Perennial Shrubs I know it is late.
Cystic fibrosis affects more than 200,000 people in the United States so false.
Answer:
Its A . serve as a food source for other organisms .
Explanation:
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Answer:
Certain fossils, called index fossils, help geologists match rock layers. To be useful as an index fossil, a fossil must be widely distributed and represent a type of organism that existed for a brief time period.
Answer:
I think its the third one :)
Explanation:
hope this helped :))