A. Objective The learners should be able to investigate changes that happen in the absence of oxygen. B. Materials ● fire. Activity: TITLE: ABSENCE OF OXYGEN Jar with cover (Jar A) Jar without cover (Jar B) 2 same sized candle (small) Match or lighter Timer Ruler C. Precautionary Measure Remember to handle match or lighter carefully and don't play with it for it can cause D. Procedure 1. Label the jar with cover with Jar A and the jar without cover as Jar B. 2. Light the candles with a match and put the candles in each jar. 3. Record the time when the candles are lighted and the time when the light was put off. 4. Cover the Jar A and observe what will happen. 5. Measure the length of the candles after the flame was put off. 6. Record your findings on the chart below. Jars JAR A JAR B Time of the flame was put off Length of the candle after burning Answer the following questions: 1. Which of the 2 jars was the candle's flame put off first? 2. Which of the two candles has the shortest size? 3. What happen, when you cover the Jar A? 4. When the lighted candle in Jar A was covered, the flame was put off, what is the reason why the candle's flame did not continue to burn? 5. What are the 3 main components in combustion? Doss​

explain how scientist and medical expent study very small organisms​

Answer:

Scientists and medical experts use specialized tools like microscopes to study very small organisms.

Explaination:These instruments magnify the organisms, allowing detailed observation of their structure and behavior. Additionally, techniques such as cell culturing and molecular biology enable scientists to conduct experiments and analyze the genetic and biochemical aspects of these organisms on a microscopic scale. Advanced imaging technologies, like electron microscopes, provide even higher magnification for detailed examination at the subcellular level.

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Answer & Explanation:

Scientists and medical experts study very small organisms, such as bacteria, viruses, and protists, using a variety of techniques and tools. These organisms are often too small to be seen with the naked eye, so specialized equipment is necessary to study them.

One of the most common tools used to study small organisms is a microscope. Microscopes allow scientists to magnify the image of these organisms, making it possible to see their structures and behaviors in detail. There are several types of microscopes, including light microscopes, electron microscopes, and scanning probe microscopes, each with different capabilities for studying small organisms.

In addition to microscopy, scientists and medical experts also use techniques such as culturing and staining to study small organisms. Culturing involves growing organisms in a controlled environment, such as a petri dish, in order to observe their growth and behavior. Staining is a method used to highlight specific structures within the organisms, such as their cell walls or nuclei, making them easier to observe.

Furthermore, molecular techniques, such as polymerase chain reaction (PCR) and DNA sequencing, are also used to study the genetic makeup of small organisms. These methods allow scientists to identify and analyze the DNA and RNA of the organisms, providing valuable information about their genetics and evolutionary relationships.

Overall, the study of very small organisms involves a combination of microscopy, culturing, staining, and molecular techniques, all of which allow scientists and medical experts to gain a deeper understanding of these important organisms.