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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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Select all that describe features of prokaryotes.
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Answer:

all of them except the organelles as they don't have organelles

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Explanation:

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3 years ago
Garbage buried in an engineered and sealed landfill can still contain all of the following except
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C- groundwater

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A plant cell is surrounded by rigid cell wall whereas animal cell does not have cell wall. Presence of a large vacuole in plant cell, which is small in animal cell. Plant cells are larger than animal cells. Plant cells have plastids whereas animal cells do not have plastids.

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2 years ago
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Why don't people's cells starve from lack of glucose while they are fasting​
GenaCL600 [577]
Answer:


Fasting can definitely raise blood glucose. This is due to the effect of insulin falling and the rising counter-regulatory hormones including increased sympathetic tone, noradrenaline, cortisol and growth hormone, in addition to glucagon. These all have the effect of pushing glucose from liver storage into the blood. This is normal. If you are not eating, you want to use some stored glucose. The question is this – if you are not eating, and your blood glucose went up, where did that glucose come from? It can only have come from your own body (liver). So, it’s a natural phenomenon, and the fasting now allows your body to use some of the glucose for energy.


6 0
2 years ago
What is population density? answers are A. the number of organisms of a species
Harlamova29_29 [7]

Answer: Option C.

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Explanation:

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Population density =number of organisms ÷ unit of land area.

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