3 is a
7 is b hope I helped
For the answer to the question above, the
<span>Der Ring des Nibelungen (ring cycle) last about <u>"18 hours."</u></span>
this is a cycle of four German-language epic music dramas composed by Richard Wagner.
I hope my answer helped you. Have a nice day!
Answer:
The technique is known as "staining"
Explanation:
Staining is a technique used to enhance the color contrast of the microscopic samples when observed in the microscope especially in the microbiological samples.
In the given question, when the staining technique is used to identify the sample then staining procedure is followed in a process where the samples can be identified on the basis of the color contrast which is in the case of gram staining.
The gram staining is used to identify the bacteria on the basis of color as the bacteria which appear blue in color are called gram-positive and the bacteria which appear red in color are gram-negative bacteria.
Thus, staining is the correct answer.
