Scientists Evaluating the Cretaceous Mass Extinction Have Concluded That

question 19

Multiple Choice

Scientists evaluating the Cretaceous mass extinction have concluded that

• A) an asteroid impact was probably the triggering event for the extinction.
• B) climate change would not have been involved in producing the extinctions.
• C) ecological factors such as disease and competition probably caused the dinosaurs to go extinct.

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Definitions:

Captive Populations

Groups of people who are not free to leave or refuse participation, often used in contexts of research or incarceration.

Morally Legitimate

Morally legitimate refers to actions or policies that are considered acceptable or justifiable according to ethical standards and moral principles.

Paul Ramsey

An American ethicist known for his work in medical ethics, including issues of life and death and bioethics.

Research Subjects

Individuals who participate in scientific studies, often to test new treatments, drugs, or to understand human behavior and diseases better.