Why does the heart automatically adjust the flow of blood to match activity levels?
A.
Extreme activity damages blood cells and the body needs replacements.
B.
The heart requires more oxygen when exercising.
C.
It reduces the level of oxygen in the blood.
D.
Organs and muscles require more blood under stress.

Answers

Answer 1

Answer:

D. Organs and muscles require more blood under stress.

Explanation:

Because muscular contractions can have a protracted metabolic expenditure because it has to be adjusted to the demands of the contracting muscles.

Answer 2

Answer:

d

Explanation:


Related Questions

Dips and bicep curls work which muscles?

quadriceps and hamstrings
pectoralis and deltoids
biceps and triceps

Answers

Biceps and tricepssssssssssss

What is the name of the state you are in ,when you are maintaining a stable internal environment despite changing external conditions ?

Homeostasis
Temperature
Imbalance
Resting

Answers

Homeostasis is the correct

Answer:

A) is the correct answer!

Explanation:

Have a great day!

Cardiovascular exercise can be a great outlet for which of the following?
O A.
Anger
B.
Stress
• C.
Frustration
) D.
All of the above

Answers

Answer:

all of the above

Explanation:

Need help ASAP

Where can I get an inhaler for my asthma?
I can't find them anywhere, and I need to get one :(

pls help. Will mark brainliest

Answers

Answer:

Doctors proscribe one. If you are going into an asthma attack and you do not have anything for it go the the ER.

Explanation:

Becky heard about the new cytomimic technology. She is excited and wants to try that out, but she wants to research it first. Which topic should she research?

A.

DNA repair

B.

bioelectricity

C.

Brazilian keratin treatment

D.

dermabrasion

E.

nail extension

Answers

Answer:

B

Explanation:

Because according to Dr Ying Sun, "Cytomimic Technology mimics the body's natural bioelectricity to help rejuvenate, repair and renew skin".

Which of the following is NOT is heart-healthy menu choice? low-fat deli sandwiches on wheat bread whole grain bagel with turkey whole wheat tortilla breakfast croissant

Answers

Answer:

The tortilla brekfast crossiant

Explanation:

Renee is a phlebotomist who takes blood samples from patients for testing in the lab.
Renee only needs small amounts of blood to get her samples. Which would she want to
puncture for the procedure, a vein or an artery? Explain the difference between the two and
the reason for your choice.

Answers

Answer:

a vein

Explanation:

she would need to look for a vein and tie the upper part and puncture

____ schools usually have a religious affiliation or an elite history and require parents to pay tuition for their children to attend.

A. Charter
B. Magnet
C. Private
D. Public

Answers

Answer:

C

Explanation:

78% of the private schools in the United States are affiliated with religion

Whats the difference between vitamin d and vitamin d3.

Answers

Answer:

There are two possible forms of vitamin D in the human body: vitamin D2 and vitamin D3. Both D2 and D3 are simply called “vitamin D,” so there's no meaningful difference between vitamin D3 and just vitamin D.

Which of the following should you NOT do after spraining your wrist while playing sports?
A.
apply an ice pack to the injury
B.
elevate the injury at or above heart-level
C.
wrap your wrist in a bandage
D.
work through the injury by continuing to play



Please select the best answer from the choices provided.


A
B
C
D

Answers

Answer:

D. Work through the injury by continuing to play.

Explanation:

Answer:

D

Explanation:

Even though i'd probably do that Lol

Doctors are interested in seeing if lifting weights to alleviate back pain is effective. Twenty five volunteers are asked to rank their level of pain on a scale from one to ten. For the next two months, they then exercise for 2 months with a physical therapist. The volunteers focus on different weight lifting exercises that strengthen the back. Twenty five volunteers are again asked to rank their level of pain on a scale from one to ten. Was the amount of pain less after completing the exercises?.

