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Afina-wow [57]
3 years ago
7

Erika wants to experiment with sugar cubes. which of the following causes a sugar cube to only change physically, not chemically

? burning the sugar cube with a match chewing the sugar cube and digesting it breaking the sugar down into different substances using sulfuric acid crushing the sugar cube and dissolving it in water
Health
1 answer:
Natasha2012 [34]3 years ago
7 0
Dissolving the sugar cube in water is a physical change. It doesn't alter the sugar's chemical structure like burning it or breaking it down with acid.
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In the term cystectomy, what does the word part "-ectomy " mean
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One type of personal health moniter can predict the amount of calories a person burns. Is this true or false?
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_____ bones are found in the extremities. (arms and legs)
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Which of the following BEST describes what alveoli are? A. They are the smallest tubes in the respiratory system. B. They have a
serious [3.7K]

Alveoli is the smallest part of the respiratory system. The best description about it is “they are the smallest tubes in the respiratory system”.  

EXPLANATION

Alveoli’s function is to exchange oxygen and carbon dioxide. Thus, it becomes an important part of the respiratory system. Alveoli’s shape is like tiny balloon-shaped. Its location is at the very end of the respiratory tree. It is arranged in clusters which are throughout the human’s lungs. Alveoli also can be said as the endpoint of the respiratory system. Without alveoli, a human cannot breathe normally.  

Due to the important function of alveoli, here are some medical conditions that people have to be aware of:

• Emphysema

• Pneumonia

• Tuberculosis

• Bronchioloalveolar carcinoma

• Acute respiratory distress syndrome

• Respiratory distress syndrome

• Pulmonary edema  

We also have to be aware of the effect of tobacco and smoking because these things can affect the function of alveoli. Tobacco and smoking cause the damage, right down to the molecular level. It will disrupt our body’s ability to repair itself. In a serious condition, it will lead to an infection or trauma. The effect of tobacco and smoking also cause a risk to human’s lungs. The damage of the alveoli will cause human’s lungs exposed to the toxic fumes.

LEARN MORE

If you’re interested in learning more about this topic, we recommend you to also take a look at the following questions:

1. Which sequence correctly shows the path of carbon dioxide during respiration? brainly.com/question/11954250

2. What is the correct order from the largest structure to smallest within the lungs? brainly.com/question/1621897  

KEYWORDS: Alveoli, lungs

Subject: Health

Class: 10-12

Subchapter: Alveoli  

5 0
2 years ago
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2. In the world today, how many people are estimated to be infected with the HIV virus? A. O 27.4 million B. O 87.8 million C. O
Semmy [17]

Answer:

33.6 million

Explanation:

According to UNAIDS : Number of People with HIV—There were approximately 38 million people across the globe with HIV/AIDS in 2019. Of these, 36.2 million were adults and 1.8 million were children (<15 years old).

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