how does blood pressure work
Answers
Blood pressure is a measure of the force of blood pushing against the walls of arteries as the heart pumps blood throughout the body.
Blood pressure is measured in millimeters of mercury (mmHg) and is represented by two numbers: systolic pressure (the higher number) and diastolic pressure (the lower number). Systolic pressure measures the pressure in the arteries when the heart beats and pumps blood, while diastolic pressure measures the pressure in the arteries when the heart is at rest between beats. Blood pressure can vary depending on factors such as physical activity, stress, and medications, and is an important indicator of overall health. High blood pressure (hypertension) can increase the risk of heart disease and stroke, while low blood pressure (hypotension) can cause dizziness and fainting.Learn more about blood pressure: https://brainly.com/question/14661197
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Related Questions
Using the characteristics of life, explain why your lab stool is not alive.
Answers
Some of the important characteristics of life are:-
Metabolism: It is a major characteristic of life without exception. All living organisms are made of chemicals. These chemicals, small or big, belonging to various classes, sizes, functions, etc., are constantly being made and changed into other biomolecules. These conversions are chemical reactions or metabolic reactions.
The sum total of all the chemical reactions occurring in our body is metabolism.
No non-living object exhibits metabolism here for eg. a lab stool that does not exhibit metabolism and hence is not alive.
Reproduction, is also a characteristic of living organisms but with a few exceptions. No non-living object is capable of reproducing or replicating by itself. Hence again it shows why a lab stool is not alive as it cannot reproduce as a living organism can.
The most complicated feature of all living organisms is the ability to sense their environment and respond to these environmental stimuli which could be physical, chemical, or biological. No nonliving object possesses such qualities.
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A stool is non-living as it does not possess any of the characteristics of a living organism.
Characteristics of life are
1.Sensitivity or Response to Stimuli- Living organisms shows response to diverse stimuli like plants shows sensitivity to light, they bend towards the source of light. A stool does not show any kind of response to different stimuli.
2.Reproduction- All the living organisms are capable of reproduction whether sexually or asexually but a stool having no living cells is not capable of reproduction.
3.Growth and Development- Organisms do show growth in their body and their structure but a stool is similar all the time it cannot grow on its own, it can only be modified with human efforts.
4.Energy Processing- All organisms use a source of energy for their metabolic activities. Some use energy from sun like plants and some use chemical energy from different substances to carry out metabolic activities. A Stool cannot perform metabolic activities in it as it has no living cells.
5.Regulatory mechanism- Even the smallest organisms are having complex structures and require multiple regulatory mechanisms to perform functions, respond to stimuli, and do other many things.
Hernce from the above points we can conclude that a stool is nonliving object as it does not show any response to stimuli, has no growth and development, is incapable of reproduction, also need no energy.
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Which statement is an accurate description of genes?
1
Proteins are made of genes and code for DNA.
2.
Genes are made of proteins that code for nitrogen bases.
3.
DNA is made of carbohydrates that code for genes.
4.
Genes are made of DNA and code for proteins.
Answers
Answer:
An accurate description of genes is that genes are made of DNA and code for proteins.
Explanation:
Genes are the molecules responsible for containing the genetic information that determines specific characteristics or features of an individual. Genes are housed in chromosomes, in specific locations called locus.
A DNA molecule forms a chromosome, and fragments of that same molecule form the genes on that chromosome. The information contained in each gene codes the synthesis of proteins, as well as the synthesis of RNA.
The other options are not correct because:
1. Proteins are not made of genes, but of amino acids, and they do not code for DNA.
2. Genes are not made of proteins, but of DNA fragments.
3. DNA is not made of carbohydrates.
Answer:
Genes are made of proteins that code for nitrogen bases.
Plz plz plz help help hell u will save my life
Answers
Answer:
BIOSPHERE LEVEL
Explanation:
MAINIDEA Summarize how an air mass forms.
Answers
An air mass forms whenever the atmosphere remains in contact with a large, relatively uniform land or sea surface for a time sufficiently long to acquire the temperature and moisture properties of that surface.
Lorenzo pushes on a heavy crate with an applied force of 250N at an angle of 30° below the horizontal. The fo friction opposing the applied force is 95 N. If the mass of the crate is 45 kg, what is the acceleration of the crate.
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Answer:
what is the speed and time
A _____ survivorship curve is characterized by an organisms producing large numbers of offspring but providing little to no care for them.
