Why are environmentalists concerned about the introduction of genetically engineered trees? a. genetically engineered trees are not regulated. b. genetically engineered trees could have unexpected interactions with organisms of natural ecosystems. c. genetically engineered trees decrease the biodiversity of natural ecosystems. d. all of the above

The correct answer is option B, Genetically engineered trees could have unexpected interactions with organisms of natural ecosystems.

Explanation:

There are several ethical issues associated with the genetically modified plants as it is believed that these can hamper the natural and anthropogenic ecosystems. It is also believed that in case for the sake of time being these genetically modified (GM) trees may not produce any impact on the ecosystem at once but may render to harmful conditions in future which may become uncontrollable at that time. The researchers are not very clear on how GM trees are going to interact with the ecosystem.

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.