Environmental Science
What is the official name of IUCN?

United Nations Environment Programme
World Wide Fund for Nature
United Nations Educational, Scientific and Cultural Organization
International Union for Conservation of Nature and Natural Resources

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Environmental Science
Which one is true?

symbiosis when neither population affects each other
commensalism when the interaction is useful to both the populations
symbiosis when the interaction is useful to both the populations
commensalism when none of the interacting populations affect each other

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