[40 POINTS!!!!]
According to the National Institute of Health, atrial fibrillation (A-F) occurs if rapid, disorganized electrical signals causing the heart's two upper chambers, called the atria, to fibrillate. The term "fibrillate" means to contract very fast and irregularly. In A-F, blood pools in the atria. It isn't pumped completely into the heart's two lower chambers, called the ventricles. As a result, the heart's upper and lower chambers don't work together as they should. Based on the passage above, how will atrial fibrillation affect blood pressure?
A. It will lower blood pressure because less blood is pumped per beat.
B. It will increase blood pressure because the heart is contracting faster.
C. It will increase blood pressure because the atria fill fully with blood.
D. It will lower blood pressure because blood volume drops in the atria.

Answers

Answer 1
The answer is B. It will increase blood pressure because the heart is contracting faster
Answer 2

Answer:

A. It will lower blood pressure because less blood is pumped per beat.

Explanation:

I thought B might be a potential answer, but since the atria are not filling properly and heart rate is increased, it would make sense that blood pressure drops (effect of faster heart contraction is negated by the drop in blood volume in the atria).


Related Questions


In a cell, the fluid within the cell membrane is called
And the fluid Outside the cell membrane is called:

cytoplasm; interstitial fluid
interstitial fluid: cytoplasm
interstitial fluid: tissue fluid
tissue fluid: interstitial fluid

Answers

in a cell the fluid within the cell membrane is called what? —-> intracellular fluid

the fluid outside the cell membrane is called what? —-> tissue fluid

im not toooooo sure about the second one buttt i tired lil

In a cell, the fluid within the cell membrane is called cytoplasm, and the fluid Outside the cell membrane is called interstitial fluid. The correct option is A.

What is cytoplasm?

The gelatinous solvent that fills the inside of a cell is known as cytoplasm. It is made up of water, salts, and organic molecules.

Certain intracellular organelles, including the nucleus as well as the mitochondria, are separated from the cytoplasm by membranes.

The cytoplasm of a cell performs all functions related to cell expansion, growth, and replication.

Interstitial fluid can be found in the spaces between cells. It is caused by substances leaking from blood capillaries.

It aids in the delivery of oxygen and nutrients to cells as well as the removal of waste products.

Glucose, salt, fatty acids, and minerals such as calcium, magnesium, and potassium are all found in interstitial fluid.

Interstitial fluid contains nutrients from blood capillaries. It can also contain waste products from metabolism.

Thus, the correct option is A.

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PLEASE HELP IT IS FOR PSYCHOLOGY!!

How does the brain determine who we are? To what extent should individuals be held accountable for their actions when the individual is known to suffer from neurological disorder?

Answers

Answer:

i think it  bc it cennected to ower bodys and know ower body langues  so i thin this how ower brain  know who we are

Explanation:

Scientists believe lichen is the common ancestor for all plants.​

Answers

False

Explanation:
Scientists believe it’s Ancient green algae that is the common ancestor for all plants
Hope this helps:)

The absorption process in the kidneys depends on the ___ between the medulla and the filtrate.

Answers

Answer:

try b and tell me if i am wrong please

Explanation:

The absorption process in the kidneys depends on the between the medulla and the filtrate in the cortex as the cortex is found in between the medulla and filtrate.

The cortex presents an area for arterioles and venules from the renal artery and vein, in addition to the glomerular capillaries, to perfuse the nephrons of the kidney. Erythropoietin, a hormone important for the synthesis of the latest crimson blood cells, is likewise produced withinside the renal cortex. Its predominant feature is to reabsorb water and sodium chloride from the filtrate.

What is the function of coetex ?

This conserves water for the organism, generating exceedingly focused urine: The inner-maximum location of the kidney is organized into pyramid-like structures, that include the majority of the nephron structure. renal cortex: The outer location of the kidney, among the renal tablet and the renal medulla, includes an area that consists of blood vessels that hook up with the nephrons.

Thus it is clear that the absorption process in the kidneys depends on the cortex that is in between the medulla and the filtrate.

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Diseases that can be controlled by __________ are considered environmental health concerns.
a.
improving sanitation in large urban areas
b.
treating water
c.
manipulating the environment
d.
providing adequate health services to screen for and control diseases
e.
all of the above

Answers

Answer:

C.

The other ones are benefits except B and C so there aren’t any concerns.

You take a job selling diet marshmallows at a company where the average employee earns $70,000 a year. Later you discover the company has a president and 30 salespeople, but each sales person eats $20,000 a year. How can the "average" be so high?

Answers

To find the average they also take into account the salary of the president, who probably makes a lot more than $20,000.

