Why should you first turn the coarse adjustment to move the stage down BEFORE you place a slide on the stage?

This is what i found on google“ the monomers combine with each other via covalent bonds to form larger molecules known as polymers. in doing so, monomers release water molecules as byproducts. this type of reaction is known as dehydration synthesis, which means “to put together while losing water. in the process, a water molecule is formed.” i hope this you

What are the options?

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A) the sequence of bases would halt the production of any proteins.