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sweet-ann [11.9K]
1 year ago
6

many more people who smoke develop lung cancer than those who do not smoke. What research would possibly show that cigarette smo

king does not cause cancer?
Biology
1 answer:
Ugo [173]1 year ago
3 0

A research which discovers that there is a certain condition that causes an individual to smoke cigarette and the same condition causes the individual to have cancer. Therefore, it is the condition that causes cancer but not smoking cigarette.

<h3>What is a research?</h3>

A research is also referred to a study and it can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause), in order to determine or measure the dependent variable (the effect) and reach a logical conclusion with results.

<h3>What is cancer?</h3>

Cancer can be defined as the uncontrolled division of certain body cells, which then proceed to invade the surrounding tissues and interfere with the normal functioning of the human body.

<h3>The types of cancer.</h3>

Generally, there are different types of cancer and these include the following:

  • Prostrate cancer.
  • Carcinoma.
  • Breast cancer.
  • Malignant mesothelioma.

In conclusion, a research which would possibly show that cigarette smoking does not cause cancer is a research which discovers that there is a certain condition that causes an individual to smoke cigarette and the same condition causes the individual to have cancer. Therefore, it is the condition that causes cancer but not smoking cigarette.

Learn more about cancer research here: brainly.com/question/7565254

#SPJ1

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Unidirectional flow in the heart is ensured because the heart contains ___________.
jekas [21]
<span>Unidirectional flow in the heart is ensured because the heart contains valves that prevent backflow.

These valves keep the flow of the heart going in one direction (hence the name "unidirectional").</span>
3 0
3 years ago
X has successfully been transmitted to your body; you are now infected. All of the following among A-D are possible consequences
Natasha2012 [34]

The complete options to the question includes:

A.You never show any symptoms of disease and there is no sign of the pathogen in your body.

B.You exhibit mild symptoms of disease and the levels of the pathogen in your body are quickly reduced and eliminated.

C.You succumb to the worst effects of the disease but survive due to administration of antimicrobial agents.

D.You never show any symptoms of disease, but the pathogen persists in your body.

E.There are no exceptions, A-D are all plausible outcomes.

Answer: The correct option is A (You never show any symptoms of disease and there is no sign of the pathogen in your body).

Explanation:

Infectious diseases occurs when an individuals system is invaded by pathogenic microorganisms (virus,bacteria,fungi and parasite). These microorganisms may or may not cause disease but this depends on the healthy state of the host. They can also be transmitted from one person to another.

To explain the options why all are plausible outcomes when X has successfully been transmitted into the body except A includes:

B) option B can occur when the immune system of the host is able to combat X.

C.) Option C can occur when antimicrobial is given to suppress the activities of X

D) option D can occur when the individual may become an asymptomatic carrier of X. ( Individual shows no symptoms and signs of disease caused by X but the pathogen is still present in the body).

But option A is not possible as X must be present to show there was a transmission.

6 0
3 years ago
Explain how a crime lab could use paper chromatography to determine if lipstick found at a crime scene matched the lipstick of a
FromTheMoon [43]

Explanation:

The lipstick from the crime would be crushed and dissolved in an appropriate liquid solvent. The lipstick would then be placed in one of the ink spots on the starting / base line of the paper. Another spot would be created for the lipstick with which it is being compared with.

The paper chromatogram would then be placed vertically on a solvent that acts as the mobile phase. After some time, when the solvent reaches the solvent front  of the paper chromatography, by capillary action, the chromatogram can be removed and left to dry.

Bands will have appeared on the chromatography paper formed from the different components of the lipstick. The bands of the lipstick from the crime scene and that with which it is being compared to are observed. If the bands are all aligned, horizontally, then this means it is a complete match. The lipstick must have been the same used at the crime scene.

Learn More:

For more on paper chromatography check out;

brainly.com/question/13232854

brainly.com/question/364792

#LearnWithBrainly

7 0
3 years ago
what is a light year? Explain why light-years are used to measure distances and sizes in the universe
Neko [114]

A Light Year is a mesurement of 5.879e+12 miles Compressed into one unit of mesurement or a "Light Year"

Light Years are used in the measurement of the universe because, to put it simply, SPACE IS BIG! The use of Light Years (5.879e+12 miles) Breaks the observable universe down into manageable chunks for astrologists.

3 0
3 years ago
Which material has the highest thermal conductivity? Which material has the highest electrical conductivity? Explain why thermal
olga55 [171]

Answer:Silver

Explanation:Silver has the highest electrical conductivity of all metals. In fact, silver defines conductivity - all other metals are compared against it. On a scale of 0 to 100, silver ranks 100, with copper at 97 and gold at 76.

4 0
3 years ago
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