Arthropods. im not sure if that helps but, thats what they are called.
The answer is D: test possible choices and then avoid ones that are not desirable.
The process is called digestion
If the solution becomes transparent we could assume that ; The solution was hypotonic and the cells had burst.
<h3>Tonicity of red blood cells </h3>
To test for Tonicity of red blood cells, we placed the cells in a solution.When red blood cells are placed in hypotonic solution there is high rate of osmosis in which the solvent flows into the red cells placed in the solution the cells will experience a process known as Hemolysis and these cells do not diffuse light, the solution becomes a red transparent solution.
Hence we can conclude that If the solution becomes transparent we could assume that ; The solution was hypotonic and the cells had burst.
Learn more about Tonicity of red blood cells : brainly.com/question/6658551