Theory of macroeconomics which dominated the Reagan administration was supply-side economics. The answer to your question is D. I hope this is the answer that you are looking for and it comes to your help.
Option 1 is the correct answer.
The process that removes metabolic waste from an organism is called the excretory process. Through this process excretes are substances that are not used by the organism and thus must be excreted.
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A chain of amino acids folded and twisted into a molecule