For older adults and previously inactive individuals, exercise intensity should fall closer to what percentage of the maximal heart rate?

Answers

Answer 1
The answer is 50%.

The-related number of thumps every moment of the heart when working at its greatest that is generally evaluated as 220 short one's age achieved 90 percent of his most extreme heart rate when tried on a treadmill. 
It is prescribed that you practice inside 55 to 85 percent of your most extreme heart rate for no less than 20 to 30 minutes to get the best outcomes from oxygen consuming activity. The MHR (generally ascertained as 220 less your age) is the maximum furthest reaches of what your cardiovascular framework can deal with amid physical movement.

Related Questions

A heat wave that causes an organism to move to a cooler climate is an example of a(n)
a. adaptation
b. extinction
c. speciation
d. stimulus

Answers

It is d. If it was adaptation, the organism would have stayed in order to adapt. The species moved in order to not go extinct. It can not be speciation, because a new species was not made. It is stimulus. It experienced too much heat, so it left.

Answer: stimulus

Explanation: I am a university graduate.

Why is it often difficult to distinguish between the functions of the nervous and endocrine systems?

Answers

It is regularly hard to separate the elements of the apprehensive and endocrine system since it is hard to separate between the anxious and endocrine systems since a few neurons emit hormones and some endocrine organs react to neural signs.


The endocrine system is not a piece of the nervous system, but rather it is as yet basic to correspondence all through the body. This system is made out of organs, which emit concoction ambassadors known as hormones.

What technique could be used to make the organelle indicated by letter x more visible?

Answers

The technique that can be used is called STAINING. Staining is a method that is generally used when observing cell organelles under the microscope. Observing some cell organelles under the microscope can be very difficult at times, the visibility of such organelles can be increased by staining them with appropriate stains depending on the organelle. Examples of stains that can be used are methylene blue and iodine.

Red blood cells that are bathed in blood neither shrink nor swell and burst. If the concentration of blood os 0.5 M, what could be the concentration of cytoplasm of RBCs?

Answers

If the concentration of blood is 0.5 M, and red blood cells that are bathed in blood neither shrink nor swell and burst, the concentration of cytoplasm of RBCs is 0.5m. An isotonic solution relates to two solutions that have the same water concentration on both sides of a membrane. So, cells in isotonic solution have the same water concentration as the isotonic solution and thus they will neither shrink nor swell and burst. If the concentration of blood is 0.5 M, the concentration of RBC cytoplasm must be the same which is 0.5 M.

Type of allele with the ability to hide or mask the expression of a recessive allele.

Answers

it it dominant allele, as when the dominant allele is present, its traits are shown

What is not a characteristic of a multiparty system?

Answers

The characteristic which is not in the multi-party system is dictatorship.

A multi-party system is a system of government related to politics in which there are more than two parties have a chance to rule and get real political power. There is an option for parties either they want to rule on their own or they become a part of federation government.

Lymphatic ________ are formed from the union of the largest collecting lymphatic vessels.

Answers

The answer is : Trunks

Inhalation and exhalation move air into and out of the lungs. what happens when you inhale and exhale? drag the labels to the correct locations on the flowchart to identify the steps of inhalation and exhalation.

Answers

When you inhale or breathe in air, your diaphragm will contract or tighten and it will move downward. This will result to an increase in space in your chest cavity where your lungs will expand. The intercostal muscles located between your ribs will also help in the enlargement of the chest cavity. When your lungs expand, air will flow through your nose or mouth. The air will travel through your wind pipe and into your lungs. It will pass through your bronchial tubes and it will eventually reach and enters the alveoli or the air sacs. 

When you exhale or breathe out on the other hand, your diaphragm will relax and it will move upward into your chest cavity. The intercostal muscles will likewise relax resulting to the reduction of space in the chest cavity. When the space in the chest cavity gets smaller, air that is carrying carbon dioxide will be forced out of your lungs and windpipe and it will eventually go out of your nose or mouth.

Why is evolution considered a theory and not a hypothesis?

