the presence of pathogens tends to _______ the evolution of sexual reproduction because _______.

Answer:

Explanation:

Three-day supply of nonperishable food and manual can opener.

According to FEMA's guidelines, a facility should have a minimum of three days' supply of non-perishable food on hand at all times.

This is to ensure that in the event of an emergency or disaster, there is enough food to sustain those in the facility until help arrives or the situation is resolved. However, it is recommended to have up to two weeks' worth of non-perishable food stored in case of prolonged emergencies or situations where help may be delayed.This is a general guideline, and specific requirements may vary depending on the facility's size, location, and the population it serves. Maintaining a sufficient stock of non-perishable food items ensures that individuals can be provided with adequate nutrition even in situations where access to fresh food is temporarily unavailable.

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The polymerase chain reaction (PCR) is a powerful tool used in molecular biology to amplify a specific DNA sequence, resulting in millions or billions of copies of the target DNA sequence. PCR is a highly sensitive and efficient technique that can detect very low levels of DNA in a sample.

PCR involves several steps, including denaturation, annealing, and extension. In the denaturation step, the double-stranded DNA template is heated to separate the two strands. In the annealing step, short DNA primers complementary to the ends of the target sequence are added, allowing the primers to bind to the single-stranded template. In the extension step, a DNA polymerase enzyme adds nucleotides to the 3' end of the primers, synthesizing new DNA strands complementary to the template.

The amplification of the target DNA sequence occurs through multiple cycles of denaturation, annealing, and extension, with each cycle doubling the number of DNA copies. As a result, PCR can produce millions or billions of copies of the target sequence in just a few hours.

PCR has numerous applications in research, clinical diagnostics, and forensic analysis. It is used to detect infectious agents, identify genetic mutations, and study gene expression. PCR is also used in paternity testing and criminal investigations, where it can be used to amplify DNA from small or degraded samples.
Hi! The polymerase chain reaction (PCR) is a powerful molecular biology technique that can be used to produce billions of copies of a specific DNA sequence in just a few hours. By employing repeated cycles of denaturation, annealing, and extension, PCR amplifies the target DNA exponentially, generating large quantities of the desired fragment. This process is highly useful in various applications, such as genetic testing, forensics, and disease diagnostics.

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calories. calories are our source of energy

Without food, we would die because it is the source for our energy nutrients.

Food provides many essential nutrients to our bodies. Protein helps our body to build and repair tissue and other parts of the body. Carbohydrates provide us with energy and fiber to help us stay full. Fats are needed to help us absorb vitamins and minerals and provide us with energy.

Vitamins and minerals help to keep our immune system strong, help our muscles and bones to function properly, and support healthy skin, hair, and nails. Food is an important part of our daily lives and is essential for our health and survival. Eating a variety of foods from all the food groups helps to provide us with the energy and nutrients we need to stay strong and healthy.

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When a physical ailment has no apparent medical cause, doctors may suspect a somatoform disorder.

Somatoform disorders are a group of mental health conditions in which a person experiences physical symptoms that are not explained by a medical condition. These symptoms may include pain, gastrointestinal problems, fatigue, or other physical ailment. Somatoform disorders are thought to be caused by a combination of psychological, social, and cultural factors, and may be related to past experiences of trauma or abuse. Diagnosis of somatoform disorders involves ruling out any underlying medical conditions that may be causing the symptoms. Treatment for somatoform disorders typically involves a combination of psychotherapy and medication to help manage symptoms and address any underlying psychological issues.

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Answer:

Advancing motor skills

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By assessing the following areas, the nurse can determine if the child's development is on track or if any concerns need to be addressed.

The nurse assessing the development of a 7-month-old child should be able to observe the following milestones:
1. Motor skills: The child should be able to sit without support, roll over in both directions, and possibly start to crawl or scoot.
2. Hand-eye coordination: The child should be able to grasp objects using a raking motion and transfer items from one hand to another.
3. Language skills: The child should be able to respond to their name, babble using different sounds, and express happiness or displeasure through vocalizations.
4. Social skills: The child should be able to recognize familiar faces, show affection towards caregivers, and may show stranger anxiety.
5. Cognitive skills: The child should be able to explore their environment, search for hidden objects, and display curiosity.

