What would to the population of bugs, deers, and scorpions if their source of food is wiped out?

They all would go extinct due to starvation and so would other animals and insect that have the same food source. If all the bugs food source was wiped out then their would be no pollination. If deer's food was all gone it would force the deer species to go extinct and that would also lead to the extinction of lions, tigers, wolfs, coyotes, bears, mountain lions, and jaguars.  

Explanation:

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