Describe ways in which a healthy artery differs from an artery affected by coronary heart disease

Answers

Answer 1

Answer:

A healthy artery is wider and has no blockages. The lumen (which is the hole in the centre of the artery), is open and clear. This means there is more blood flow. An artery of a person suffering from coronary heart disease is often blocked, usually by a fatty deposit. This means the blood does not flow as well. (See diagram, in which I would draw two arteries, one with a blockage of fatty deposit, one clear and healthy).

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Related Questions

Science rejects any hypothesis not supported by __________________________ and the results of ___________________________ experiments. what are the blanks?

Answers

Answer:

Observations; control.

Explanation:

A hypothesis is considered to be tentative or an educated guess and can be defined as a testable explanation for an  observation or a scientific problem. An example of a hypothesis is saying, Corona virus is caused by the introduction of the "5G" technology.

On the other hand, a control experiment  can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same  situation by the scientist without involving or using the suspected condition.

Hence, science rejects any hypothesis not supported by observations and the results of control experiments.

This ultimately implies that, for any hypothesis to be acceptable in science, it must be supported by observations and the results of control experiments; this give rise to factual informations, theories and by extension solutions to problems.

True or false? Objects in the universe are slowly moving apart as the universe
changes over time.
True
False

Answers

Answer:

True

Explanation:

The expanding universe theory was developed from the observed redshifts of celestial bodies, that the space between galaxies is expanding so that they appear to recede from us at velocities that increase with their distance

Which color circle includes the peptide bond? -red -green -none of them -blue

Answers

The answer to this is blue

When magma reaches the surface of the earth, it is called​

plz help

Answers

Answer:

Lava

Explanation:

Answer:

it is called lava

Explanation:

Which statement about solar eclipses is false?
Select one:
a. They occur during the full moon phase.
b. They are rare.
c. They last only a few minutes.
d. They may be partial or total eclipses.
Check

Answers

I guess the answer is most likely b) they are rare.

solar eclipses can occur fairly often, sometimes 2-4 times a year

The statement about solar eclipses that is false is the statement that; "they occur during the full moon phase."

An eclipse is said to occur when one celestial body casts a shadow on another celestial body. A solar eclipse occurs when the moon comes in between the sun and the earth such that a shadow of the moon is cast on the earth. A solar eclipse may be partial or complete.

The statement about solar eclipses that is false is the statement that; "they occur during the full moon phase."

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Which organic molecule is part of an enzyme?
A. fatty acid
B. nucleotide
C. amino acid
D. monosaccharide

Answers

Answer:

C

Explanation:

Proteins are organic molecule in a enzyme, but amino acids are a type of protein. The answer is C.

What monomer makes up carbohydrates?

Answers

Answer:

Explanation:

Glycerol: Also called as glyceraldehyde. This is the three-carbon carbohydrate that has an aldehyde group in its structure. ... Erythrose: It is a 4 carbon monomer i.e a tetrose sugar. Threose: It is also 4 carbon monomer similar to erythrose in structure with a small variation. ... Ribose: It is a 5 carbon monomer.

Answer:

Monomers are the building blocks of the four basic macromolecules of life- monosaccharides are the monomers of carbohydrates, amino acids are the monomers of proteins, glycerol/fatty acids are the monomers of lipids, and nucleotides are the monomers of DNA.

Explanation:

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Hydra falls under what kingdom

Answers

Answer:

Animalia

Explanation:

A car drives 150 m to the east then backtracks 30 m to the west. Describe the mathematical operation you will use to determine the net movement of the car.

Answers

Answer:

Subtraction operation

The car's displacement is  120 m west

Explanation:

Given;

first motion of the car as 150 m east

second motion of the car as 30 m west

The mathematical operation that will be used to determine the net movement of the car is subtraction operation.

The net movement of the car is the car's displacement.

