Answer:
The ecologist can develop a sweet, cold-resistant carrot through genetic engineering.
Step-by-step explanation:
To create a sweet and cold-resistant carrot, it will be necessary for the ecologist to extract the DNA from the southern carrot and the northern carrot, then it is necessary to do a sequence of the two DNAs, so that the ecologist identifies the region of the DNA , responsible for the genes that determine the characteristics that make one carrot sweet and the other resistant to cold.
Once these genes are found, it is necessary that there is a cut in the DNA of the genaras, in the regions where these genes are found. After that, it is necessary for these genes to be introduced into the DNA of a carrot plant. This introduction is made through Genetic Transformation Techniques, where the isolated genes are inserted into cells of this plant.
This cell (which contains the "sweet" and "cold resistant" genes) will be given all the requirements for it to multiply, giving rise to other cells with these genes, which will give rise to other cells that will continue to multiply until originate a carrot plant with the genes "cold resistant" and "sweet" and will form carrots with these genes.