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Resilience is associated with high levels of emotional well-being, successful coping, and good health.

Resilience refers to an individual's ability to adapt positively in the face of adversity, stress, or trauma. It is a crucial factor that contributes to a person's overall mental and physical health.

Emotional well-being is an essential component of resilience, as it enables individuals to maintain a positive outlook and effectively manage their emotions during challenging situations. This promotes greater life satisfaction and reduces the risk of mental health issues such as anxiety and depression.

Successful coping is another crucial aspect of psychological resilience. It involves employing effective strategies to deal with stressors, such as problem-solving, seeking social support, and practicing self-care. These adaptive coping mechanisms allow individuals to bounce back from setbacks and maintain a sense of control in their lives.

Good health is also linked to psychological resilience, as resilient individuals are more likely to engage in healthy behaviors and avoid harmful habits. This can lead to a stronger immune system, better physical fitness, and a lower risk of chronic diseases. Additionally, a strong mind-body connection promotes faster recovery from illnesses and injuries.

In summary, psychological resilience is a critical factor that contributes to emotional well-being, successful coping, and good health. By fostering resilience, individuals can effectively navigate life's challenges and maintain a high level of overall well-being.

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The waist-to-hip ratio threshold at which a female client's health is considered at risk is 0.85.

The waist-to-hip ratio threshold at which a female client's health is considered at risk varies depending on the organization or guidelines used.

However, as a general guideline, a waist-to-hip ratio of 0.85 or higher is often considered to indicate increased risk for health problems such as cardiovascular disease, diabetes, and certain types of cancer in women.

This means that if a woman's waist measurement is 85% or more of her hip measurement, her health may be at risk due to excess abdominal fat. It's important to note that waist-to-hip ratio is just one of many factors that can contribute to health risk, and healthcare professionals consider multiple factors when assessing a patient's health status.

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The type of protein made up of a chain of amino acids that makes hair both strong and flexible is keratin.

Keratin is a fibrous protein that makes up the outermost layer of skin, nails, and hair in humans and other mammals.

In hair, keratin provides strength and durability, as well as flexibility and elasticity, which are essential for healthy hair growth and appearance.

It helps to maintain the shape and structure of hair strands and prevent breakage and damage from environmental stressors such as heat, chemicals, and styling.

Keratin production in the body is influenced by several factors, including genetics, nutrition, and hormonal changes.

A deficiency in keratin or other essential nutrients can lead to weak and brittle hair, while an excess of keratin can cause hair to become stiff and inflexible.

Proper hair care, including a balanced diet, regular washing and conditioning, and avoiding excessive heat and chemical treatments, can help maintain healthy levels of keratin in the hair.

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If Suzie displays the mental ability typical of a 6-year-old child, her mental age is 6 years old.

Mental age is a concept used in psychology to measure a person's cognitive abilities and development relative to others of their age group. It was originally developed by French psychologist Alfred Binet as a way to identify children who might need extra help in school. Mental age is calculated by comparing a person's performance on standardized intelligence tests to the performance of others in their age group. In this case, Suzie's mental age corresponds to the average cognitive ability of a typical 6-year-old child.

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A simple skin self-exam can reduce deaths from melanoma by as much as 63 percent.

Melanoma is a type of skin cancer that can be deadly if not detected and treated early. Regular skin self-exams can help individuals identify changes in moles or other skin lesions that may be indicative of melanoma or other types of skin cancer. The American Cancer Society recommends performing a skin self-exam once a month, and seeking medical attention promptly if any suspicious changes are noted. Early detection and treatment are key to improving outcomes for individuals with melanoma.

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Anxiety tends to motivate "avoidant" behavior, and anger tends to motivate "aggressive" behavior.

