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Author Question: food chain (Read 751 times)

pratush dev

  • Sr. Member
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  • Posts: 321
on: Dec 7, 2014
A food chain comprises a number of trophic levels. Which is the trophic level vulnerable to extinction?


Celeste

  • Hero Member
  • Posts: 588
Reply #1 on: Dec 7, 2014
I believe it's all but the primary producers. Do you have a list of options?


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