C. used to produce other goods and services
The deepest layer in the wall of the heart is: Endocardium
<h3>Meaning of the Heart</h3>
The heart can be defined as an organ in the body whose primary duty is to pump blood to every part of the body to keep it working and functioning.
The heart is muscular and engages in more involuntary actions. It is very important that it continues to pump the blood for the body to remain alive.
In conclusion, The deepest layer in the wall of the heart is: Endocardium
Learn more about The Heart: brainly.com/question/26387166
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Answer:
Ethical
Explanation:
Ethics defines the correct rules of behavior or conduct necessary during research. The researcher has a moral responsibility to safeguard research participants from any sort of harm.
Four ethical principles to be followed while conducting psychological research:
1. To obtain informed consent.
2. Providing the right to withdraw anytime during the research.
3. Protecting confidentiality and anonymity.
4. To avoid deceptive practices.
"A. <span>Farmers made no profit of their own after paying off the land owner" is the best option from the list, although it should be noted that occasionally profits were made. </span>