Hello!
Could be either:
<span>The action or process of observing something or someone carefully or in order to gain information.
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Or
<span>A remark, statement, or comment based on something one has seen, heard, or noticed.
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And in Science:
<span>An 'observation' in the scientific sense, is when you make a measurement or evaluation of some sort. You would usually make a note of how something has changed sine the previous ovbservation. Maybe the temperature has changed: gone up one degree; or a crystal has grown: maybe it is now .1 centimeters longer.
"Observations" usually implies that you are watching some process, and either measuring or noting the change that has taken place. usually you will also want to note the time of the observation, so that you can have an idea of how quickly (or slowly) the changes are occurring.
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Hope this All Helps (Hope it did)! Have A Wonderful Day! :)
Answer:
1.Make an observation.
2.Ask a question.
3.Form a hypothesis, or testable explanation.
4.Make a prediction based on the hypothesis.
5.Test the prediction.
6.Iterate: use the results to make new hypotheses or predictions.
Explanation:
Based on the CDC guidelines a person with a CD4+ cell count between 200-400 is regarded as being in <u>the second stage</u> of the HIV infection.
Acquired Immunodeficiency Syndrome
Acquired immunodeficiency syndrome (AIDS) is a condition caused by HIV (human immunodeficiency virus). AIDS is a chronic disorder and can become life-threatening for the infected person. The HIV viruses reproduce inside the host and while doing so they destroy the CD4+ immune cells which reduce the person's ability to fight against other diseases.
CD4+ cell count and AIDS
According to the CDC (U.S. Centers for Disease Control and Prevention), HIV infection is categorized into different stages based on the number of CD4+ cells.
- Stage 1: - CD4+ cell count is more than 500 per microlitre. There are no symptoms or AIDS-related conditions.
- Stage 2: - CD4+ cell count is more than 500 per microlitre. There are no symptoms or AIDS-related conditions.
- Stage 3: - The CD4+ cell count falls below 200 and AIDS-related symptoms and conditions are present.
Learn more about HIV infection here:
brainly.com/question/13662165
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There are many biotic elements in a rainforest biome. But the most obvious one is trees, because biotic means living and trees are living.
