Final answer:
The Neolithic farmer would likely save seeds from 'b) A large, sweet squash' due to its desirable taste and larger yield potential. Selective breeding even during Neolithic times favored plants with traits beneficial for human consumption and cultivation success.
Step-by-step explanation:
A Neolithic farmer deciding which squash seeds to save for the next planting season would most likely choose seeds from a plant that produced not only a desirable fruit but also a successful harvest. In this case, the preferred choice would be 'b) A large, sweet squash' because these qualities would have been more favorable for consumption and nutrition, leading to a stronger preference for plants with these characteristics. Sweetness usually indicates a higher sugar content which would be a valuable source of energy, while the large size suggests that the squash provides more edible material and might be the result of successful cultivation practices.
Cultivation practices since the Neolithic era have often focused on selective breeding to enhance desirable traits, hence why seeds from larger, sweeter fruits would have been chosen over a smaller, bitter counterpart. Desirable traits would have been selected over generations, leading the domesticated varieties to differ from their wild ancestors. Literature suggests that yellow squash that is resistant to various viruses have been developed, highlighting the importance of disease resistance as well. However, in the Neolithic era, such advanced genetic manipulation was not possible, so the selection would have been based on the observable qualities of the squash.