An anxiety often leads individuals to feel overwhelmed and unable to cope with a particular situation, causing them to retreat or avoid it altogether.

On the other hand, anger can be a response to feeling threatened or wronged, leading individuals to act aggressively in an attempt to defend themselves or assert their dominance.

While both anxiety and anger can be powerful motivators, they often result in very different types of behavior.
Anxiety is an emotion characterized by feelings of tension, worry, and physical changes like increased heart rate. It often leads to avoidant behavior, as individuals try to escape or avoid situations that provoke anxiety. On the other hand, anger is an emotion characterized by annoyance, displeasure, or hostility.

Anger often leads to aggressive behavior, as individuals attempt to assert themselves, confront the source of their anger, or defend against perceived threats.
In summary, anxiety and anger have different effects on behavior. Anxiety motivates avoidant behavior, while anger motivates aggressive behavior.

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Actually, auxiliary blood vessels that take over normal coronary blood circulation when blood flow is diminished are called collateral vessels.

These vessels develop gradually over time in response to chronic narrowing or blockage of the main coronary arteries, which can occur as a result of atherosclerosis or other forms of heart disease. Collateral vessels help to maintain blood flow to the heart muscle by diverting blood from adjacent blood vessels, such as the internal mammary artery or the inferior epigastric artery, and creating a network of alternative pathways.

Collateral vessels are not the same thing as coronary thrombosis, which is a sudden blockage of a coronary artery caused by a blood clot. Coronary thrombosis can lead to a heart attack if not treated promptly, as it deprives the heart muscle of oxygen and nutrients. In contrast, collateral vessels are a gradual adaptation to chronic ischemia, or insufficient blood flow, and can help to prevent or mitigate the effects of a heart attack.

However, collateral vessels may not be sufficient to compensate for a large or sudden blockage of a major coronary artery, and may need to be supplemented with medical or surgical interventions such as angioplasty, stenting, or coronary artery bypass grafting.

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Fats are utilized in the body for metabolic processes, storing energy, breaking down vitamins, and they provide 9 calories for every gram. Fats are essential macronutrients that play a crucial role in the functioning of our body.

They are composed of fatty acids and glycerol and are commonly found in foods such as oils, nuts, seeds, and fatty meats. Fats serve as a primary source of energy for the body during prolonged periods of exercise and low-intensity activities. They are also involved in the synthesis of hormones and cell membranes. In addition, fats play a significant role in the absorption of fat-soluble vitamins such as A, D, E, and K.

The body stores excess energy in the form of fats, which can be utilized when there is a shortage of energy supply. It is important to note that the excessive consumption of fats can lead to obesity, heart diseases, and other health issues. Therefore, it is essential to maintain a balanced diet that includes healthy fats in moderation to reap their benefits.

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During his Fencing class, Erick burnt roughly 11.9 Kcal each minute.

To use the formula, we need to know the METs (Metabolic Equivalent of Task) for Fencing. Assume it is 8.0, which is a common value for high-intensity sports.

Plugging in the values:

Kcal/min = 8.0 x 3.5 x 85 / 200 = 11.9

This means that Erick burned approximately 11.9 Kcal per minute during his Fencing class. If he knows the duration of the class, he can multiply this by the number of minutes to get an estimate of the total calories burned.

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The National Children and Youth Fitness Study I and II revealed that a significant percentage of American children and adolescents exhibited poor physical fitness levels and unhealthy lifestyle behaviors.

These studies highlighted the need for improved physical education programs, increased physical activity, and better nutrition in order to enhance the overall health and well-being of young individuals. By addressing these issues, the aim is to reduce the risk of chronic diseases, obesity, and other health problems in the long term while promoting a healthier lifestyle among children and youth.

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In the exchange system, each portion of food on any given list provides about the same amount of: Energy. The correct option is (a).

The exchange system is a meal planning method that groups foods based on their macronutrient content (carbohydrates, proteins, and fats) and assigns each group a certain number of servings per day.

