Answer: B) use of indentured servants, and later enslaved Africans, for agricultural labor
Explanation:
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Its led to the use of indentured servants, and later enslaved Africans, for agricultural labor.
The growth of tobacco in the Virginia colony was brought by John Rolfe in the 1600s.
John Rolfe is the first person to plant tobacco in Virginia.Later on, the Tobacco cultivation formed the basis of the colony's economy because its generate revenue from the cash crop.Proceed from this crop was used to purchase the indentured servants and slaves to cultivate it.In conclusion, the introduction of tobacco led to use of indentured servants, and later enslaved Africans, for agricultural labor.
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What ethical questions does psychological research raise?
Earlier in psychology history, many experiments were performed with highly questionable and even outrageous violations of ethical considerations. Milgram's infamous obedience experiment, for example, involved deceiving human subjects into believing that they were delivering painful, possibly even life-threatening, electrical shocks to another person.
These controversial psychology experiments played a major role in the development of the ethical guidelines and regulations that psychologists must abide by today. When performing studies or experiments that involve human participants, psychologists must submit their proposal to an institutional review board (IRB) for approval. These committees help ensure that experiments conform to ethical and legal guidelines.
Ethical codes, such as those established by the American Psychological Association, are designed to protect the safety and best interests of those who participate in psychological research.1
Such guidelines also protect the reputations of psychologists, the field of psychology itself and the institutions that sponsor psychology research
Loxodonta africana is:
1. A nonnative species
2. An indicator species
3. A keystone species
Answer:
A indicator species
A non-native species