Answers

a hypothesis is an educated guess where a theory is a confirmed hypothesis. It is no longer a guess it is now a fact. We have hard evidence and studies that state evolution is real.
Evolution began as a hypothesis when it was first researched by Charles Darwin in 1831. He wanted to show that organisms adapted over time due to a variety of factors.

It is considered a theory because it is a general idea, supported by years of research, data, statistics, etc. that explains a general concept; as well as lay out a general rule that can explain most questions pertaining to the subject.

Hope this helps, and I'm the brainiest! :)

The most important and most effective way to control pests in a food establishment is to _______.

Answers

The most important and most effective way to control pests in a food establishment is to implement Integrated Pest Management (IPM). This is an ongoing cycle of inspecting, identifying, analyzing, and treating pests in the establishment.

FURTHER EXPLANATION

There are several steps in implementing the IPM.

1. The first step is to look at the entire establishment and identify areas where pests come through.

2. Once the areas where pests may enter and exit the establishment are identified, an action plan to ensure that pests are unable to pass through are put in place such as covering holes or entry points. Keeping the areas clean and sanitized and observing proper waste disposal are also key practices to help prevent infestation.

3. The kind of pests should also be identified and monitored to be able make an appropriate treatment plan based on their behavior. The correct selection of pest control treatment is necessary to ensure that the treatment is specific to the kind of pests that are found on the site. Also, an analysis of why these pests are found on site must be conducted so that further preventive measures may be put in place.

4. When planning and implementing pest control measures start with non-chemical methods first like baiting and trapping pests. Only when these methods fail should chemical control methods be used and only with doses specifically needed for the identified and targeted pests.

5. Proper documentation of the pest control cycle must be prepared for a smooth implementation of the continuous integrated pest management.

LEARN MOREfood safety https://brainly.com/question/4254210good hygiene practices https://brainly.com/question/8657784sanitation https://brainly.com/question/3848062

Keywords: sanitation, pest control

The most effective and most important way to control pests in a food establishment is to implement an integrated pest management program.

Further Explanation:

Humans, pests, and rodents prefer to live in a warm environment in cold or wintery days. That’s why pests find their way inside the building and home if they smell any food. Pests like cockroaches, flies, and rodents may cause harmful disease and people get sick frequently. To prevent food from getting contaminated by pests, the manufactures should apply for an integrated pest management program. It mainly consists of different precautionary phrases that are used to prevent pests out of the facilities and to eradicate the pest that is present in the food. A food safety regulator checks and ensures that the food is fit to be consumed. The pathogens that are present in the food can affect the person. This can result in the transmission of the pathogen.

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Answer Details:

Grade: High School

Subject: Biology

Chapter: Microorganism

Keywords:

Human, food, transmission, environment, cockroach, flies, building, home, facilities, consume, pathogen, disease, sick, rodents.

What lung values changed (from those of the normal patient) in the spirogram when the patient with emphysema was selected?

Answers

When the patient with emphysema was selected lung values changed (from those of the normal patient) in the spirogram are:

ERV, IRV, RV, FVC, FEV1, FEV1 %

The reason behind the changes of these values are due to the loss or inability of electric recoil. A spirogram (graph like structure obtained by the respiratory movements) is measured by spirometer.

The lung values that changed include the following: ERV < IRV < RV < FVC < FEV1%. Spirogram is used to measure pulmonary function test. It is a test that tests the efficiency of the lungs to exchange carbon dioxide and oxygen gases. The vital capacity of the lung is equal to TV +IRV + ERV and the total capacity is equal to the summation of TV, IRV, ERV and RV.

The sixth mass extinction event is likely being caused by ___

Answers

It is caused by human-induced events. It is a far reaching and quick reduction in the biodiversity on Earth. Such an occasion is distinguished by a sharp change in the assorted variety and wealth of multicellular living beings. A mass extinction is under way and is being caused for the most part by people through territory modification or potentially pulverization, transport of obtrusive species, and overhunting and overharvesting.

​Approximately what percentage of the body's energy needs at rest is supplied by fat

Answers

Final answer:

Around 60% to 70% of the body's energy at rest comes from fat. Our metabolism is designed to extract energy from a mix of macronutrients and at rest, the body shifts towards using more energy from fat.