Answers
Answer: Type III survivorship curve
Explanation: It characterized by an organisms producing large numbers of offspring but due to large numbers of offspring only few are able to get parental care and reach adulthood.
todo sobre la digestion
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Answer: El sistema digestivo humano consiste en el tracto gastrointestinal más los órganos accesorios de la digestión. La digestión implica la descomposición de los alimentos en componentes cada vez más pequeños, hasta que puedan ser absorbidos y asimilados por el cuerpo. El proceso de digestión tiene tres etapas.
Explanation:
1. What evidence would you want to see before you agreed that the deer population is too high? 2. Deer are herbivores. What effects do you think a high deer population would have on Wesselman Woods? 3. Let's assume that you agree that the deer population is too high. What solutions would you propose for solving the deer population problem? 4. What other solutions might people propose? 5. Who are the stakeholders in the Wesselman Woods deer herd management? (Hint: someone who drives by the woods would be a stakeholder, due to the risk of a collision).
Answers
Before agreeing that the deer population is too high, I would want to see evidence such as an increase in deer-related accidents, a decrease in the amount of vegetation in the area, and an increase in the number of deer sightings in the area.
The Answer to Question 2 - 52. A high deer population in Wesselman Woods could have a negative effect on the vegetation in the area, as deer are herbivores and would consume a large amount of the plants. This could lead to a decrease in biodiversity and a disruption in the ecosystem.
3. One solution for solving the deer population problem could be implementing a controlled hunting program to reduce the number of deer. Another solution could be using contraception methods to control the deer population.
4. Other solutions that people might propose include relocating the deer to another area or implementing fencing to keep the deer out of certain areas.
5. The stakeholders in the Wesselman Woods deer herd management include the local residents, the local government, the Indiana Department of Natural Resources, and any individuals or organizations that use the woods for recreational purposes.
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What is your prediction for this experiment? A. lodine, glucose, and starch will be able to diffuse across the dialysis tubing membrane because they are the same molecular size. • B. Iodine alone will be able to diffuse across the dialysis tubing membrane due to its molecular size C. Iodine and glucose will be able to diffuse across the dialysis tubing membrane, but not starch due to its molecular size. D. Glucose and starch will be able to diffuse across the dialysis tubing membrane, but not iodine due to its molecular size.
Answers
Because of the atomic scale of iodine, it can permeate by itself over the dialysis tube membrane. Potatoes will diffuse past the dialysis tubing membranes due to its molecular size, while iodine and glucose may.
The correct answer is: C.
Does the dialysis tubing membranes allow for the diffusion of iodine, glucose, and starch?Due to the size of the starch granules compared to the holes in the dialysis bag, starch could flow through synthetic permeable membrane in a selective manner. Nevertheless, the barrier cannot withstand the size of water, glucose, or iodine molecules. The erratic mobility of molecules causes diffusion.
Chlorine or starch, which contains molecules?Starch molecules cannot cross this membranes due to being excessively big, whereas iodine molecules can because they are the right size. A Starch-Iodine complex is produced as a result, and it is contained inside the "cells," in which the Starch is imprisoned.
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How many hydrogen atoms are there in 4 molecules of CH3Br?
Answers
Answer:
three hydrogen atoms and one bromine atom
multiple sclerosis (ms) is a disease in which the myelin sheaths are destroyed. what process does this interfere with and what would be the consequence?
Answers
Both of the nervous system and also the peripheral nervous have nerves that are covered with myelin; multiple sclerosis symptoms are often brought on by the central nervous system's myelin being destroyed.
What are the interfere of multiple sclerosis?The myelin layer that shields the nerve fibers is attacked by T lymphocytes of the body in multiple sclerosis (MS). The myelin is partially or entirely removed from the fibers by the T cells, leaving the neurons without insulation and protection. The brain cannot communicate with the other body components through the nerves. The brain may interpret the messages it receives incorrectly because the messages the nerves are trying to transmit are delayed or distorted.
Multiple portions of the myelin are destroyed, leaving behind scar tissue that is known as sclerosis because of its characteristics of rigid tissue. Plaques are another name for these damaged regions in which the sheath has indeed been destroyed and then further impairs the nerves' capacity to transmit messages. Magnetic resonance imaging (MRI), the method used by doctors to evaluate and track the development of multiple sclerosis, can be used to detect these plaques.
What are the consequence of multiple sclerosis?Multiple sclerosis doesn't have a known etiology. A body's immune system attacking its own tissues is regarded as an autoimmune disease. A fatty substance that covers and shields the nerve fibers inside the brain and the spinal cord in MS is destroyed by this immune system error (myelin).
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What part of the nervous system is the main control and integrative center of the autonomic nervous system? cerebrum hypothalamus medulla oblongata thalamus
Answers
Answer:
option b) Hypothalamus
For this activity, you will gather all of the information you can about the spleen. In the end, you will need to create a poster to share your findings with others.