Displacement is given by;

D = final position - initial position

D = 30 m - 150 m

D = - 120 m

The negative sign is direction = west ward direction

Thus, the car's displacement = 120 m west

Do biotic and abiotic ever overlap?

Answers

Jhhiuggghhhhhhshdhdbbdjdhdhdbdbdbjsjdixjxhdbdbdndjkdjd

Answer:

Yes

Explanation:

Soil is abiotic but in order for soil to be fertile and actually useful it needs to have biotic components in it such as organic matter

Which specific process helps the respiratory system get rid of excess water and heat?

diffusion

inhalation

exhalation

evaporation

Answers

Answer:

It's C

Explanation:

EXHALATION

Answer:

C. exhalation

Explanation:

breaking down of food into simple soluble form in the body​

Answers



Digestion and Absorption
Mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes. In chemical digestion, enzymes break down food into the small molecules the body can use.
Digestion and Absorption

Mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes. In chemical digestion, enzymes break down food into the small molecules the body can

Part A: List the 9 characteristics of life.

Part B: Choose 3 of the characteristics of life above. Give an example of each that describes how that characteristic contributes to the organism's survival.

Answers

Answer:growth excretion, responsiveness, movement ,reproduction, growth i got six  sorry i can't remember

Explanation:

A diseased cell is no longer able to produce proteins. Which cell structure is most likely malfunctioning?

Answers

Answer:

Ribosome structure

Explanation:

Answer:

THE RIBOSOMAL RIBONUCLEIC ACID WILL MALFUNCTION

Explanation:

THE rRNA IS WHAT PODUCES THE PRITEINS

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All floods have warning signs and so disasters can be prevented. TRUE OR FALSE

Answers

Answer:

true

Explanation:

Explain how critical thinking helps scientists analyze information for accuracy and bias.

Answers

Answer:

Critical thinking requires scientists to ask questions about information they come across and assess its validity. This facet of critical thinking helps them avoid bias that originates from personal opinion and helps them distinguish information and fact from common belief.

11. Consider the sequence shown, determine the complementary RNA and the amino acids
DNA
TAC
GTA
ΤΤΤ
G CA
CAC
RNA
Amino Acids

Number 11. Please help

Answers

ATG, CAT, AAA, CGT, GTG

adenine, thymine, guanine
cytosine, adenine, thymine
adenine
cytosine, guanine, thymine
guanine, thymine

for RNA, you’ll just do the opposite of what the DNA strand says..... so A pairs with T and C pairs with G

for the actual acids, you’ll just list the names of the RNA sequence, which could be adenine, thymine, guanine, or cytosine

The explanation is as follows:

The following information should be considered:

DNA has four nucleotides namely: Adenine, Gunanine, Thymine and Cytosine. While on the other hand,  RNA has Uracil in place of THymine. The process of copying the information from DNA into RNA is called transcription, whereas translating the nucleotide sequence into amino acid sequence is called translation.  

DNA           TAC           GTA            TTT                GCA              CAC

RNA            AUG         CAU             AAA               CGU             GUG

Amino       Methionine Histidine    Lysine            Arginine      Valine

acids        (start codon)

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Volleyball season is right around the corner and I think I need to make sure I am healthy and I want to lose some weight. I keep seeing these commercials for Special K cereal and if you eat it for 2 weeks, you will lose 10 pounds. I want to test this idea and see if it actually works. I plan on eating whatever I want for the next two weeks and am going to track my weight every morning. Then I will eat nothing but Special K cereal, milk and water for two weeks and track my weight in the morning. What do you think my hypothesis should be? What will my variables be? Hypothesis: Independent variable: Dependent Variable:

Answers

Answer:

Hypothesis: If you eat Special K cereal for 2 weeks, you will lose 10 pounds.

Independent variable: Special K cereal.

Dependent Variable: Weight lose.

Explanation:

Hypothesis: The term "hypothesis" is determined as a testable and a precise statement of what a specific researcher or experimenter predicts would be considers as the outcome of a particular study.

