as high in females under age 18.

Explanation:

Studies show that women under the age of 18 and over 40 have a high chance of developing preeclampsia. This is because the body of these women is not at the appropriate time to support a pregnancy.

Preeclampsia is among the leading causes of maternal mortality. Preeclampsia is a condition that can appear in both pregnancy and postpartum, characterized by increased blood pressure associated with some organ dysfunction (kidney, liver, brain) and protein in the urine.

The first trimester is the most critical time for an embryo or fetus

Answers

Answer:

This is true

Explanation:

Answer:

True!

Explanation:

EDGE 2021

which of the following is not one of the four parts of the training process?

A. knowledge/skill acquisition

B. practice

C. disciplining employees

D. feedback and follow up

Answers

Answer:

C

Explanation:

Final answer:

The four parts of the training process are knowledge/skill acquisition, practice, performance monitoring, and feedback and follow up. Disciplining employees, though an aspect of employee management, is not typically part of the training process.

Explanation:

The training process typically involves several steps to help employees enhance their skills and abilities for better productivity. These steps typically include:

Knowledge/Skill Acquisition Practice Performance Monitoring Feedback and Follow-Up

In this context, option C, 'disciplining employees' is not considered a part of the standard training process. While discipline may be an aspect of overall employee management, it is not typically included within the steps of the training process. The purpose of the training process is mainly to provide employees with new skills or enhance existing ones, provide them with an opportunity to practice what they've learned, monitor their performance, and give them feedback on how they can improve.

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Your body’s response to stress can be divided into three stages , alarm stage​

Answers

Answer:

the alarm, resistance and exhaustion stages

Explanation:

how does a balanced diet help you obtain folate?

Answers

Explanation:

Folate is basically a salt which is present in the Folic Acid. It is simply the Vitamin B. This is present in many foods. Folate is needed by our body to make DNA and other genetic material. Folate also helps to divide our cells, which does the growth of our body systems. Folate is necessary to take by every person. In a balanced diet, folate is present naturally. So by consuming the balanced diet, a person can get the best out of the food and can consume good amount of folate which will help him in growth and improving health of the cells in a body. Some folate enriched foods are green veges, citrus fruits, beans, breads, pastas, cereals, rice, etc. So with the combination of a balanced diet, a good amount of folate enters the human body.

Which of the following is the main benefit of ozone?

Answers

Answer: Protects us from harmful UV

Explanation:

The Ozone layer acts as a shield or barrier to stop lots of harmful Ultra-violet light. Direct UV can be extremely harmful to our bodies and our society today.

Along with many other reasons like our air, UV is definitely the biggest the biggest factor.

what does this quote mean the earth do not belong we belong to the earth​

Answers

Answer:

we came from the earth, the earth did not come from us

Explanation:

leave the earth alone

what can be used to kill germs on surface

Warm soapy water

an approved pesticide

a sanitizer

alcohol​

Answers

your answer is a sanitizer

the answer is a sanitizer, at least in illinois...

How do you brush your teeth with Baking Soda?

Answers

Answer:

Add a little bit of water

Explanation:

Adding a little bit of water to baking soda will make a paste, which can be used as a toothpaste! Use it as you normally would with normal toothpaste, by brushing with a toothbrush and add a dab of the paste onto it, and then brush for about two minutes.

Final answer:

To brush your teeth with baking soda, wet your toothbrush and dip it in baking soda, then brush your teeth as usual. However, don't use baking soda as your only toothpaste substitute regularly, as it can be too abrasive and damage tooth enamel. Rinse your mouth thoroughly after brushing with baking soda.

Explanation:

To brush your teeth with baking soda, you can wet your toothbrush and dip it into some baking soda, or you can sprinkle a little baking soda onto your toothpaste before brushing. Then, brush your teeth as you normally would, making sure to reach all surfaces of your teeth and gums. Baking soda acts as an abrasive, helping to remove stains and plaque from your teeth.

However, it's important to note that you shouldn't use baking soda as your only toothpaste substitute on a regular basis. Baking soda is more abrasive than most commercial toothpaste, so using it too often or brushing too hard with it can wear away the enamel on your teeth.

It's also a good idea to rinse your mouth thoroughly after brushing with baking soda to make sure all traces are removed.

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Which of the following is most likely to be directly involved in public health

Answers

Answer: populalltion

Explanation:

The alleles for tall height in pea plant is dominant over short height. why do you always know the genotype of a short plant but not the genotype of a tall plant ?