Gather your facts. By the end you will need to know the following:
What are the spleen's main functions?
How does your spleen work with other organs to keep your body healthy?
Which diseases or disorders can affect your spleen?
Can a person live without a spleen?
Answers
The main function of spleen are blood filtration, blood storage and Hematopoiesis, spleen works closely with other organs of the immune system, such as the lymph nodes and bone marrow, the diseases or disorders that can affect the spleen are; Splenomegaly, Splenic trauma, and Splenic infarction. Yes, it's possible to live without a spleen.
Functions of the spleen; The spleen filters the blood and removes old or damaged red blood cells, as well as other cellular debris.
The spleen acts as a reservoir for blood, storing extra red blood cells and releasing them into circulation when needed, such as during times of increased demand or in cases of hemorrhage.
In early life, the spleen is involved in the production of red blood cells, but this function diminishes as the bone marrow takes over.
Interaction with other organs; The spleen works closely with other organs of the immune system, such as the lymph nodes and bone marrow, to help defend the body against infections.
The spleen also interacts with the liver, as it filters blood that has been processed by the liver and helps to remove waste products and old red blood cells from circulation.
Diseases or disorders that can affect the spleen; Splenomegaly; Enlargement of the spleen, which can be caused by various conditions such as infections, liver diseases, and blood disorders.
Splenic trauma; Injury to the spleen due to trauma, such as from a car accident or a fall.
Splenic infarction; Occurs when blood supply to the spleen is blocked, leading to tissue damage and potential loss of spleen function.
Yes, it is possible to live without a spleen, although it can increase the risk of certain infections, especially from encapsulated bacteria. People who have had their spleen removed, either due to injury or medical conditions, may need to take precautions such as receiving vaccinations and antibiotics to prevent infections.
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Calculate the doubling time for U.S.A with its growth rate of .71% A. 9.85 years B. .98 years C. 98.59 years
Answers
Plugging in the values, you get: doubling time = 72/0.71 = 101.4 years
Therefore, the answer is C. 98.59 years.
The Doubling time for the USA with a growth rate of 0.71% is approximately 98.59 years.
To calculate the doubling time for the growth rate of the USA, we can use the formula:
Doubling Time = (ln(2)) / (growth rate)
Plugging in the values, we have:
Doubling Time = (ln(2)) / (0.0071)
Doubling Time ≈ 97.7 years
Therefore, the correct answer is C. 98.59 years.
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how extrusive igneous rocks and intrusive igneous rocks form?
Answers
Answer:
Intrusive igneous rocks are formed when magma cools slowy and large crystals are formed
Extrusive igneous rocks are formed when magma cools quickly, and small or no crystals are formed, it may be vesicular meaning it may contains air bubbles.
Plant cells contain both chloroplasts and mitochondria; animal cells have only mitochondria. What can be inferred from this statement?
A. Plant cells do not use ATP
B Animal cells make their energy with chloroplasts.
C Chloroplasts make glucose; mitochondira break glucose down into ATP.
D. Plants do not eat, so both chloroplasts and mitochondria are needed to make enough energy for plants to grow.
Answers
Answer: D. Plants do not eat, so both chloroplasts and mitochondria are needed to make enough energy for plants to grow.
Explanation: Option A is invalid since plant cells do use ATP. Option B is invalid since animal cells don't make their energy with chloroplasts. Option D is the most realistic one since chloroplasts in the plant are the ones that make the food for the plants, plant doesn't have a "mouth" so they depend on chloroplast to make food.
Sorry if I didn’t help :(
If it isnt d its c
Nepal is rich in medicinal plants
Answers
Answer: well yes but actually yes
Explanation:
Answer:
Yep
Explanation:
6. What is the correct sequence for blood being pumped from the heart to the lungs
Answers
Explanation:
1) Deoxygenated blood flows from the body into the right atrium of the heart through the superior and inferior vena cava.
2) The right atrium contracts, forcing the blood through the tricuspid valve into the right ventricle.
3) The right ventricle contracts, pumping the blood through the pulmonary valve and into the pulmonary artery.
4) The pulmonary artery carries the deoxygenated blood to the lungs, where it receives oxygen and releases carbon dioxide.
5) Oxygenated blood flows from the lungs into the pulmonary veins.
6) The pulmonary veins carry the oxygenated blood to the left atrium of the heart.
7) The left atrium contracts, forcing the blood through the mitral valve into the left ventricle.
8) The left ventricle contracts, pumping the oxygenated blood through the aortic valve and into the aorta.
9) The aorta distributes the oxygenated blood to the rest of the body.
