A recent clinical study demonstrated a possible connection between coffee consumption and heart health. The researchers performed
a 6-week trial with 191 individuals, all of whom were heavy coffee drinkers (average of 5 cups/day) prior to the experiment, but none of
whom were smokers. They divided the 191 participants into three groups: no coffee consumption, 1-3 cups/day, and 4 or more
cups/day. They measured blood levels of cholesterol and homocysteine as indicators of heart health Only the no-coffee group showed
a significant drop in both indicators. Previous studies had demonstrated that decreases of the magnitude observed in the no-coffee
group could cut the incidence of heart disease by 10-15%.
a) What is the problem/question being studied?
b) What is the hypothesis?
c) What is the experimental variable?
d) List the controls
e) What is being measured to test the hypothesis?​

Answers

Answer 1

Answer:

The summary as per the issue is summarized in the following portion of the clarification.

Explanation:

(a)

The association regarding coffee intake and insulin sensitivity is being tested and the results. This procedure is intended to examine whether unnecessary coffee intake is positive or negative again for the heart. Or if there are any cardiovascular problems it may induce.

(b)

The hypothesis seems to be the consequence of such a hypothesis. This illustrates inside such an outcome the association between the factors and response variable. It is stated to provide an understanding of the experiment's response.

(c)

Any conditions that may be adjusted, calculated, or influenced during an analysis constitute variables. Three research variables have become primarily present. Variable autonomous, variable dependent including variable power. They are those variables that can only be modified in an experiment by a researcher. Independent variables are essentially the cause for the effect, as well as a shift of independent variables impacts the variables (dependent) accordingly.The independent variable throughout this analysis is the number of coffees, in which 3 categories are given separate amounts of cups of coffee. The researcher decides the coffee which should be offered to all the participants.

(d)

Through an analysis, monitoring variables are those variables most of which are maintained stable. Variables under regulation throughout this experiment include body temperature, ambient moisture.

(e)

To verify the theory, the ratio of cholesterol including homocysteine throughout the blood would be calculated. The theory indicates that a rise in cholesterol levels, as well as homocysteine levels, can be caused by increased coffee intake, thus raising their risk of cardiovascular diseases.

Related Questions

30 POINTS
The chart below shows the atomic numbers and mass numbers for two elements. Element 2 has a greater atomic number and mass number that element 1.

Element 1

Atomic number 26
Mass number 56

Element 2

Atomic number 31
Mass number 70

How many more neutrons does element 2 have than element 1?

5
14
9
39

Answers

the answer is 9 because to find the amount of neutrons you have to take away the atomic number from the mass

Answer:

9

Explanation:

i took the hmh test


Which of the following best explains why a cell's plasma membrane is composed of two layers of phospholipids rather than just a single layer?

Answers

Answer: The hydrophilic tails are directed inward and the hydrophobic heads are directed outwards.

Explanation:

A phospholipid is made up of two ends a hydrophilic or water-loving end that is phosphate head and a hydrophobic tail that is made up of fatty acid tail. The arrangement of phospholipid in a bilayer structure allows the entry of oxygen, carbon dioxide, and lipids to pass through them via concentration gradient via simple diffusion.

Lipids are amphipathic molecules that compose the membrane. Membrane lipidic bilayers allow only the hydrophilic heads to interact with water inside and outside the cell, while hydrophobic tails remain in the interlayer space, away from water.

----------------------------------------------

Two lipidic layers compose the cell membrane. There are also proteins and glucans incrusted in between.

Since lipids are amphipathic molecules with hydrophilic heads -negatively charged phosphate group- and hydrophobic tails, they need to form two opposite layers.  

Lipids are arranged with their hydrophilic polar heads facing the exterior and the interior of the cells in contact with water. Meanwhile, their hydrophobic tails are against each other, constituting the internal part of the membrane.

Membranes are fluid, meaning that lipids and proteins composing them can move laterally, transversally, or rotationally.  

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Related link: https://brainly.com/question/2500247?referrer=searchResults

Why do some croplands suffer from excessive soil salinity?

Answers

The excessive use of water for irrigation in dry climates, with heavy soils, causes salt accumulation because they are not washed out by rainfall. The practice of waterlogging without adequate drainage has also become a serious cause of soil salinization .
Factors such as sea level rise, drought, usage of poor quality groundwater for irrigation and improper usage of fertilizers and pesticide has led to the soil become salt-affected. Salinization of farmland and limited fresh water access is threatening global food security and the livelihood of many farmers.
Salts occur naturally within soils and water. Salination can be caused by natural processes such as mineral weathering or by the gradual withdrawal of an ocean. It can also come about through artificial processes such as irrigation and road salt. Soil salinity can be reversed, but it takes time and is expensive. Solutions include improving the efficiency of irrigation channels, capturing and treating salty drainage water, setting up desalting plants, and increasing the amount of water that gets into aquifers. Mulches to save water can also be applied to crops. Salinity becomes a problem when enough salts accumulate in the root zone to negatively affect plant growth. Excess salts in the root zone hinder plant roots from withdrawing water from surrounding soil. This lowers the amount of water available to the plant, regardless of the amount of water actually in the root zone. If the level of salts in the soil water is too high, water may flow from the plant roots back into the soil. This results in dehydration of the plant, causing yield decline or even death of the plant. Crop yield losses may occur even though the effects of salinity may not be obvious. The excessive use of water for irrigation in dry climates, with heavy soils, causes salt accumulation because they are not washed out by rainfall. ... The practice of waterlogging without adequate drainage has also become a serious cause of soil salinization.

