Respuesta :
Environmentalists are concerned about the introduction of genetically engineered trees because genetically engineered trees decrease the biodiversity that is present in the natural ecosystem. environmentalists are concerned that this can lead to the eradication of several variety of plants.
Answer: The environmentalists are concerned about the introduction of genetically engineered trees because their introduction into the environment could have unexpected interactions with the other plants and animals present in the ecosystem.
Other reason can be loss of native species. The native species that is originally present in the environment can be lost due to the introduction of genetically engineered plant species.