How do pairs of skeletal muscles work together?
a. both muscles contract at the same time
b. while one muscle in the pair contracts, the other relaxes
C. both muscles extend at the same time
d. both muscles do nothing

Answers

Answer 1

Answer:

B.  While one muscle in the pair contracts, the other relaxes

Explanation:

If we consider by elimination:

A -- If both muscles contract at the same time, nothing would happen except energy being depleted.  Think of when you hold your arm out straight and try to flex those muscles.  The arm doesn't move.

C -- Both muscles extend at the same time, this is similar to A.

D -- If both muscles do nothing, then nothing happens!

Thus B is the answer, since every force requires an opposing force, so when one muscle contracts, the other relaxes to allow the movement to take place.


Related Questions

Which term means the paralysis of all four extremities.

Answers

Answer:

Quadriplegic

paralysis of all four limbs, both arms, and both legs

The AIDS/HIV health crisis in Botswana is __________. A. Similar to the AIDS/HIV crises in Belgium B. Less severe than the AIDS/HIV crisis in Belgium C. More severe than the AIDS/HIV crisis in Belgium D. Resolved, unlike the the AIDS/HIV crisis in Belgium.

Answers

Answer:

The AIDS/HIV health crisis in Botswana is more severe than the AIDS/HIV crisis in Belgium

Explanation:

Ryan, who lives in Fairbanks, Alaska, decided in March that he would like to try and plant a variety of wildflowers in his greenhouse then transplant it outside. Summer in Fairbanks is very unique because the Sun never sets. Each week, Ryan checks on his flowers. They are growing, but summer is coming to an end, and the flowers have not bloomed. What might be the reason?

Answers

he didn't water the flowering plants

A patient's parents have atherosclerosis. How does her family history affect her risk of developing abnormal blood pressure? It increases her risk of developing high blood pressure. It increases her risk of developing low blood pressure. It decreases her risk of developing high blood pressure. It decreases her risk of developing low blood pressure.

Answers

Her family history affect her risk of developing abnormal blood pressure by increasing her risk of developing high blood pressure.

What is Atherosclerosis?

This is the build up of substances such as cholesterol on the arterial walls thereby blocking blood flow.

This condition decreases blood flow thereby increasing the pressure needed tpo pump blood. In cases where there is a family history of abnormal blood pressure by increasing her risk of having it.

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Answer:

A: It increases her risk of developing high blood pressure.

Explanation:

Why is it necessary to know the atmospheric pressure in order to calibrate your thermometer.

Answers

It is necessary to calibrate a thermometer to assure accurate readings, as the accuracy of a thermometer can drift over time. Thermometers can drift over time for various reasons. One reason a thermometer can drift is mechanical shock.

Knowing the atmospheric pressure is essential for calibrating a thermometer because atmospheric pressure can affect the boiling and freezing points of liquids, which are key reference points used in temperature calibration.

The temperature at which a liquid's vapour pressure equals that of the surrounding air is known as its boiling point.

At sea level, where atmospheric pressure is around 1 atmosphere (atm), water boils at 100°C under normal circumstances.

The boiling point of water will alter when altitude or air pressure changes.

Freezing Point: The temperature at which a liquid transitions from a liquid to a solid state is known as the freezing point.

Atmospheric pressure may influence both the freezing point and the boiling point.

For instance, under normal air pressure, water freezes at 0°C.The freezing point of water drops as pressure increases.

Thus, atmospheric pressure may impact the boiling and freezing temperatures of liquids, which are important reference points used in temperature calibration.

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A doctor prescribes a blood thinner to a patient with high blood pressure. What impact will this medication have on blood flow and viscosity?.

Answers

There is a high concentration of blood cells and solutes
The blood is more thick and the heart has to pump harder
Blood pressure goes up
(All are correct)

What are two examples of personal biases in a personality test

Answers

the way you feel and what u think about yourself

Explanation:

i think everyone has personal bias

Answer:

Ethnic bias and gender bias are two significant yet controversial examples of cultural test bias in personality assessment.

Explanation:

First we must find out the meaning of personal bias, a personal bias or prejudice for or against a party or representative. Actual bias means prejudice or prejudgment of the parties or the case to such a degree that the decision maker is incapable of being persuaded by the facts to vote another way.

Should physician disciplinary action be within the realm of public law, or should it be a private law matter between the physician and a wronged party? Defend your decision.

Answers

Private law matter. Unless it has resulted in major injury or death it should remain private between the defendant and plaintiff.