PLS HELP WILL GIVE BRAINLIEST AND 50 POINTS!!!
The runoff from fertilizer has increased the phosphate levels in a nearby body of water. What effect does this increase in phosphate have on the body of water?

Increases oxygen levels
Colic
Fatigue
Increases algae growth

Answers

The effect that an increase in phosphate has on the body of water is increased oxygen levels. The correct option is A.

What are fertilizers?

Fertilizers are compounds used to give plants the most nourishment possible for growth and development. They can also be administered directly to plants.

These chemical fertilizers include potassium as salt, phosphorus as phosphates, and nitrogen as nitrates. These chemical fertilizers pollute water bodies by entering through runoff when they are applied to soil or plants during rain.

Nitrates and phosphates enter water bodies as a result, leading to eutrophication. Algal overgrowth brought on by eutrophication results in low oxygen levels in bodies of water.

Therefore, the correct option is A. Increases oxygen levels.

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Answer:

Increases algae growth

Explanation:

An increase in phosphate levels in a body of water due to fertilizer runoff would likely lead to an increase in algae growth.

Giving everything!!!!!!!!! Plzzzz help!!!!!!!!!!! ASAP!!
The immune system has two modalities, specific and nonspecific responses. Which of the following is an example of a nonspecific response?

A. an antigen binding to an antibody

B. inflammation at the site of an infection

C. a cytotoxic T cell attacking a pathogenic agent

D. lymphocytes activating plasma cells in the blood

Answers

The following answer in the equation is D

B. Inflammation at the site of an infection is an example of a nonspecific response of the immune system.

What is non-specific immune response?

Non-specific immune responses, also known as innate immunity, are the first line of defense against invading pathogens and are activated immediately upon exposure to a foreign invader. These responses are not specific to a particular pathogen and do not require previous exposure or recognition. Instead, they provide a general response that helps to prevent the spread of the pathogen and contains it until the specific adaptive immune response can be activated.

Examples of non-specific immune responses include physical barriers such as skin and mucous membranes, as well as physiological responses such as inflammation, fever, and the activity of phagocytic cells like macrophages, which engulf and destroy pathogens. Non-specific immune responses also include natural killer cells, which are able to recognize and kill infected cells, and the complement system, a group of proteins that help to enhance the ability of other components of the immune system to destroy pathogens.

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All chemical reactions

A. Involve the creation of new atoms.

B. involves a change in chemical bonds.

C. are dangerous.

D. create energy

Answers

I think the answer is B. Involves a change in chemical bonds (hope this helps:)

Answer:

c

Explanation:

16.In which phase is the substance at 20 °C and 0.75 atm?
solid
liquid
vapor
all of the above

Answers

Answer:

solid

Explanation:

Whats a zygote and what does it do someone pls help me-

Answers

Answer:

A zygoat is an egg that has been fertilized by the male gamite (sperm)

Explanation:

The zygoat develops into an embryo, which then becomes a baby

Which property of matter is conserved in chemical reactions and shown by balanced equations?
mass
ООО
volume
density
shape

Answers

Answer:

The correct answer is - Mass.

Explanation:

A chemical equation represents the change in the complete composition during the chemical reaction. The reactants and the mass of the products remain constant in the balanced equation which means there is no loss of mass take place in a chemical reaction.

Chemical reactions follow the law of conservation of mass which means like energy mass can not be destroyed or created and represent by the balanced chemical equation.  

Answer:

a mass

Explanation:

How is structure of DNA adapted to its function

Answers

Answer:

Deoxyribonucleic acid is the macromolecule carries the genetic information. It has two phosphate sugar back bone chains which are joined together with the help of nucleotides (A, T, G, and C). This set of nucleotide refers as gene. These genes define the primary function of DNA to carry genetic information. This DNA structure gets coiled in manner that can carry large amount of information. These nucleotide sequences have ability to get transcribed into protein molecule with the help of translation and transcription factors.

One strand of sequence is sufficient to maintain coding sequence. The pair wise structure helps in case of one strand of structure get damaged and it required in process of replication.

Base stacking provides the stability in the structure of the DNA. The corresponding nucleotides combine with other molecule and minimize the hydrophobic effect. This molecule combines in the perpendicular alignment to the DNA base line.

It often found that TATA box on 5’ end. It is found that on 5’ because process starts from 5’ end and TATA box have A, T nucleotide. These molecules have double hydrogen bond, which is weaker then G, C pair.

Explanation:

The structure of DNA adapted to its function - DNA contains the instructions needed for an organism to develop, survive and reproduce.