Answers

Some details are missing in this question. To answer this question the data generated from the intervention would be required. However, even if the data shows improvements in pain following a weight lifting intervention for 2 months there are an unlimited number of confounding factors that may contribute to less pain in 2 months. For instance, is the person taking pain medication? Are other lifestyle factors being considered? Does the person have a strenuous job that may worsen the pain? Is the person actively seeking other therapy like massage ?

It’s difficult to even compare across the subjects because their back pain can differ and can stem from different causes. Some might find that the back pain gets worse with exercise, others not. Lastly, people have different levels of pain tolerance, I may rank my pain level high where as you may rank yours low. Is my pain worse than yours or can you tolerate pain better than me?

All in all, without any additional details your question cannot be answered. Pain ranking is a subjective tool that renders itself not viable. If you can objectively assess pain then we can come to some conclusions.

Not the answer you wanted to hear, but the answer you needed:)

Which are functions of the bones?

Protects Internal Organs
Stores and Releases Minerals
Supports the body
Stores and Releases Fat
All of the above

Answers

The answer:
All of the above

Which Is the BEST general description of a day in the life of a specialist?
A. seeing patients with a wide variety of simple, treatable problems
B. not treating patients but determining which specialists to refer them to
C. A combination of seelng patients, maintaining records, and analyzing test results
D. Spending half the day In a hospital treating patients and the other In a lab dolng research

Answers

Answer:

a combination of seeing patients, maintaining records, and analyzing test results

Explanation:

i just answered it and got it right

How many milligrams of tylenol can i take while pregnant?.

Answers

Answer: two extra-strength tablets, 500 milligrams each, every four hours, up to four times a day.

Explanation:

My health career example?

Answers

Answer:

There is a bunch such as; Nursing, Doctor, Surgen, Threaphy, Physical Threaphy, School Nurse, Substance Abuse Conceling and much more. (Im taking classes for becoming a phystraic nurse.)

Explanation:

Hope This Helps

Have A Great Day

~Zero~

ill mark brainliest
5. Situation: you’ve had a friend online for years now and you’ve decided your gonna meet up with them . (2 pts)

a. What is the risk factor of this situation? (1 pt)

b. In a complete sentence, describe a possible outcome to this situation?
(1 pt)
c. In a complete paragraph, describe how would you respond to avoid danger? (1 pt)

Answers

Answer a: There is a major risk of the person not being who they portray themselves to be.
Answer b: You met up with this person in a non-public place and he/she kidnapped you or worse.
Answer c: I would ask to meet in a public place with lots of people around, and possible even bring a friend with me to be safe. I would not go to their house or have them come to mine as a safety precaution.

Answer:

You can get tricked to exposing yourself and get robbed.

In this situation of meeting your old online friend you may get tricked or get robbed

In this situation I will stop talking to them if they are making you unconfortable you have the right to ditch someone and I will do happy stuff that I usually do to make forget about (that specific person).

Which is one cause of bullying?

being a victim of physical abuse
being well-connected to positive peers
practicing tolerance of others
having access to electronic technology

Answers

Answer:

A: Being a victim of physical abuse

Explanation:

B: (False) well if you are well-connected to positive peers you wouldn't be able to get bullied in the first place since you are not in a negative environment

C: (False) This wouldn't make sense, in general, it's like your allowing someone to bully you

D: (False) I mean you could possibly get cyberbullied but then again that's a different type of bullying so

Answer: (A) being a victim of physical abuse.

Explanation: EDGE 2022

Which situation describes positive peer pressure?

Answers

A situation that describes a positive peer pressure is peers who are committed to doing well in school or at sport can influence others to be more goal orientated

Which of the following is an example of foods working synergistically?
O Cookies and milk becauso they go well together
O Foods with vitamin C helping the body absorb iron
O Eating leafy green vegetables with other kinds to create variety
O Eating food high in omoga-3 acids to prevent joint inflammation

Answers

Answer:

Eating leafy green vegetables with other kinds to create variety

Explanation:

I said the 3rd o because I know that tomatoes and broccoli are a synergetic combination.