The decision of whether physician disciplinary action should be within the realm of public law or a private law matter depends on striking a balance between protecting the public interest

What is public law?

Finding a balance between defending the public interest, upholding accountability, and safeguarding individual rights and due process will determine whether medical disciplinary action belongs in the public law or private law domain.

Many nations have a hybrid approach, where some aspects of physician disciplinary procedures are handled through private law (e.g., professional societies and medical boards) and other aspects are handled by public law (e.g., licensing and regulatory authorities). Patient safety should come first, and doctors who are facing disciplinary action should be treated fairly.

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How do you know if your tonsils need to be removed?.

Answers

Answer:

Difficulty or painful swallowing.Fever.Enlarged and tender glands in the neck.Bad breath.Visibly red and swollen tonsils.White or yellow patches on the tonsils.A scratchy or “lost” voice.A stiff neck.

Explanation:

Difficulty or painful swallowing.
Fever.
Enlarged and tender glands in the neck.
Bad breath.
Visibly red and swollen tonsils.
White or yellow patches on the tonsils.
A scratchy or “lost” voice.
A stiff neck.

why do schools give milk instead of water?​

Answers

Answer:

It gives the students nutrition and protein.

The reason why schools give milk instead of water is because, milk has more nutritions than water does and the children need it! Hope it helps!

Nutritional scientists conduct experiments on many aspects of nutrition.
True
False

Answers

Answer:

Nutritional scientists conduct experiments on many aspects of nutrition. True or false. It is true

Explanation:

What is the difference between AP and EP and why is it important?

Answers

EP is edible portion, the portion that will be served after it is cooked. AP is as purchased, so the food in its raw state, before it is cooked or put together

Ivan is trying to determine his fitness level by testing his baseline measurements using the American College of Sports Medicine's five
components of fitness. What is NOT something Ivan needs to include in his baseline measurements if he is using only the ACSM's components?
O A. body weight
OB.
cardiovascular endurance
O c.
muscular strength
OD
flexibility

Answers

the answer is B i’m pretty sure

Ivan needs to include Cardiovascular endurance in his baseline measurements if he is using only the ACSM's components.

What is the cardiovascular endurance?

Cardiovascular endurance is a measure of how well you can do exercises that involve your whole body at moderate to high intensity for an extended time.

What is the component of cardiovascular endurance?

Cardiovascular endurance is the ability of the heart and lungs to work together to provide the needed oxygen and fuel to the body during sustained workloads.

Hence ,B is correct option

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hi is tomato a veggie or an fruit

Answers

Answer:

fruit.

Explanation:

Robert is recently homeless and is suffering from mental illness. As a result, he feels increasingly socially isolated. Although he used to be physically healthy, he is now sick quite often. Which aspect of Robert's health is directly affected by his lack of contact with others?

Answers

The aspect of Robert's health that is directly affected by his lack of contact with others is physical. It is fundamental to achieve overall health.

Health components and physical health

Health can be defined as an overall state of wellness, which is associated with physical, mental, and emotional health.

Mental health can be defined as cognitive functions associated with heath.

Emotional health refers to the control of feelings and behaviors.

Physical health is a health component associated with the absence state of physical injuries.

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Not all bacteria are harmful. Bacteria
can be good and help us in different
ways. An example of bacteria being
helpful is
A. digesting food
B. breathing oxygen
C. forming blood clots

Answers

Explanation:

A. digesting food

.......

Answer:

the answer is A. Digesting food

Explanation:

If someone faints, you should do all of the following except __________. Question 8 options: tighten the person's clothing. Leave the person lying down and check the airway to make sure it is clear. Call for help if he or she does not regain consciousness in about a minute. Raise the person's legs above the level of his or her head.

Answers

Answer:

If someone else faints

Position the person on his or her back. If there are no injuries and the person is breathing, raise the person's legs above heart level — about 12 inches (30 centimeters) — if possible. Loosen belts, collars or other constrictive clothing.

To reduce the chance of fainting again, don't get the person up too quickly. If the person doesn't regain consciousness within one minute, call 911 or your local emergency number.

Check for breathing. If the person isn't breathing, begin CPR. Call 911 or your local emergency number. Continue CPR until help arrives or the person begins to breathe.

If the person was injured in a fall associated with a faint, treat bumps, bruises or cuts appropriately. Control bleeding with direct pressure.

Explanation:

What type of things might an overweight person consider when beginning to exercise?

Avoid high impact exercises.
Exercise for less than ten minutes at a time.
Exercise at moderate intensity.
Exercise more than once a day.
Exercise below your target heart rate.
Slowly increase the duration.