Explanation:

Approximately 60% to 70% of the body's energy needs at rest are supplied by fat. Our bodies are designed to extract energy from a mix of macronutrients including fats, proteins, and carbohydrates. When we are at rest, the metabolism shifts towards using a higher proportion of energy from fat. This shift occurs because fat, although it takes more oxygen to metabolize than carbohydrates, provides a more dense supply of energy. However, the exact percentage can vary based on several factors like diet, physical activity level, and genetics.

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Which characteristics are used to differentiate between the six kingdoms?

Answers

Answer;

-The body type, cell type, cell structure, nutrition

Explanation;

-There are six commonly accepted kingdoms. Each kingdom includes a set of organisms that share similar characteristics. The six Kingdoms are: Archaebacteria, Eubacteria, Fungi, Protista, Plants and Animals.

-Organisms are placed into these categories based on similarities or common characteristics. Some of the characteristics that are used to determine placement are cell type, nutrient acquisition, and reproduction.

-The two main cell types are prokaryotic and eukaryotic cells. Common types of nutrient acquisition include photosynthesis, absorption, and ingestion. Types of reproduction include asexual reproduction and sexual reproduction.

The characteristics are used to differentiate between the six kingdoms

1. similarities or differences in morphological features (outer forms)

2. anatomy (body structure)

3. physiology (body chemical reaction)

4. behavior

5. produce offspring / mate each other

6. gene mapping

Further explanation

Grouping living things is known as classification

The study of grouping living things is called Taxonomy

The classification of living things aims to

1. knowing the benefits for the benefit of humans2. knowing his family relationship3. knowing the dependence between living things4. makes it easy to learn living things

In ancient times the classification of living things was classified into only 2, namely plants (kingdom Plantae) and animals (kingdom Animalia)

In subsequent developments the classification of living things is divided into 6 kingdoms, namely:

1. Animalia (animal), are multicellular \2. Plantae (plants) are multicellular3. Fungi (fungi) have eukaryotic cells4. Protists, single-celled5. Kingdom Monera is no longer used and instead the kingdom of Archaebacteria and Eubacteria appears.

Monera is a single-celled living creature

The classification of living things themselves is based on

1. similarities or differences in morphological features (outer forms)

2. anatomy (body structure)

3. physiology (body chemical reaction)

4. behavior

5. produce offspring / mate each other

6. gene mapping

Learn more

Compare and contrast the domains of Bacteria and Archaea

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one reason scientists have developed a system to classify organisms

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taxonomy.

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Keywords: taxonomy, The classification of living things

A friend tells you he's having flashbacks and vivid nightmares of past events. In addition, he's feeling emotionally numb. You might be concerned that he needs to be checked for possible

A. PTSD.
B. DSM.
C. GAD.
D. OCD.

Answers

A. Post-Traumatic Stress Disorder 

The correct answer is option A, that is, PTSD.  

PTSD or post-traumatic stress disorder is the condition that illustrates an extreme and on-going emotional reaction, which occurs due to coming in contact with trauma or extreme stress. Clinically, such incidents comprise threatened or actual death, a threat to physical or psychological integrity, or any kind of serious physical injury.  

PTSD is considered to be mainly an anxiety disorder and should not be confused with usual adjustment and grief post-traumatic events. The symptoms of PTSD comprises flashbacks, nightmares, insomnia, emotional detachment, irritability, loss of appetite, anxiety, and clinical depression.  


What causes sweating during running in order to maintain homeostasis? Jenny is running for more than an hour on a pleasant sunny morning. Her body is sweating to maintain homeostasis, which is caused by the action of a/an (blank)

Answers

Increased body temperature did this on plato

Answer:

The correct answer would be "increased body temperature".

The homeostasis refers to the ability of the body to maintain a stable internal environment irrespective of the change in the external environment.

For example, running causes an increase in body temperature as heat or energy, carbon dioxide, and water are produced by cellular respiration. This increase in body temperature activates the sweating of the body.

The sweating with the help of evaporation reduces the elevated body temperature to the normal range.

Thus, homeostasis of body temperature is maintained.

Why should the lateral sides of the infant's heel be used for capillary puncture?

