There are, as yet no vegetarian types or ecosystems whose study has been perfected to the extent that they no longer ______ ecologists. - IQ786

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There are, as yet no vegetarian types or ecosystems whose study has been perfected to the extent that they no longer ______ ecologists.

There are, as yet no vegetarian types or ecosystems whose study has been perfected to the extent that they no longer ______ ecologists.

Interest

Require

Challenge

Hinder

Explanation