Poem and the essay of what?
Here’s the answers, down there
Answer:
I think its C, I hope this is helpful
Explanation:
Due to the presence of antigens and antibodies, blood can only be donated by compatible donor types.
<h3>What is the ABO blood group?</h3>
There are four main human types of blood group which are; A, AB, B and O.
- A person who has the blood group A has antigen a.
- A person who has blood group B has antigen b
-A person who has blood group AB has both antigens a and b
- A person who has blood group O has neither antigen a nor b
People who have blood group O are universal donors while people who have blood group AB are universal recipients. Due to the presence of antigens and antibodies, blood can only be donated by compatible donor types.
Learn more about ABO blood groups:brainly.com/question/20335798
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The difference between comparative advantage and absolute advantage is that: A. Comparative advantage measures opportunity cost and absolute advantage measures efficiency.
<h3>What is a comparative advantage?</h3>
A comparative advantage can be defined as the ability of a business firm or country to produce goods and services at a lower opportunity cost than their rivals (competitors) or trade partners.
<h3>What is an opportunity cost?</h3>
An opportunity cost is also referred to as alternative forgone and it can be defined as the value, profit or benefits that are given up and forfeited by an individual or business firm, in order to choose or acquire something that is deemed most significant at a particular point in time.
In this context, we can infer and logically deduce that the difference between comparative advantage and absolute advantage is that comparative advantage measures opportunity cost and absolute advantage measures efficiency.
Read more on comparative advantage here: brainly.com/question/12291750
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