Final answer:
During the domestication of plants, early humans selected traits that were desirable for their needs, such as features related to eating, mechanical traits, and chemical traits. They modified plants through selection and planting of seeds from plants with desirable traits. The domestication process involved the selection of traits that improved productivity, taste, or other features related to human needs and preferences.
Step-by-step explanation:
During domestication of plants, early humans selected traits that were desirable for their needs. These traits included features related to eating, mechanical traits, and chemical traits. For example, humans selected plants with large seeds to increase productivity. They also modified plants through selection and planting of seeds from plants with desirable traits, resulting in genetically modified crops.
Humans played a significant role in determining which plants would grow by selectively breeding and selecting crop varieties. They chose plants with favorable traits and perpetuated them. This was most rapid with annual plants that could be selected yearly. Genetic engineering of crops was achieved through the practice of collecting and planting seeds from plants with desirable traits. Overall, the domestication of plants by early humans involved the selection of traits that improved productivity, taste, or other features related to human needs and preferences.