The right brothers had there flight there like the first airplane flight was there
Answer:
This is a blinded experiment.
Explanation:
In this type of study, none of the participants know about the variables that might affect the results, until the end. This is usually done to avoid a placebo effect. It is considered to be an important tool in several scientific areas, especially in medicine and psychology.
There is a type of study where not even the researchers know about the dependent variables. This is called a double-blind study.
If a typical adult loses more than twenty percent (20%) of their entire blood volume, significant alterations in vital signs will follow. So, 20% is the appropriate fill-in.
<h3>Which part of the blood transports oxygen to bodily tissues and wastes away from them?</h3>
The primary function of red blood cells, also known as erythrocytes, is to transport oxygen from the lungs to the body's tissues and carbon dioxide back to the lungs as a waste product.
Hemoglobin (Hgb) is a protein found in red blood cells that transports oxygen from our lungs to every part of our bodies.
Therefore, If a typical adult loses more than 1 Litre (approximately 2 pints) of blood, substantial changes in vital signs may ensue.
Check out the link below to learn more about blood volume;
brainly.com/question/17060989
#SPJ1