Each portion of food within a specific group provides about the same amount of energy, or calories, as the other portions in that same group. This allows for easier meal planning and helps individuals maintain consistent energy intake throughout the day.

The exchange system does not necessarily ensure equal amounts of vitamins, minerals, or satiety among the different portions of food on a given list.

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Answer:

TRUE

Explanation:

because it is

Answer:

True

Explanation:

It is the most likely answer

People who use problem-focused coping methods confront a stressor head-on by taking direct action.

Problem-focused coping involves strategies aimed at addressing the source of stress or resolving the problem that is causing stress. This type of coping can include problem-solving, seeking social support, and using positive reappraisal to view the stressor in a more positive light.

Problem-focused coping is generally considered to be more effective when the stressor is controllable and the individual has the resources to address it.

However, when the stressor is uncontrollable or the individual lacks the resources to address it, emotion-focused coping, which focuses on managing emotions and reducing the negative impact of stress, may be more appropriate.

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The type of muscle contraction that requires the muscles to activate but have no movement or change in muscle length is called an isometric contraction.

In an isometric contraction, the muscle fibers are activated and generate tension, but the muscle does not shorten or lengthen.  This type of contraction is commonly used in exercises such as planks, wall sits, and static holds, where the muscles are engaged and working against resistance, but there is no visible movement. Isometric contractions can help to build strength and endurance in the muscles.

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Identify and categorize the waste based on its properties.Store the waste in separate labeled containers.The reason why hard water is not suitable for commercial laundry service is that it contains high levels of dissolved minerals.

(a) In a chemistry laboratory, effective waste segregation involves two crucial steps. First, the technician must categorize wastes according to their chemical properties, such as flammable, corrosive, reactive, or toxic. This ensures proper handling and reduces the risk of dangerous reactions. Second, the technician should use clearly labeled and compatible containers for each waste type to avoid cross-contamination and facilitate safe disposal.

(b) Monitoring water hardness is essential for commercial laundry services because hard water contains high levels of minerals, such as calcium and magnesium. These minerals can cause buildup in equipment, reduce detergent effectiveness, and lead to stiff, discolored textiles, impacting laundry quality and increasing operational costs.

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This is an example of a configuration. A configuration refers to the way in which the various components of a system are arranged or organized. In this case, the family is reconfiguring their living space and redistributing household chores to accommodate their adult child who is moving back home.

The family members believe that they can adjust to the changes and make it work. Configuration is an important concept in family systems theory, which emphasizes the interdependence and interconnectedness of family members. Families are seen as dynamic systems that are constantly adapting and changing in response to internal and external factors.

The way in which family members are organized and interact with each other can have a significant impact on their well-being and functioning.

In this situation, the family is reconfiguring their household in a way that supports their adult child who is experiencing a job loss. By working together to redistribute household chores and create a new living space, they are demonstrating their ability to adapt and support each other during challenging times.

This is an example of a healthy family configuration, where family members work together to meet the needs of individual members while maintaining the overall cohesion and stability of the family unit.

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Answer: hunger

Explanation

The experience called infantile amnesia refers to the lack of conscious memory for the first three years of life. During this time, the brain is still developing and forming new neural connections, but the memories formed during this period are not easily accessible to conscious recall later in life.

This may be due to a combination of factors, including the immature state of the brain during infancy and the fact that the memories formed during this time are often of a different nature than those formed later in life. While we may not be able to consciously recall these early experiences, they may still influence our behavior and personality in subtle ways.
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Conscious memory for the first three years of life is a blank, an experience called Infantile Amnesia.

It should be noted that Infantile amnesia is the word used to describe a person's inability to recollect memories of experiences from their early years. Because the brain regions that enable memory are still forming, very few people have memories from before the ages of three to five.

Infantile amnesia, often known as childhood amnesia, is the inability of human adults to recall episodic events that happened during infancy.

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The perinatal period encompasses the time period surrounding childbirth and refers to the time period from the 28th week of pregnancy to 28 days after birth.