Answers

Answer: you always know the genotype of a short plant because it always has a small allele but the genotype for a tall could be Tt or TT

Bro I'm dumb, help
(20 points)

Marco is hiking and notices his pal Jeff has gone from sweating enormously to not sweating at all and acting a little weird. Suddenly Jeff becomes dizzy and has a rapid pulse. Marco should do which of the following to help his friend? Accompany him to the stream next to the trail and cool him off with the running water Cover him with a blanket to keep him from going into shock Give him CPR Open his mouth and try to get him to drink

Answers

Marco should accompany him to the stream next to the trail and cool him off with the running water. The correct option is A.

Jeff is showing signs of heat exhaustion or heat stroke, which can be a serious medical emergency.

The best course of action for Marco to help his friend is to accompany him to the stream next to the trail and cool him off with the running water.

This will help lower Jeff's body temperature and alleviate the symptoms of heat-related illness.

It is important to provide immediate cooling and hydration in such situations.

Thus, the correct option is A, accompany him to the stream next to the trail and cool him off with the running water.

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Complete question:

Marco is hiking and notices his pal Jeff has gone from sweating enormously to not sweating at all and acting a little weird. Suddenly Jeff becomes dizzy and has a rapid pulse. Marco should do which of the following to help his friend?

A. Accompany him to the stream next to the trail and cool him off with the running water

B. Cover him with a blanket to keep him from going into shock

C. Give him CPR

D. Open his mouth and try to get him to drink

Final answer:

Marco should assist Jeff by cooling him down at a nearby stream and keeping him hydrated with small sips of water. Covering him with a blanket or administering CPR are not appropriate responses without signs of shock or respiratory failure, respectively.

Explanation:

When dealing with a situation where an individual has stopped sweating and is exhibiting signs of dizziness and a rapid pulse, it's crucial to recognize these as potential signs of heat exhaustion or heat stroke. In such a case, the most effective initial aid would be to cool the person down.

Marco should accompany Jeff to the stream next to the trail and help him cool off with the running water. This will help in lowering Jeff's body temperature. It's also important to make sure that he is in a shaded area and encourage him to drink water slowly to rehydrate gradually, as drinking too quickly can cause additional problems.

If Jeff were not responsive or was having trouble breathing, CPR might be necessary, but since Jeff is conscious and experiencing symptoms of heat-related illness, CPR is not the appropriate first response. Moreover, giving a blanket would only insulate and further raise his body temperature, making the situation worse. When someone is overheated, covering them up is the last thing you'd want to do.

__In the body joints is essential for good health wellness and efficient effective functioning

Answers

The answer will be Flexibility :)

If you compare the crimes of grand theft, prostitution, petty theft, and disorderly conduct, which is the more serious
criminal offense?

Answers

I’d say grand theft. Petty theft is honestly right behind. I seen people get some hefty sentences being caught up in those situations.

Final answer:

Grand theft is the more serious criminal offense when compared to prostitution, petty theft, and disorderly conduct, as it typically involves significant value and is considered a felony, while others are categorized as public order offenses, often with less severe consequences.

Explanation:

When comparing the crimes of grand theft, prostitution, petty theft, and disorderly conduct, grand theft is considered the more serious criminal offense. Theft can be graded by degrees or as petty theft, which involves the theft of property with low value, and grand theft, which involves the theft of property with significant value. According to the law, petty theft is generally a misdemeanor, while grand theft is typically considered a felony, felony-misdemeanor, or gross misdemeanor, particularly if the amount stolen is substantial or the item is a firearm. By contrast, offenses such as prostitution and disorderly conduct, though they have their own legal consequences and social implications, are generally classified as public order offenses and are often viewed as less severe than major property offenses like grand theft.

Which habit is safe and can prevent accidental injury?


clearing a path

setting an alarm to wake up on time

refusing to watch where one is going

doing things spontaneously

Answers

Answer:

clearing a path

The habit which is safe and can prevent accidental injury is clearing a path. Therefore, option A is correct.

What is an accidental injury?

The term "accidental injury" refers to a variety of sudden, unforeseen, and external events that happen against the wounded party's volition and hurt them while undergoing a medical examination or treatment.

Every year, many people throughout the world suffer permanent disabilities or injuries as a result of accidents, which are a common part of the human experience. Property loss or damage occurs in many accidents. The medical term for the accident is incident. We should be completely aware and should notice everything to reduce the risk of accidental injuries.