Cookies with milk because they taste good

Which exercise best helps to strengthen your pectoralis? *

squats
lateral lunge
bench press
shoulder press

Answers

Bench press and shoulder press

Which statement best explains how the environment plays a role in preventing chronic disease?
O Heart related illnesses, caused by higher levels of humidity, can be reduced by draining standing water from low lying areas.
Polio and similar conditions can be reduced in frequency by addressing concerns about polluted air caused by human activity.
Reducing the number of trees in an area will lead to a decrease in the amount of pollen, reducing cases of asthma.
Access to clean water, which carries fewer carcinogens and other harmful chemicals, will reduce the risk of developing cancer.

Answers

Answer:

Access to clean water, which carries fewer carcinogens and other harmful chemicals, will reduce the risk of developing cancer.

Explanation:

I took the test and this was the answer. (k12)

As of 2020, who is the longest serving female in the california state prison system?.

Answers

Answer:

Confined to a California prison since 1971, former Manson family member and convicted murderer Patricia Krenwinkel is now the longest-serving female inmate in the state's correctional system. On Thursday, the 69-year-old will have a chance at freedom when a review board considers whether to recommend her for parole.

Explanation:

Former Manson family member and convicted murderer Patricia Krenwinkel is now the longest-serving female inmate in the state's correctional system.

fluid milk that has 2 percent milkfat

Answers

This is what me and my step mom gets

Hope this helps :))

Sophia's doctor suspects she's been using marijuana for a long period of time. Which set of symptoms best describes what Sophia's doctor observes?

Sophia exhibits impaired memory and learning.

O Sophia is hoarse and malnourished with nosebleeds.

O Sophia complains of itching, nausea, and a racing heart.

O Sophia has severe dental problems, anxiety, and a sleep disorder.

Answers

Answer:

I think the answer is Sophia has severe dental problems, anxiety, and a sleep disorder. :)

Have an amazing day!!

Please rate and mark brainliest!!

How to lower blood sugar quickly emergency at home?.

Answers

Answer:

Exersize.

Explanation:

Exersizing is an efective way to lower blood sugar for around 24 hours. This is because it makes your body more sensitive to insulin.

(i hope this helped.)

Females are unable to maintain a high level of cardiorespiratory fitness. please select the best answer from the choices provided. t f

Answers

False



The body of a man can have higher cardiorespiratory fitness levels than the body of a female but, females can have a high cardiorespiratory fitness level as well as a male if the female maintains it by exercising and having a healthy diet.

How does law enforcement view underage drinking when it occurs at home with parents present who grant permission?


as deserving of a heavier sentence

as deserving of a lighter sentence

as being acceptable by law

as being illegal

Answers

they view it as being illegal

Individuals suffering from dementia may act inappropriately and may __________. become easily distracted develop an inability to retain new information develop symptoms that fluctuate throughout the day suddenly have difficulty reading or writing

Answers

Answer:

Develop an inability to retain new information.

Hope this helps

Answer:

B.) develop an inability to retain new information

Explanation:

Just did the pratice

State any two symptoms of ASD or PTSD

Answers

Answer:

delayed language skills and hyperactive or implusive behavior

Explanation:

Answer: one of the most common symptoms of Autism Spectrum Disorder are stims or ticks for example: I have autism and one of the most common stims I do is rocking back and forth or playing with my hands or hair. Another one is avoiding eye contact or delayed communication skills and manners. I've had this problem for a while and still do occasionally although it's not as prevalence anymore.

A fallacy is a __________. a. type of medical breakthrough that is commonly accepted after fda testing b. false or mistaken idea often based on illogical or invalid reasoning and facts c. pill that does not contain any medicine, used to conduct double-blind studies d. medical professional who has been trained to investigate all types of medical fraud please select the best answer from the choices provided. a b c d

Answers

The answer is choice B

Answer:

B

Explanation:

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