Answers

Damage to nerve or bone can happen when you puncture infant's extremities to collect capillary blood. The safest region to do this is the lateral side of the infant's heel. With this method, the chance damage to the nerve of bone is much less than the middle of an infant or the finger.

Genes that are linked together _____.

Answers

Genetic Linkage. Linked genes sit close together on a chromosome, making them likely to be inherited together (left). Genes on separate chromosomes are never linked (center). But not all genes on a chromosome are linked.
chromosome is the answer your looking for

Which part of a flower will develop into fruit?

Answers

The part of a flower that develops into a fruit is called an ovary.

The ovary is the part of the flower that develops into a fruit.

Harmful effects of __________ include oversensitivity to light, increased risk of heart attack and stroke, liver damage, thinning of the blood, and deterioration of the stomach lining.

Answers

Final answer:

The harmful effects of pain relievers, such as oversensitivity to light, increased risk of heart attack and stroke, liver damage, thinning of the blood, and deterioration of the stomach lining, highlight the significant but sometimes overlooked adverse effects of NSAIDs and Acetaminophen.

Explanation:

The question addresses the harmful effects of pain relievers, which can range from oversensitivity to light, increased risk of heart attack and stroke, liver damage, thinning of the blood, to deterioration of the stomach lining. Nonsteroidal anti-inflammatory drugs (NSAIDs) are known to prevent blood clots and decrease inflammation but can cause gastrointestinal ulcers and bleeds, as well as kidney disease. Acetaminophen, an alternative with fewer side effects than aspirin, does not inhibit platelet aggregation but poses a severe risk of liver damage in cases of overdose.

Oversensitivity to light is a less discussed but significant adverse effect of some pain relievers.The increased risk of heart attack stroke and liver damage are alarming concerns associated with the prolonged or improper use of NSAIDs and Acetaminophen.Thinning of the blood and deterioration of the stomach lining highlight the systemic impact these medications can have beyond their targeted pain-relieving effects.

Individuals must use these medications as directed and be aware of their potential side effects to minimize health risks.

When egg whites are whipped they stiffen into a meringue. the change that occurs in the protein is called?

Answers

It is called Denaturation. Denaturation is a procedure in which proteins or nucleic acids lose the quaternary structure, tertiary structure and auxiliary structure which is available in their local state, by use of some outer anxiety or compound, for example, a solid corrosive or base, a concentrated inorganic salt, a natural dissolvable, radiation or warmth.

What is the term for acquiring an infection through mucosal tissues?

Answers

It is a Direct contact, droplet infection effects are when the mucosal surfaces of the eyes nose and mouth. Occurs when dental team member inhales aerosol generated by hand piece or air water syringe.

Which answer correctly compares the Krebs cycle and the electron transport chain?

Answers

Is there choices? If not I would say that the Krebs cycle is needed in order for the electron transport chain to occur.

Answer:

choices

Explanation:

A: Both are aerobic and focus on breaking down organic molecules.

B:  Both occur in the mitochondria and result in producing more ATP.

C:  Both are anaerobic and occur inside the mitochondria.

D; Both occur in the cytoplasm and result in producing more ATP.

answer: D

What effect does a small number of wild dogs have on rabbit?

Answers

The rabbit would be terrified and shift into survival mode. The dogs would, most likely, eat it. They do this because it is programmed into their heads to kill to survive. Hope that helps.

Final answer:

A small number of wild dogs would likely lead to an increase in the rabbit population due to reduced predation. Rabbit coloration is also influenced by natural selection, affecting survival based on environmental factors, such as snow for camouflage. Rabbit population dynamics are complex and also influenced by reproductive strategies and ecological balance.

Explanation:

The effect of a small number of wild dogs on rabbit populations is an example of predator-prey dynamics in an ecosystem. Wild dogs act as predators to rabbits, causing a direct impact on rabbit numbers. A smaller population of wild dogs might lead to an increase in the rabbit population, as fewer rabbits would fall prey to these predators. However, this effect can vary based on the presence of other predators, availability of food, and the habitat's carrying capacity for rabbits.