The habit which is safe and can prevent accidental injury is clearing a path. Therefore, option A is correct.

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Why do people give in to negative peer pressure?

Answers

ANSWER:

People give in to negative peer pressure because they have a low self-esteem and low confidence level.

EXPLANATION:

People who lack the required support and confidence give into negative peer pressure.  Peer pressure is the pressure that comes from people in whose company one stays in for most of the time. Peer pressure can be positive or negative. Negative peer pressure further lowers the self-esteem and confidence of a person because he or she is always nudged by the peers for the negative traits.

Answer:   The person might have been abused, bullied, or called names for a long time, and they sometimes think that these things are true-

Item 5 Which large organ in the human body located above the stomach helps digest food and clean the blood? liver large intestine small intestine esophagus Assessment

Answers

The small intestine is the largest organ

ANSWER:

Liver is the large organ "located above the stomach" and helps to digest food and clean the blood.

EXPLANATION:

The Liver filters the blood that comes from the digestive tract. This filtered blood is then carried to all other parts of the body. The liver also secretes bile juice that helps to breakdown the fats from the food thereby aiding the digestion of food. It is important for the liver to remain healthy so that it can function in the right manner. If there are problems with the functioning of the liver, the body may develop several health problems.

Explain in your own words the history of the patient care technician

Answers

Answer:

A patient care technician is an associated health proficient who provides direct care to patients with or without the supervision of enrolled nurses. Patient care technician's essential position is to help medicinal staff total undertakings around their assigned unit or center's and look after patients needs.  

Healthcare technicians are regularly found in specialty clinics, intensive care, emergency departments, or laboratory collection facilities. Technicians will perform fundamental cardiology reports, for example, EKG's and will have essential comprehension of real capacity. The technician is a necessary individual from the unit-based healthcare group, they add to the progression of care by diminishing fragmentation through decentralization of selected diagnostic and therapeutic treatment modalities

what is whiplash ...........................

Answers

Answer:

whiplash is a neck injury due to forceful movement of the neck usually occurs during car accidents

Explanation:

1. A movie.

2. A injury that could occur.

3. A song that a few members of NCT 127 created.

what is the main goal of recommended dietary allowance (RDAs)?

Answers

Answer:

Explanation:

To indicate daily nutriant requirment

More details:

RDAs apply to vitamins and minerals from food and daily supplements. The purpose of these guidelines is to inform you how much of a specific nutrient your body needs on a daily basis. It is important to meet your daily recommended dietary allowances so that your body gets everything it needs to function

Answer:

to prevent nutrient overdoses

Which term defines a potential source of danger?

accident chain

injury

hazard

safety conscious

Answers

Answer:

Hazard

Explanation:

accident chain

 This is danger, but it is not a potential source of danger.

injury

Again, POTENTIAL. An injury is already being confronted by danger

hazard

A hazard describes a potential source of danger.

safety conscious

This is possibly the opposite, as this is the avoidance of danger.

Answer:

The term that defines a potential source of danger would be hazard. A hazard means a possible danger or risk associated with something. While the other options are relevant to potential danger, the option that best matches the criteria is Option C.

I hope this helps! have a good day-

Imagine you are a counselor treating Jerry, a college student, for depression.
Why is medical record confidentiality so important for this patient?

Answers

Answer:

An employer might decide not to hire him because of his past, even though he's qualified for the job.

The confidentiality of a patient should be maintained because the communication of personal information or records may create personal or professional problems.

What is the concept of confidentiality?

Confidentiality is the principle and practice of keeping sensitive information private unless the owner or custodian of the data gives explicit consent for it to be shared with another party.

What is confidentiality in medical ethics?

Medical confidentiality is a concept of doctors maintaining all the information received during the course of the patient's treatment.

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which describes mental health

Answers

Answer:

a person’s condition with regard to their psychological and emotional well-being.

You don’t have any choices but let me just describe Mental Health. Mental health includes our emotional and social well-being. Having good mental health is great because it gives you confidence and brings your self esteem up.

The % Daily Value can be used to

Make comparisons between products or brands

Make distinctions such as "reduced fat" vs "light"

Help you to make dietary trade-offs

All of the above

Answers

Hi !

