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attashe74 [19]
3 years ago
13

What is placebo and why is it used in some experiments

Biology
2 answers:
mote1985 [20]3 years ago
8 0
A placebo is basically an alternative medical treatment (e.g. pill)  that doesn't <span>contain an active substance meant to affect health. So it isn't actually solving anything but it can have the placebo effect. Which can be assumed is the reason it is sometimes used in experiments. </span>
Hoochie [10]3 years ago
6 0
A placebo is kind of a "fake" treatment but, typically the person receiving a placebo is unaware it has no medical effect on them so they believe they are feeling better. For example, a lot of anxiety meds are placebos and people don't know so their brain tricks them into thinking they are feeling less anxious. This could be used in experiments where a group believes they are affected to see how they react
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The oil extracted through these methods is referred to as "green crude" and it's not ready to be used as fuel until it undergoes another process called transesterification. This step adds more substances to the mix, including alcohol and a chemical catalyst that causes the alcohol to react with the oil. This reaction creates a mix of biodiesel and glycerol. The final step in processing separates the glycerol from the mixture and leaves a biodiesel that's ready to be used as fuel. Maybe one day it really will be easy being green.


You can read more about it here https://auto.howstuffworks.com/fuel-efficiency/biofuels/convert-algae-to-biofuel.htm

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2 years ago
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