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An ecosystem is an example of a(n)_______________ system since energy and matter are freely exchanged at its boundaries.
Alzheimer's Disease
A progressive neurodegenerative disorder that causes memory loss and cognitive decline due to the death of brain cells.
Leading Cause
The primary or most significant reason behind an event, condition, or outcome.
2001
2001 is a year that is often noted for significant events globally, such as the September 11 terrorist attacks in the United States, which had profound impacts worldwide.
Social Causes
Underlying issues or factors in society that lead to phenomena or problems affecting individuals or groups.
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