C. minor strains and sprain
The best answer from the choices given would be option A. The luminol test is capable of detecting bloodstains diluted up to 100,000 times. However, the correct value here is 300,000. The luminol test can still read up to that value. Luminol test has found some great application in crime scene investigations. It is able to find traces of blood even if someone has cleaned or removed stains.
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
<span>The usual answer (and correct) is to improve on the insulation, for example by covering the calorimeter, and using two cups, one inside the other.
Further improvements can be made
1) carrying out the experiment over as short a period of time as possible. reason; any calorimeter will loose heat, but the shorter the time allowed, the less heat will be lost.
2) Use a larger calorimeter, with greater volume of solution. reason; the greater the solvent mass requires more energy to obtain the same change in temperature. You get a smaller temp change for the same reaction, so less losses to the surroundings.
3) calibrate your calorimeter heat the same volume of pure water to a similar temperature as that which the reaction produces. Then determine the rate of heat loss over a period of time, say take temp every minute for 30 minutes, and plot a graph. This will give you a calibration curve that you can use to apply a correction for your calorimeter.</span>
The standard for the Sit and Reach test in the Health- Related Fitness Assessment in the course is 25 cm.