Choose one human body system and describe the major organs that make up the system. ​

Answers

Answer:

respiratory system

-heart

-Lungs

-trachea

-pulmonary blood vessels

-pharynx

-oral cavity

-nasal cavity

according to Google ofcourse.....

What effect does the Coriolis Effect have on surface currents in the Northern and Southern Hemispheres?

Answers

Answer:

Coriolis effect

the result of Earth's rotation on weather patterns and ocean currents. The Coriolis effect makes storms swirl clockwise in the Southern hemisphere and counterclockwise in the Northern Hemisphere.

?????!!!!!!!!!!!Help

Answers

Answer:

1. lysis

2. Synthesis

3. polymer

4. Hydro (hydrolysis)

5. dehydrate

6. monomer

I believe these are the correct answers...

Name at least 2 parts of the cell that form Vesicles to transport materials around the
cell.

Answers

Answer:

golgi apparatus and the endoplasmic reticulum

Which behavior is both territorial and used for courtship?
1.) baring teeth as a sign of aggression 2.) sparring or wrestling using antlers or horns
3.) dance rituals with potential partners
4.)defending a nest from predators​

Answers

Answer:

2.) sparring or wrestling using antlers or horns

Explanation:

Territorial behavior is defined as the animal behavior in which animals protect their territory from other species.

Courtship behavior is defined as the animal behavior that is involved in mating and eventual reproduction.

Sparring or wrestling using antlers or horns is both territorial and used for courtship. Many animals or males uses their antlers or horns for wrestling or to fight with other animals to protect their territory while some males are involved in ritualized mating behaviors that include antler wrestling (sparring). The loud vocalizations during antler wrestling show the dominance of males that females and leads to mating.

Hence, the correct answer is "2.) sparring or wrestling using antlers or horns".

How long did the initial contamination of the Hudson River last?

Answers

Answer:

30 years

Explanation:

Answer:

30 Years

Explanation:

The Hudson river was contaminated in 1947-1977. Which is about 30 years

This activity is an example of which threat to biodiversity?

Answers

Answer:

hi

Explanation:

4. This is the step in the scientific method in which you explain your results and whether your
hypothesis was correct.
a research
c. conclusion
b. results
d. hypothesis

Answers

Answer:

C conclusion

Explanation:

After doing experiment and making a hypothesis and getting results you make a conclusion about your results

Answer:

c. conclusion

Explanation:

The conclusion is the part where you make a conclusion about the results you got. Was your hypothesis correct or incorrect? Does the experiment have to be done again maybe in a different way? etc.

Therefore, it is answer c.

PLEASE HELP URGENT QUESTION NEEDED ASAP PLEASE BIOLOGY

QUESTION:
Generate an argument about whether or not viruses should be considered living or nonliving. Use at least two pieces of data to back up your claim.

Answers

Answer:

viruses are non living when they are not in another living being

But when they get into a living being,the virus cell produces more of the virus cells and in the end the host cell explodes

viruses are non living when they are not in another living being is the correct answer

Baking soda, Black coffee, Distilled water, Lemon juice out of these 4 item, which the strongest acid? How do you know?​

Answers

Answer:

Baking soda is the strongest acid I think. I learned it in bio.

Explanation:

Hope this helps!

what process is responsible for removing waste from the cell?​

Answers

Answer:

Cellular Stomach

Explanation:

Containing acid and several types of digestive enzymes, lysosomes digest unwanted organelles in a process termed autophagy, from the Greek words for “self” and “eat.” The multipurpose lysosome also processes proteins, bacteria and other “food” the cell has engulfed.

Quick please whoever answer’s it correct will get brainliest answer.

Study the Image

Which point shows the trade winds?

1
2
3
4

Answers

Answer:

2

Explanation:

saw it on brainy like last year and that was the correct answer

What speed do thorn bugs move at?

Answers

Answer:

they are not built for speed, and often move quite slowly.

Explanation:

<3

They often goes slow.

When a parent is genetically unchanged

A) Heredity
B) Hybrid
C) Purebred
D)Cross

Answers

D..... I’m not sure it’s been a while
The answer is B . Hybrid .

