The answer to this question is:
<span>If Karen gets up early and studies three hours for her test, she is likely to get an A. If she sleeps in, she will probably get a C. What is the opportunity cost of sleeping in?
</span>"<span>three additional hours of study"
Hoped This Helped, </span><span>
Inquisitor
Your Welcome :)</span>
Animals that participate in the life cycles of pathogens and transmit pathogens from host to host are referred to as Vectors.
What are Vectors?
Vectors are animals that are responsible for transmitting or transporting pathogens from one individual to another. Vectors are not responsible for the cause of the disease, their only function is to spread the disease.
For example Mosquito helps in the spread of malaria parasites(plasmodium), they spread this disease from one human to another. Flea is also another vector that transmits/spreads plague.
Another example of a vector is the tsetse fly, this vector is responsible for spreading trypanosomes from animals to human. The tsetse fly is not responsible for causing the disease, their role is just to spread the disease.
Read more on Vector here;
brainly.com/question/28202241?referrer=searchResults
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Answer:
The correct answer is option a.
Explanation:
Opportunity cost can be defined as the cost of giving up or sacrificing the second-best alternative. In other words, it is the benefit that could have been earned if the alternative was not sacrificed.
Here, Joe bought gold coins for $1,000 and sold them at the same price. He could have instead invested in a certificate of deposit and earned a 3% interest rate. So here the opportunity cost of purchasing the gold coins is the interest earnings sacrificed.
Cotton should be the answer