The % Daily Value can be used to :

- Make comparisons between products or brands

- Make distinctions such as "reduced fat" vs "light"

- Help you to make dietary trade-offs

The rib cage has 12 pairs of ribs. Which cartilage attaches the front ends of the first seven pairs of ribs to the sternum? What is the name of these seven sets of ribs?
The front ends of the first seven pairs of ribs attach directly to the sternum via____
cartilages. These seven ribs are called____
ribs.

Answers

Answer:

The Thoracic cage is formed by the sternum. Ribs 1-7 are classified as the  true ribs (vertebrosternal ribs). I hope this helped you!

List 5 examples of feelings that are likely to describe giving help​

Answers

Anger

Joy

Fear

Sadness

Competence

Some examples of the feelings that are likely to be used to describe giving help are:

HappinessJoyContentmentSatisfactionFulfilment

Giving help is a situation where a person offers assistance to another person which brings the other person out of a problem.

Some ways a person can offer help include:

Lending a friend moneyHelping a person change his flat tireHelping an elderly person cross a busy road, etc.

Therefore, during, and after giving help, a person typically feels good to help someone out of a difficult situation.

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Which describes how you develop muscular endurance?

A. exerting muscles for short periods of time

B. repeating actions over an extended period of time

C. bending, stretching, and twisting

D. increasing efficiency in the lungs

Answers

Answer:B

Explanation:

Which of the following sentences demonstrates the correct use of capitalizing direction words?

Answers

Answer:

They're arent any choices add some and ill be glaf to help

Explanation:


Sean is trying to decide whether the decision he just made was right or wrong. What is he
doing?
ethical reasoning
problem-solving
creating a plan of action
considering consequences

Answers

Answer: Considering Consequences

Explanation:

If Sean is trying to decide whether the decision he just made was a right decision, or a wrong decision, then he is considering whether the choice he just made is going to get him into trouble or not.

He is considering the possible consequences to the decision he just made. Please mark BRAINLIEST!! :)

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The freshman Spirit Club took a trip to the state fair. There were 59 students and 6 chaperones, and the total admission cost for the group was $508. Student tickets cost $2 more than chaperone tickets. Write and solve an equation to find the cost of a student ticket. Show your work and explain the meaning of the variable. A scientist took a boat trip across the Atlantic. On his voyage, he found a lizard, but was unsure of the species. He used his dichotomous key because he wanted to know where the lizard came from, so he could return it to that general area. What was the population of the united states in 1790? Question 3 Use your Punnett squares to explain why traits that arent present in either parent could show up in the offspring or in future generations of the offspring. The product of two consecutive integers is 420. An equation is written in standard form to solve for the smaller integer by factoring Why did Francis of Assisi call animals his brothers and sisters?and What were the main ways people expressed their devotion to God? according to okun's law if the unemployment rate goes from 6 to 2 what will be the effect on the gdp There are two slices of pizza left. The original pizza had four slices of equal size. What kind of angles are the two slices together? Select all that apply. Modern marvels:world war I tech video guide A bag of pecans costs $3.84. Ifeach bag contains 40 pecans,how much would one pecan cost? When lifting weights, it is important to use what type of movements. A. Smooth B. Quick C. Abrupt D. Angled The excerpt is an example of? put the following in order from oldest to most recently evolved: gymnosperms,angiasperms, seedless vascular plants, algae, and nonvasculr plants Read the following stanza from "Loveliest of Trees, the Cherry Now," by A. E. Housman. And since to look at things in bloomFifty springs are little room, About the woodlands I will goTo see the cherry hung with snow.What tone does the poet create through his word choice in this stanza? A.Daring B.Eager C.Loving D.Unpleasant 3.50 liters of a gas at 727.0 K will occupy how many liters at 153.0 K? Which of the two tests would likely produce more false negatives with a shorter incubation time? Based on the graph, which of the following statements is true? A) Nixon lost important votes to Wallace. B)Humphrey was more popular than Nixon. C)None of the candidates had a clear majority. Look at pie graph. Which statements best describe the first stage of cellular respiration Which of the following would be considered a NEC code violation in regards to the installation of luminaires? A. An outdoor lighting fixture mounted to a tree B. A five-pound, 12-inch diameter light fixture supported by the screw shell of the lampholder C. Florescent lay-in fixtures attached to the framing sections of a suspended ceiling with sheet-metal screws D. Track lighting over a sink, 2 feet from a bathtub What happens to the atoms that make up ethanol as it burns?