If several highly educated scientists all study the same scientific data, which of the following is most likely to explain why they may all have different conclusions?
Answers
If several highly educated scientists all study the same scientific data, then they may have different conclusions because of the following factors:
Interpretation of data: Each scientist may have a different interpretation of the data, leading to different conclusions. This is because interpreting data involves the use of subjective judgment and prior experiences with similar data.
Personal biases: Personal biases may also affect the conclusions drawn from the scientific data. Personal biases refer to a scientist's preconceived ideas or prejudices that can influence their interpretation of the data. This can affect their ability to draw an objective conclusion.
Overemphasis of certain aspects: The overemphasis of certain aspects of the data or leaving out of certain details can result in different conclusions among scientists. Scientists may focus on different aspects of the data, leading to different conclusions.
Experimental setup and procedure: The experimental setup and procedure can also have an impact on the conclusions drawn from the data. If there are variations in the experimental setup or procedure, it can lead to different conclusions among scientists.
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If water were a nonpolar molecule, how would its properties be different?
A. Water would be a much heavier molecule.
B. Water would be able to climb up inside plants.
C. Water would not stick together as well.
D. Water would form hydrogen bonds.
Answers
What is reproductive isolation?Why is it necessary for speciation to occur? Explain one way reproductive isolation might occur.
Answers
Reproductive isolation is a process in which individuals in a population are prevented from reproducing. This isolation can occur in several ways, such as a physical barrier that separated these species into two groups that will reproduce with each other and generate a new species.
Why is it necessary for speciation to occur?Speciation is an essential evolutionary process for the creation of new species. It is worth remembering that from reproductive isolation, the individuals of a population have been differentiating and evolving and in the end, there will be a different species from the initial one. Therefore, speciation is necessary for the emergence of new species.
Explain one way reproductive isolation might occur.Reproductive isolation may occur due to a geographic barrier. In this case, a population is separated by a geographic barrier such as a river, a canyon, or a mountain, thus generating subpopulations that will begin to evolve and adapt in different ways. In the end, we will have different subpopulations, but in the beginning, they were part of the same population.
*Golden Rice is an example of what?*
Giving brainiest 5 stars and thank you!
A. DNA replication
B. Pest control
C. Genetic engineering
D. Mitosis
Answers
Answer:
C.genetic engineering
What is the current research and technology of the resource on plastic
This is for 25 points
Answers
Answer:
•
Explanation:
Answer:
The main source of synthetic plastics is crude oil.
Explanation:
are environmental factors more likely to affect genotype or phenotype?
Answers
Environmental factors are more likely to affect phenotype than genotype.
Phenotype refers to the observable physical characteristics of an organism, a product of the genetic information contained in the genotype, in accordance with the conditions of the determined environment in which the organism lives.
The phenotype supposes the manifestation of the genotype based on the environmental factors, the traits expressed by the phenotype are behavioral and physical.Regardless of the genotypic information manifested, environmental factors will also shape the phenotype of an organism, since it can suffer accidents, changes or adaptations that a genetically similar individual but in another environment would not suffer.Therefore, we can conclude that the phenotype is the variable expression of a genotype in accordance with the environmental factors.
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PLZ ANSWER FIRST PERSON TO ANSWER GETS BRAINLIST
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Which of these statements indicates an experiment is systematic?
A. The experiment is repeated many times.
B. The experiment is about a testable question.
C. The experiment is very complicated and uses lots of chemicals.
D. The experiment includes a good plan for what measurements to take.
Answers
Answer:
Since the control is different, making an accurate prediction for this test is difficult.
Explanation:
what do you think about this
Answers
Answer:
I would conclude the the answer is D. Sugar, Glucose, and Starch.
Explanation:
Hopefully this helps! If this wasn't the answer you were looking for please don't hesitate to private message me or comment here. Have a nice day/night! :)
Is Cytoplasm Eukaryotes, Prokaryotes or Both?
Answers
Answer:
The cytoplasm is a part of both Eukaryotes and Prokaryotes cells
Explanation:
The cytoplasm is an integral part of both prokaryotic and eukaryotic cells and functions to house and maintain an optimal environment for the cellular organelles.
What are the two functions of the nervous system in a mammal?
learning and gas exchange
blood circulation and coordination
information processing and movement
gas exchange and blood circulation
Answers
Answer:
Information processing and movement
Work backwards: if you find an offspring that is not genetically identical to its parent's organism, what type of reproduction created it? why?
Answers
Answer:
The organism was created via sexual reproduction.
Explanation:
If it were genetically identical to its parent, then that would've meant that it was created asexually. In sexual reproduction, the offspring's DNA is more or less a combination of both parents' DNA.