DEPARTMENT OF STATE
The United States Department of State (DOS), often referred to as theState Department, is the United States federal executive department<span> responsible for the international relations of the United States, equivalent to the foreign ministry of other countries.
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The Nile River enabled Egypt to flourish by providing Egypt with access to fertile soil, fishing, transportation routes, and also a source of power. The Nile and especially the Nile Delta was a very fertile region that allowed for Egyptian society to flourish and advance.
Answer:
the Christian belief is against animal experimentation because they believe human beings are stewards of creation; which means in general they are against ill-treatement of animals, keeping them locked up for lab, etc.
Atheists, theologians, believe thats its okay because animals don't feel pain, so they won't suffer. or another belief is that animals deserve to suffer, animal pain helps to educate humans & animals don't have an afterlife
Counterstains are chosen to be contrasting colors so that the primary satin target can be easily distinguished from the contrasting background.
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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?
Answer:
The cornea is an avascular tissue.
Explanation:
Since the cornea doesn't have any blood vessels the body's immune system is less likely to detect the foreign graft, and therefore, rejection is unlikely (although possible).
For the same reason, the lack of blood vessels that carry oxygen and nutrients will greatly slow the healing process. That is why this transplant can take so long to heal. For most people, it can take between 6 to 12 weeks to fully recover from the surgery.