The period can be divided into antenatal or prenatal (before birth) and postnatal (after birth) periods. The postnatal period is then further divided into the neonatal period and the post-neonatal period.

The neonatal period is the first 28 days of a newborn's life and is a time of significant adjustment for both the infant and the parents.

During this period, the infant is particularly vulnerable to infections, malnutrition, and other health problems. They may also experience physical and behavioral changes as they adapt to life outside the womb.

The post-neonatal period, on the other hand, refers to the time period from 29 days to the end of the first year of life.

During this time, the infant continues to grow and develop, and parents may face new challenges such as introducing solid foods and managing sleep patterns.

Understanding and addressing the needs of infants during both the neonatal and post-neonatal periods is important for ensuring their health and well-being.

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Answer:

Have someone call 911 and get an AED. If you are the only rescuer, start chest compressions.

A 54-year-old male is found pulseless and apneic on the sofa, and the scene is safe, the first steps you should take involve assessing the situation and initiating appropriate emergency response measures.

Begin by checking the patient's responsiveness by tapping on their shoulder and asking if they are okay. Since the patient is unresponsive, pulseless, and apneic, call for emergency medical services (EMS) immediately, or have someone nearby make the call. As you wait for EMS, initiate cardiopulmonary resuscitation (CPR) to maintain circulation and oxygen supply to vital organs. Perform chest compressions at a rate of 100-120 per minute, followed by rescue breaths using a barrier device if available.

Continue CPR until help arrives or the patient shows signs of life. If an automated external defibrillator (AED) is available, prepare to use it by attaching the pads to the patient's chest and following the prompts. Early initiation of CPR and defibrillation can significantly increase the chances of survival for a patient experiencing sudden cardiac arrest. Always remember to prioritize personal safety and follow established emergency response protocols in these situations. A 54-year-old male is found pulseless and apneic on the sofa, and the scene is safe, the first steps you should take involve assessing the situation and initiating appropriate emergency response measures.

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When an individual has a mindset or perceptions about using a drug, the person is said to have drug-related cognitions.

These are the thoughts, beliefs, attitudes, and expectations that an individual has about drugs and their use.

Drug-related cognitions can include beliefs, perceptions about the benefits or risks of drug use, expectations of the effects of a drug, and attitudes towards drug use.

Positive drug-related cognitions, such as the belief or mindset that a drug will produce positive effects, can increase the likelihood of drug use, while negative drug-related cognitions, such as the belief that a drug is harmful, can decrease the likelihood of drug use.

The influence of drug-related cognitions on drug use is often studied in the field of health psychology, and interventions aimed at modifying drug-related cognitions can be used to prevent or treat drug addiction.

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A person who is legally blind sees at 20 feet what a person with normal vision sees at 200 feet.

This means that a person with normal vision is able to see objects from a distance ten times farther than the legally blind individual. Typically, the legally blind person may be able to discern light, color and motion, but details of the object or person are not clear.

This means that for someone who is legally blind, the world looks very different than for someone with normal vision. They may need to rely on more tactile senses, such as touch and sound, in order to gain an understanding of their environment.

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The following make it unlikely for 5-8 year olds to perform push-ups and sit-ups include physical development, muscle strength, and coordination.

At this age, children are still developing their muscular and skeletal systems, making it difficult for them to perform exercises that require significant upper body strength, such as push-ups. Additionally, they may lack the core strength necessary for sit-ups, as this muscle group is still developing as well. Coordination and motor skills are also still developing in children aged 5-8, they may struggle with the proper technique and body positioning needed for push-ups and sit-ups, leading to incorrect execution and possible injury.

Moreover, younger children often have shorter attention spans, making it challenging for them to focus on performing these exercises with proper form and repetition. In summary, the factors that make it unlikely for 5-8 year olds to perform push-ups and sit-ups are their developing physical strength, coordination, and attention spans. It is important to introduce age-appropriate exercises to help them gradually build strength and develop their motor skills safely. The following make it unlikely for 5-8 year olds to perform push-ups and sit-ups include physical development, muscle strength, and coordination.

