5
Answer: BSet 3: Command of Evidence (Intermediate)
Explanation
PASSAGE
Invasive species often lack natural predators in their new environment, allowing their populations to grow unchecked. This can devastate native ecosystems. For example, the introduction of the brown tree snake to Guam led to the extinction of several native bird species.
What characteristic of invasive species allows them to dominate new environments?
A. They are smaller than native species.
B. They face fewer predators that would control their population.✓ Correct
C. They cannot survive outside their native habitat.
D. They improve biodiversity.
Detailed Explanation
The text says invasive species 'lack natural predators in their new environment, allowing their populations to grow unchecked. '
Key Evidence:
• "lack natural predators"
• "populations to grow unchecked"
Why others are wrong: A (Size is not mentioned.), C (They clearly DO survive outside their native habitat.), D (They 'devastate' ecosystems, reducing biodiversity.).