Answer: A mollusk accidentally imported from Europe. They clog pipes and water ways.
Explanation:
Answer: I would go with B. Here’s why: An index fossil is usually easily recognizable, and underwent a wide geographic distribution. What leads me to believe B is the correct answer, is because it’s something that existed “ all over the world”.
Answer:
We use them for the meat as food and the shells as decorative items
Explanation:
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