What facts address the concern that Wolbachia-infected mosquitoes released into the environment will have a negative impact?

Question

What facts address the concern that Wolbachia-infected mosquitoes released into the environment will have a negative impact? 

(NOTE: Please change all question marks to checkmarks for correct answers or empty boxes for incorrect answers.)

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1. Wolbachia already occurs naturally in a significant number of insect species. Wolbachia already occurs naturally in a significant number of insect species.
2. Wolbachia kills any insect that it infects. Wolbachia kills any insect that it infects.
3. Wolbachia is not transmitted to animals. Wolbachia is not transmitted to animals.
4. Wolbachia is extremely rare in nature, so will hardly impact it. Wolbachia is extremely rare in nature, so will hardly impact it.
5. Volunteers who have been bitten by Wolbachia-infected bacteria do not become infected

Answer 1

(A) Wolbachia already occurs naturally in a significant number of insect species.

(B) Wolbachia kills any insect that it infects.

(C) Wolbachia is not transmitted to animals.

(D) Wolbachia is extremely rare in nature, so will hardly impact it.

(E) Volunteers who have been bitten by Wolbachia-infected bacteria do not become infected

(B) Wolbachia killing all infected insects would severely disrupt food chains in the ecosystem.