Answers

Answer:

avoid high impact exercise

Explain what factors determine the treatment plan an oncologist chooses for a particular patient.

Answers

The seven factors were their age at the time of decision, having a partner, having children, inability to work due to side-effects of the treatment, the nature of the side-effects, disease-related life expectancy and baseline QOL.

As a consumer, you should base your choices on advertisements. True or false?

Answers

Answer:

Which is the best estimate for StartFraction (8.9 times 10 Superscript 8 Baseline) Over (3.3 times 10 Superscript 4 Baseline) EndFraction written in scientific notation?

3 times 10 Superscript 2

6 times 10 Superscript 2

3 times 10 Superscript 4

6 times 10 Superscript 4Explanation:

False

Hopefully this helped- have a good day)

You can tell a claim about nutrition is suspect if it bears the following characteristics: ________________

a. the evidence used to support
b. the claim is from a university laboratory.
c. it appears in a scientific journal which is peer-reviewed.
d. it is being made by an advertiser who is paid to make claims.
e. it is being made by a public health nutritionist.

Answers

Answer: It is made by an advertiser who is paid to make claims.

If they are being paid, it is likely that their claims will be biased.

How to know if you are pregnant

Answers

Answer:

There are differet ways that you can find this out

Take a test

Symptoms

thats mainly all theres not much you can do without getting a test

The protein that regulates muscle contraction by controlling the availability of active sites on actin is called.

Answers

Protein=Tropomyosin

What is the best first aid procedure for a cut or scrape? Question 5 options: Leave the cut alone to heal on its own. Put hydrogen peroxide on the cut. Wash the cut and put a bandage on it. Use a rough washcloth to remove dirt.

Answers

Answer: Wash the cut and put a bandage on it.

Explanation:

Leaving a cut to heal on its own could cause an infection if there is dirt in the cut

Hydrogen peroxide can actually harm the tissue and slow healing

Using a rough washcloth could hurt!

The best way to take care of a cut/scrape is to wash the cut (removes bacteria and dirt) then put a clean bandage on it.

Hope this helps!

The best first aid procedure for a cut or scrape is to wash the cut and put a bandage on it.

The correct option is C.

What is first aid?

First aid is the primary and initial treatment to reduce the injury to get worse.

It is an immediate treatment that is given to prevent future problems.

In a cut or scrape, the best to do is wash the wound first, then put a bandage to prevent blood loss.

Thus, the correct option is C, Wash the cut and put a bandage on it.

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What is the name of the people officiating the game?.

Answers

These officials are commonly referred to as "referees" but each has a title based on position and responsibilities during the game: referee, head linesman ("down judge" in the NFL), line judge, umpire, back judge, side judge, and field judge.

lick this link to view O*NET’s Wages and Employment section for Emergency Medical Technicians. According to O*NET, what is the projected growth for this career over the next ten years? Please answer

Answers

The projected growth for Emergency Medical Technicians in the next ten years is Faster than average (10% to 15%)

What is O*NET?

O*NET OnLine has detailed descriptions of the world of work for use by jobseekers, workforce development and HR professionals, students, researchers, and more!

With this information, we can conclude that an Emergency Medical Technician can have a 10% to 15% appreciation in 10 years.

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How do I get thin legs fast quick..
its almost summer and I need a workout routine. I love everything about myself except my legs. pls help

Answers

You need to do exercise.
Just love your legs man. You’re perfect, but I recommend burpee‘s they really help with shaping your legs. (Also thanks for the points kiss kiss)

safety aid is more important than first aid.why?​

Answers

Answer: Because

Safety can be defined as the control of recognized hazards to achieve an acceptable level of risk. First aid is the first and foremost treatment given to the victim of sudden accident or injury.

How is hiv contracted, and what are the treatment options?.

Answers

Answer:

HIV can be transmitted only in certain body fluids from a person who has HIV. These fluids are blood, semen, pre-seminal fluids, rectal fluids, vaginal fluids, and breast milk. The treatment for HIV is called antiretroviral therapy (ART). ART involves taking a combination of HIV medicines (called an HIV treatment regimen) every day.

Answer:

C. The HIV is spread in unprotected or through contact with an infected blood. Although it cannot be cured but still the early treatment can reduce the long term consequences.

Explanation:

How to not depression?

Answers

Get exercise, sunlight, talk to a doctor

Answer:

Try not to blame urself

Explanation:

get exercise,think positive,try your best,believe in yourself

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