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garri49 [273]
3 years ago
9

I will give 10 points please help!!! Highly developed economies are dominated by jobs in the __________ sector. A. primary B. se

condary C. tertiary D. quaternary
Social Studies
1 answer:
melamori03 [73]3 years ago
8 0

Answer:

C. Tertiary

Explanation:

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Why is it essential that the primary stain and counterstain be contrasting colors when performing the gram stain?
icang [17]

Counterstains are chosen to be contrasting colors so that the primary satin target can be easily distinguished from the contrasting background.

<h3>What is counterstain?</h3>
  • A counterstain is a stain that contrasts with the primary stain, making the stained structure visible under a microscope.
  • A counterstain is a color that is introduced into specific cellular structures in order to create a contrast to the colored enzyme substrate.
  • Counterstaining improves vision and target localization, allowing for a more accurate assessment of morphology and cell organization within a tissue section.
  • Counterstains are intended to be opposing colors in order for the principal satin target to stand out against the contrasting background.
  • The counterstain utilized in this procedure is Safranin.
  • Gram staining is used to differentiate Gram-positive from Gram-negative bacteria.

Therefore, counterstains are chosen to be contrasting colors so that the primary satin target can be easily distinguished from the contrasting background.

Know more about counterstain here:

brainly.com/question/14930810

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The correct question is given below:

Why is it essential that the primary stain and the counterstain be of contrasting colors?

3 0
1 year ago
What was one difference between the Articles of Confederation and the Constitution?
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Answer:

A

Explanation:

Because during the Articles if Confederation they had a weak government which contains one branch

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If you are made up of prokaryotic cells what features will you process?​
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if we are made up of prokaryotic cell we would have extra layer of protection.ans it also helps to maintain cell shape .

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How did sugar production affect the colonization of the americas?
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increased need for slaves

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sugar needed a lot of people to help harvest so more slaves were brought over to be forced to work. Sugar was the principle commodity for for stimulating the American slave trade

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