Changes in rabbit populations can also be driven by other environmental factors and adaptive traits. For example, rabbit coloration is an important factor for survival, as stated in the learning materials that white fur is advantageous for rabbits in snowy environments, in which it acts as camouflage against predators like foxes. On the other hand, darker fur makes rabbits more visible and increases predation risk. Therefore, natural selection can lead to changes in fur color frequency based on the environment.

Furthermore, the reproductive strategies of animals, such as the lack of parental care in species with high offspring numbers, as mentioned in example c, can also influence population dynamics and the ecological balance. In the case of rabbits, which typically have a high reproductive rate, even a small number of predators like wild dogs can have a significant effect by consuming a large number of juveniles, hence influencing the overall population stability.

The Big Bang theory was supported by the discovery of the
A- galaxies in the universe
B- temperature of the universe
C-gravitational forever between planets
D- red shift in electromagnetic spectrum

Answers

the Answer would be D. Red shift in electromagnetic spectrum

Answer:

Option D, red shift in electromagnetic spectrum

Explanation:

According to the Big Bang theory the universe is continuously expanding and all celestial bodies are moving away from each other. This fact was established when red shift affect was discovered. A red shift is basically a shift/increase in the wavelength of light released by any star over a period of time. The farther the star, the more is its wavelength red shifted.

This red shift is continuously increasing which means that the light emitting celestial objects are continuously moving away from each other.

Hence, option D is correct answer

Imagine that a probe sent to mars brings back a sample that contains a very primitive life-form, which appears similar to bacteria. scientists are able to revive it and begin to grow it in culture. much to their amazement, they discover that the organism has dna and that the dna encodes proteins. however, the dna of these martian microbes contains only two nucleotides. if the martian microbe uses triplet codons, what is the maximum number of different amino acids that it can have in its proteins

Answers

The formula for the maximum number of different amino acids can be calculated using the equation:

Maximum number of different amino acids = [(Number of nucleotides) ^ (Number of codons)] - 1

Where it is given that:

Number of nucleotides = 2

Number of codons = triplet = 3

The -1 in the equation implies that at least one of the codons must be a stop.

 

Therefore substituting to the equation:

Maximum number of different amino acids = (2 ^ 3) – 1

Maximum number of different amino acids = 8 – 1

Maximum number of different amino acids = 7                        (ANSWER)

The most important characteristic that a drug must have to freely pass from the gastrointestinal tract into the circulation is to be

Answers

There are two answers – in salt form and fat soluble, depending on which way you look at it. According to Penn Foster's "How Drugs Work”, "No matter what form of the drug is swallowed, the drug must go into the free solution in the stomach or small intestine to pass from the GI tract into circulation. One factor that allows many drugs to go into free solution in the GI tract is that the drug is in a salt form within the commercial preparation. Salts of drugs dissolve readily in stomach liquid."


Also quoted from "How Drugs Work", "The portal blood supply is joined to the small intestine by capillaries connecting to the gastrointestinal mucosal cells. In some cases, it isn’t easy to get through these mucosal cells because there’s a selective process that attempts to allow only important substances through. In the case of drugs, it has been found that the fat-soluble molecules (lipid-soluble  drugs) are absorbed through these mucosal cells very well."

Why don't we experience a solar eclipse every month?

Answers

This is due to the earths spin on it's axis and the moons gravitational pull. We don't and cant get a lunar eclipse  or a solar eclipse  every month, since the alignment of the sun, moon and Earth is not exact enough.

How might a substrate of the citric acid cycle block respiration when it is present in great excess

Answers

The substrate of the citric acid cycle which can block respiration when it is present in excess is MALONATE. Malonate inhibits respiration by competing with succinate dehydrogenase for its acitve site. Malonate binds to the active site without reacting, thus competing with succinate. This disrupts the cellular respiration in the cell.

_______ is vesicle-aided transport out of the cell.

Answers

Exocytosis is vesicle-aided transport out of the cell. During this process vesicles are carried to the cell membrane and extracted out of the cell in the environment. 
A vesicle of large molecules fuses with the plasma membrane and leaves the cell.The opposite process of exocytosis is endocytosis, which is vesicle-aided transport into the cell.
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