Independent variable: In research, the term "independent variable" is determined as a variable that is being re-organized in an experiment or research in order to see its impact on the dependent variable. Independent variable influences the dependent variable directly. 

Dependent variable: The term "dependent variable" is determined as a variable that is being measured or tested in an experiment or research by the experimenter or researcher and is directly influenced by the independent variable.

Glucose reaches each and every cell through the circulation of ____ .

Answers

Answer:Blood

Explanation:

Glucose reaches each and every cell through the circulation of blood, which is present in Option A as the primary function of the circulatory system, which includes the heart, blood vessels, and blood, is to transport essential nutrients.

What is blood?

After food is digested and absorbed into the bloodstream, glucose is transported to cells throughout the body by the circulatory system, which consists of the blood, heart, capillaries, etc., where the heart pumps blood throughout the body via arteries, which branch into smaller vessels called arterioles and then into even smaller capillaries. The circulatory system also plays an important role in removing waste products, including carbon dioxide, from the body's tissues, so glucose has been used by cells for energy, the waste product, carbon dioxide, is transported back to the lungs, where it is exhaled.

Hence, glucose reaches each and every cell through the circulation of blood, which is present in Option A.

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The question is incomplete, complete question is below

Glucose reaches each and every cell through the circulation of ____ .

A)Blood

B)stomach

How are the careers of an oceanographer and hydrologist similar? How are they different?

Answers

Answer:

An oceanographer is one who studies the attributes of the ocean like temperature, waves, currents and tides geology of the sea floor. And a hydrologist is one who researches the distribution, circulation and physical properties of underground and surface waters.

Answer:

An oceanographer is one who studies the attributes of the ocean like temperature, waves, currents and tides geology of the sea floor. And a hydrologist is one who researches the distribution, circulation and physical properties of underground and surface waters.

Explanation:

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Which of the following structures are present in plant cells but absent in animal cells?

Choose 1 answer:

(Choice A)
A
Cytosol

(Choice B)
B
Mitochondria

(Choice C)
C
Cell walls

(Choice D)
D
Golgi bodies

Answers

Answer:

C

Explanation:

The cell wall in only present in plant cells, not animal cells. Hence, the fact that plant cells are rectangular while animal cells are more circular.

The answer is C. Animal cells do not have a cell wall, only plant cells do.

The producer in an energy pyramid contains about 1,000 kcal of energy. About how much of this energy is used by the producer or lost as heat to the environment? 10 kcal 90 kcal 100 kcal 900 kcal

Answers

Answer:

900 kcal

Explanation:

According to 10% law , only 10% of total energy of primary consumer is transferred to secondary consumer . The rest is lost either to the environment as heat or consumed by the primary consumer .

So out of 1000 kCals of energy 900 kCals will be lost to the environment as heat or consumed by the the producer .

Answer:

900cal

Explanation:

Edge

HURRY! Michael decides to bake bread one morning. He measures ingredients, mixes them together to make a dough, and cooks the dough in an oven. As the dough cook's, Michael observes the bread rising. Which of the following is evidence of the chemical change in Michael’s bread-making process?

Answers

Answer:

The bread rising as carbon dioxide is released.

Explanation:

Just did it

The trapped carbon dioxide causes the dough to rise, evidence of a chemical change in Michael's bread-making process.

What is Fermentation?

Fermentation is defined as a metabolic process that produces chemical changes in organic substrates through the action of enzymes which is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen.

Microorganisms such as bacteria and fungi have metabolic genes that allow them to produce enzymes to break down a variety of sugar metabolites.

Yeast and sugar produce carbonic gas through fermentation which is why as the yeast consumes the sugar, it produces alcohol (ethanol) and carbonic gas (carbon dioxide) as waste products, hence the carbon dioxide trapped in the dough lifts up,

Thus, the trapped carbon dioxide causes the dough to rise, evidence of a chemical change in Michael's bread-making process.