Help Plz!!
Eliminate one word from each list and explain why you were able to eliminate it.

1. dog, cat, whale, oyster, mushroom

2. prokaryotic, eukaryotic, nucleus

3. bacteria, archaea, eukarya

4. fungi, animalia, plantae

5. sunflower, oak tree, button mushroom

*I also report incomplete answers, so please answer completely*

Answers

Answer:

1. mushroom

2. nucleus

3. eukarya

4. animalia

5. button mushroom

Explanation:

1. Mushroom because everything else in the list is an animal, while a mushroom is a fungi.

2. Nucleus because eukaryotic and prokaryotic are types of formations of a cell, while a nucleus is part of a cell and not a cell formation.

3. Eukarya because the Eukarya include all animals, plants, fungi, and protists. These organisms are eukaryotes, meaning they have membrane-enclosed nuclei within their cells. The Bacteria and Archaea are both considered prokaryotes, because their cells lack true nuclei, meaning a membrane does not enclose their genetic material.

4. Animalia because fungi and plantae are stationary organisms, while animalia are mobile. (ex. fungi and plantae= roots and animalia= feet/ not attached to one place)

5. Button mushroom because sunflowers and oak trees are producers, while a button mushroom is a decomposer.

During a running race, a person's breathing rate and heart rate increase. These changes most directly help the person do which of the following?

A. increase the rate of digestion.
B. decrease the rate of gamete production.
C. decrease the rate of protein synthesis in neurons.
D. increase the rate of cellular respiration in mitochondria.

Answers

Answer:

D. increase the rate of cellular respiration in mitochondria

These changes most directly help the person to increase the rate of cellular respiration in mitochondria.

What is cellular respiration?

Cellular respiration is a series of metabolic processes that take place within a cell of an organism.

During a running race, a person's breathing rate and heart rate increase. These changes most directly help the person to increase the rate of cellular respiration in mitochondria.

Thus, the correct option is D " increase the rate of cellular respiration in mitochondria."

Learn more about cellular respiration here: https://brainly.com/question/25921566

#SPJ2

Which structure allows molecules to pass in and out of the cell?

Answers

The answer is the cell membrane in animal cells.

Answer:

b.chlorapast

Explanation:

Where is carbon located on our planet, and how are these carbon reservoirs different from each other?

Answers

Answer: Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms. These are the reservoirs, or sinks, through which carbon cycles. The ocean is a giant carbon sink that absorbs carbon.

What happens if there is no oxygen in cellular respiration of glucose?

Answers

Anaerobic respiration is a normal part of cellular respiration. Glycolysis, which is the first step in all types of cellular respiration is anaerobic and does not require oxygen. If oxygen is present, the pathway will continue on to the Krebs cycle and oxidative phosphorylation. However, if oxygen is not present, some organisms can undergo fermentation to continually produce ATP.

Each student in a science class of 25 performed the same experiment. Each student shares their data and it is
recoded on a class data table. Tamara compared the data that she personally collected in her experiment to the
data collected by the rest of her classmates.
Which of the following might indicate to her that her results are valid?

Answers

Answer: three other classes performed the same experiment.

Explanation:

Two proteins in the same cell perform different functions. This is because 2 points the two proteins are composed of what?​

Answers

Answer:

It is composed of a single strand of nucleotides

Explanation:

What impact does deforestation have on the carbon cycle?

Answers

Answer:

Deforestation can affect the water cycle and the carbon cycle. It will decrease the amount of transpiration. It will also increase the amount of carbon dioxide in the atmosphere by releasing the carbon dioxide as trees are burned and by decreasing photosynthesis.

five waste product of plants​

Answers

Answer:

Oxygen, Carbon dioxide, glucose, leaves and bark.

:)

Help needed! Just answer the question!
PICTURE BELOW! <3

Answers

Answer:

B

Explanation:

for the second part

A sarcomere is...

A. an organ
B. a protein filament or fiber
C. the basic contractile unit of muscle contraction
D.an organelle

Answers

Answer:

C, basic contractile unit of muscle fiber.

Explanation:

If you read the definition of sarcomere, this is what it says: "A sarcomere (Greek σάρξ sarx "flesh", μέρος meros "part") is the complicated unit of striated muscle tissue. It is the repeating unit between two Z lines. Skeletal muscles are composed of tubular muscle cells (myocytes called muscle fibers or myofibers) which are formed in a process known as myogenesis."

hope this helps.

If we are moving the decimal point to the left we are moving from a ___________ unit to a _______________ unit.

Answers

I think medium unit and large units

Two things you would do to help determine if these things are living

Answers

Answer:

Explanation:

"All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, adaptation, growth and development, homeostasis, energy processing, and evolution. When viewed together, these characteristics serve to define life."

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