Use the steps to answer the question.
1. Decreased oyster populations cause less filtration to occur.
2. Underwater plant populations decrease, causing less food
resources to be available.
3. Phosphorus pollution levels double.
Which sequence shows how the oysters' absence from an
ecosystem could lead to a decrease in biodiversity?
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A2-3-1
B 1-
1-3-25
2-1-3
• 3-1-2