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why is carbon dioxide carry in dissolved form in the blood that oxygen​

Answers

carbon dioxide is more soluble in water than oxygen and hence is mostly transported in the dissolved form in our blood. because carbon dioxide have more solubility than oxygen

what do you observe at low temperature medium temperature and high temperature​

Answers

Low temperature means it’s cold or chilly so you be observing snow at low temperature. Medium temperature is like mild breezy not too hot not too cold so you’ll be observing breezy winds. High temperature is like hotness so your be observing more sun.

The temperature of a body can be related to the energy transferred between the particles of the body. Hence, temperature is directly proportional to the energy of the particles in the sample.

The kinetic energy possessed by the particles in a sample is highest at the highest temperature attained by the body.

The kinetic energy drops as the temperature drop s from high to medium to low temperature. Hence, the low temperature samples have very low kinetic energy.

Therefore, the energy possessed by the particles of a sample is directly proportional to the temperature of the sample.

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what happens if you eat to much food

Answers

Answer:

You chunk it up.

Explanation:

Answer

Throw up

Explanation:

Ur stomach will not feel good so you will most likely throw up.

2. What element is the most important found in Biomolecules?

Answers

Answer: Carbon

Explanation: Most biomolecules are organic compounds, and just four elements—oxygen, carbon, hydrogen, and nitrogen—make up 96% of the human body's mass. But many other elements, such as the various biometals, are present in small amounts, but most importantly carbon is the most important element found in Biomolecules.

The diagram below shows hydrogen bonds between water molecules.

What describes each hydrogen bond?

1. An attraction between neutral ends of two molecules.

2. An attraction between the positive end of one molecule and the negative end of another molecule.

3. An attraction between positive ends of two molecules.

4. An attraction between negative ends of two molecules.

Answers

Answer 2..

Hydrogen bond attracts to a negative end because it’s a positive

hydrogen bonds between water molecules. An attraction between the positive end of one molecule and the negative end of another molecule describes each hydrogen bond.

What are the characteristics of water  ?

Water is amphoteric in nature because it serve as both acid and a base, highly viscous in nature due to the presence of a force of attraction  between molecules.

Water is participate in Redox reaction as it help in release of dihydrogen molecules easily, the dielectric constant  is also high, form the connections with other chemical compounds known as hydrates.

The temperature below   4 degrees Celsius the water  ordinarily behaves, when it is cooled further, its unusual properties of water molecule are being observed.

During cooled condition,  the density of water can also slowly increases and further cooled down leads to decrease in the density of water and the expansion of matter  called as the anomalous property of water.

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Which molecule separates the contents inside of the cell from the contents outside of the cell

Answers

Answer:

Which molecule separates the contents inside of the cell from the contents outside of the cell

Explanation:

cell membrane

Every cell in the body is enclosed by a cell (Plasma) membrane. The cell membrane separates the material outside the cell, extracellular, from the material inside the cell, intracellular. It maintains the integrity of a cell and controls passage of materials into and out of the cell.

The molecule that separates the contents inside of the cell from the contents outside of the cell is LIPIDS.

Lipids represent a broad range of biomolecules made up of carbon (C), hydrogen (H) and oxygen (O) atoms.

In some cases, lipids also contain phosphorus (P), nitrogen (N) or sulfur (S).

Lipids (i.e., phospholipids and cholesterol) represent the main biomolecules of the cell membrane whose function is to separate the interior of the cell from its surrounding environment.

In conclusion, the molecule that separates the contents inside of the cell from the contents outside of the cell is LIPIDS.

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Question 3 of 10
A__ sample is taken from the entire population, without a person choosing
each person.
A. random
B. convenience
C. voluntary
O D. nonconvenience
SUBMIT

The answer is A: random

Answers


It’s A. Random!! I looked it up!
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