DNA sequencesDNA has nucleotide made up of pentose sugar and phosphate backbone, and nitrogenous bases in a particular sequence.The sequence converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodiesDNA winds into a double helix, with hydrogen bonding between the bases of each strand like the rungs of a ladder.The order of nucleotides in a gene dictate the amino acid sequence of the proteinDNA acts to store information while proteins are the effector molecules.

Thus, The structure of DNA adapted to its function - DNA contains the instructions needed for an organism to develop, survive and reproduce.

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Which is an accurate genotype for free earlobe (dominant)?
A.
EE or ee

B.
ee

C.
Ee

D.
Ee or EE

E.
EE

Answers

Answer:

a

Explanation:

Answer:

A

Explanation:

How does a loess affect the environment around it?

Answers

Answer:

Because loess is deposited from the atmosphere it provides an important geologic archive of past atmospheric circulation that can be used to test atmospheric circulation models

Explanation:

Answer:

Loess often collects in river headwaters, and subsequently gets carried to riverbeds. The buildup can be so dense, that it diverts the water over the adjacent flood plain. This may result in the flooding of rivers.

Explanation:

Please Helpp

Why would it be difficult for plan animal cells to make cell energy if there wasn't sunlight

Answers

It would be more difficult for plant cells because they wouldn’t be able to perform photosynthesis. Without photosynthesis, plants cannot make glucose (energy). Animals can get energy by eating other organisms (food).

how enzymes inhibitions studies in the formulation and development of drugs​

Answers

Answer:

Enzyme inhibitors may alter the elimination rate of a particular drug or inhibit detoxication pathways

Explanation:

An enzyme inhibitor is a chemical compound capable of binding to an enzyme in order to reduce its activity. An enzyme inhibitor may bind to an active site and thus decreases the rate of reaction (direct inhibition). Enzyme inhibitors may act 1-to Inhibit detoxification enzymes and 2-reduce the elimination rate of enzyme drugs, thereby having dose-dependent toxicity effects. For example, many medicines are based on the inhibition of Cytochromes P450 (CYPs) proteins, which are a superfamily of enzymes required for drug metabolism.

Which part of the plant converts energy from the sun into food?
Question 1 options:

Roots

Stem

Leaves

Flowers

Answers

The answer is C) Leaves

Answer:

The leaves

Explanation:

its the leaves since they are the ones that take in the energy

Which is the final electron acceptor in the electron transport chain of cellular respiration?

Answers

Answer:

Oxygen.

Explanation:

Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP). During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP). Therefore, the intermediary products are produced at the glycolysis and citric acid cycle stage.

Additionally, mitochondria provides all the energy required in the cell by transforming energy forms through series of chemical reactions; breaking down of glucose into Adenosine Triphosphate (ATP) used for providing energy for cellular activities in the body of living organisms.

Basically, oxygen goes into the body of a living organism such as plants, humans and animals when they breathe while glucose is absorbed by the body when they eat.

Oxygen is the final electron acceptor in the electron transport chain of cellular respiration. The oxygen accepts electron when it passes through ATPase and the electron transport chain of cellular respiration.

Answer:

oxygen

Explanation:

Please help me ASAP anyone

Answers

Answer:

this is the answer like the commet.

b

Answer:

it's b...............

56. Students in an eighth grade science class are investigating different cells under a microscope,
as shown by the three microscope drawings below.
What part of the cell theory is best illustrated by these three slides?
O All organisms are composed of cells.
All organisms are composed of a single cell.
O All organisms are composed of more than one cell.
O All organisms come from pre-existing cells that divide.

Answers

All organisms come from pre-existing cells that divide is the right answer

All organisms come from pre-existing cells that divide.

What is Microscope?

Microscope: a device that magnifies small objects, giving the user a close-up view of minuscule structures at a scale suitable for observation and analysis.

Even though optical microscopes are the focus of this article, an image can also be magnified by a variety of different wave types, such as acoustic, X-ray, or electron beams, and is then captured using direct or digital imaging, or a combination of these techniques.

The magnifying power of a microscope is a dimensionless ratio that expresses how often the thing under examination seems to be magnified.

Therefore, All organisms come from pre-existing cells that divide.

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Which of the following statements is FALSE regarding the effects of exercise on metabolism and body composition? Group of answer choices It slightly raises the metabolic rate for several hours after exercise. The increase in muscle mass raises the metabolic rate. It increases caloric expenditure and thus helps regulate body weight. It can result in substantial weight gain due to increase in muscle mass.

Answers

Answer: The false statement regarding the effect of exercise on metabolism and body composition is that (It can result in substantial weight gain due to increase in muscle mass).