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Answer:

C

Explanation:

Anemia is when you don't have enough healthy red blood cells. Red blood cells contain hemoglobin.

The answer to this question is C. Anemia is a condition that occurs when there is a lack of hemoglobin in the body. Hemoglobin is a protein found in red blood cells that is responsible for carrying oxygen from the lungs to the rest of the body. When there is a shortage of hemoglobin, the body does not get enough oxygen, which can lead to fatigue, weakness, and shortness of breath.

Anemia can be caused by a variety of factors, including a lack of iron or other essential nutrients, chronic diseases, or genetic disorders. Treatment for anemia depends on the underlying cause but may include dietary changes, iron supplements, or medication. If left untreated, anemia can lead to more serious health problems, so it is important to consult a healthcare provider if you suspect you may be anemic.

There are multiple types of anemia, including iron-deficiency anemia, vitamin-deficiency anemia, and hemolytic anemia, each with its own specific cause. It's important to diagnose and treat anemia appropriately, as it can have a significant impact on a person's quality of life and overall health.

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Answer:

The closest answer choice is A. 65%-80%.

Explanation:

To find the target heart rate range, we can use the Karvonen formula:

Target Heart Rate = ((max HR − resting HR) × %Intensity) + resting HR

where max HR = 220 - age

Let's plug in the given values:

max HR = 220 - 22 = 198

resting HR = 68

We need to determine the %Intensity. According to ACSM guidelines, the target heart rate range for moderate intensity exercise is 64%-76% of maximum heart rate.

64% of max HR = 0.64 x 198 = 126.72

76% of max HR = 0.76 x 198 = 150.48

Using the Karvonen formula, we get:

Target Heart Rate = ((198 - 68) x 0.64) + 68 = 144.48

Target Heart Rate = ((198 - 68) x 0.76) + 68 = 158.48

Therefore, the target heart rate range for a 22 year old in good cardiovascular fitness that participates in regular to moderate activities with a resting of heart rate of 68 is approximately 144-158 beats per minute.

The closest answer choice is A. 65%-80%.

Answer to the question is B. 50%-85%. This means that the target heart rate range for a 22 year old in good cardiovascular fitness who participates in regular to moderate activities with a resting heart rate of 68 is between 50% and 85% of their maximum heart rate.

An explanation of this answer is that the target heart rate range is determined based on a percentage of the individual's maximum heart rate. The maximum heart rate is estimated by subtracting the person's age from 220. In this case, the maximum heart rate would be 198 (220-22). The target heart rate range for moderate intensity exercise is typically between 50% and 70% of the maximum heart rate, while the range for vigorous intensity exercise is typically between 70% and 85% of the maximum heart rate. Therefore, for a 22 year old with a resting heart rate of 68, the target heart rate range for regular to moderate activities would be between 99 and 168 beats per minute (50%-85% of 198).

A detailed explanation would include additional information about how to monitor and adjust your heart rate during exercise to ensure you are within your target range. This may involve using a heart rate monitor or manually taking your pulse during exercise. It is important to note that individual factors such as medication, medical conditions, and fitness level can affect target heart rate range, so it is always best to consult with a healthcare provider or certified personal trainer to determine the most appropriate range for your specific needs.

To calculate the target heart rate range for a 22-year-old in good cardiovascular fitness with a resting heart rate of 68, you need to first find their maximum heart rate and then apply the Karvonen formula.

Step 1: Determine the maximum heart rate
220 - Age = Maximum heart rate
220 - 22 = 198 bpm (beats per minute)

Step 2: Apply the Karvonen formula
(Target heart rate = [(Max heart rate - Resting heart rate) x Intensity] + Resting heart rate)

For the lower end of the range (50% intensity):
[(198 - 68) x 0.50] + 68 = 133 bpm

For the higher end of the range (85% intensity):
[(198 - 68) x 0.85] + 68 = 179 bpm

Therefore, the target heart rate range for this individual is 133 bpm to 179 bpm, which falls within the 50%-85% range.

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