Explanation:

Metabolism of the body simply means all the chemical reactions in all the cells of the body and the metabolic rate is normally expressed in terms of the rate of heat liberation during chemical reactions or physical activities.

The body composition of healthy adults who maintain stable body weight, energy intake is balanced with energy output. Energy output includes energy used for:

--> performing essential metabolic functions of the body.

--> performing various physical activities (exercise)

--> digesting, absorbing and processing food.

--> maintaining body temperature.

When an individual performs exercise, the rate at which heat is liberated( metabolic rate) is increased. This is because ATP which is gotten from the food is used as energy during exercise and is converted to heat as the end product.

Also, increase in muscle mass raises the metabolic rate because the more muscle in the body, the more calories are used up during rest and therefore the higher your metabolic rate.

Therefore the statement is false about the effects of exercise on metabolism and body composition because exercise involves energy output cannot lead to SUBSTANTIAL weight gain even in increased muscle mass.

describe what is happening at each phase of meiosis​

Answers

The process of meiosis takes place in two phases. Meiosis I; Meiosis II; Phases of Meiosis 1 and Meiosis 2. During meiosis I, a cell is divided into two, and in meiosis II, further division takes place, resulting in a total of four haploid cells. Before the start of the process, the parent cell goes through a stage of preparation called the interphase.

answer was found here -https://ibiologia.com/phases-of-meiosis/#:~:text=The%20process%20of%20meiosis%20takes%20place%20in%20two,through%20a%20stage%20of%20preparation%20called%20the%20interphase.

Hope this helps you :3

___ Is the movement of a liquid along a solid because of this property of water know as___ select 2 choices

Answers

Hi I hope you have a wonderful day :)



Which statement best describes bacteria?

Answers

Answer:

what are the statements

Explanation:

Answer:

Bacteria are multicellular eukaryotic organisms,which make you sick.

Explanation:

help asap pls.❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗❗
Certain fungi can fight or cause disease.

Question 9 options:
True
False

Answers

Answer:

true

Explanation:

What are three tasks that DNA must be able to perform in all organisms? Select three answer choices.
A. It must store genetic information.
B. It must discard foreign genes.
C. It must instruct cells to produce needed molecules.
D. It must copy itself.
E. It must move to locations throughout the cell.

Answers

Answers: A, C, and D

Answer:

A,C,and e i think sorry if i'm wrong

What is one function of the organ system shown below in the picture?

Answers

The main function of the lungs is the process of gas exchange called respiration (or breathing). In respiration, oxygen from incoming air enters the blood, and carbon dioxide, a waste gas from the metabolism, leaves the blood. A reduced lung function means that the ability of lungs to exchange gases is reduced.

The circulatory and respiratory systems are involved in respiration. They provide oxygen to the body cells and remove carbon dioxyde. The correct option is A. To remove carbon dioxyde from the body.

Two systems work together when providing oxygen to the body cells and removing carbon dioxide: The circulatory and respiratory systems

• Respiratory system

This system is in charge of the gasses interchange. It takes oxygen from the air and releases carbon dioxide.

• Circulatory system

This system is in charge of driving oxygen to the organism's tissues and cells and taking away carbon dioxide from them.

These gases are in the oxygenated and deoxygenated blood, respectively.

The heart bombs blood through arteries, veins, and capillaries to the whole body.

The blood carries oxygen to different tissues.

This oxygen is absorbed in the lungs and proceeds from the air that we breathe. Its final destiny is all the cells in the organisms.

Types of circulation

• Lung circulation

1. Moves blood between the heart and the lungs.

2. Deoxygenated blood goes from the heart to the lungs

3. In the lungs, deoxygenated blood releases carbon dioxide and gets oxygenated again.

4. Carbon dioxide is released by exhalation.

5. Blood absorbs oxygen from small air sacs named alveoli.

6. Oxygenated blood returns to the heart.

Systemic circulation

1. Carries blood between the heart and the rest of the body.

2. Oxygenated blood leaves the heart and moves to all the cells in the body.

3. Deoxygenated blood returns from tissues to the heart.

According to thi framework, the function of the organ system shown in the picture is to remove carbon dioxyde from the body. Option A.

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What does the Smooth E.R. Do

Answers

Answer:

it's important function is to manufacturer Lipids

Answer:

The smooth E.R mainly makes the lpids that make up the cell membrane.

Explanation:

describe thermal energy in your own words

Answers

Answer:

Due to the movement of particles within that object or system, thermal energy is energy owned by an object or a system. ... The result of thermal energy is that an object or system has a temperature that can be measured. Thermal energy can be transferred in the form of heat from one object or system to another.

Explanation:

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