Question

_____ allowed humans to maximize caloric gain and spend less time foraging.

Answer 1

the answer is Eating vegetation.
Energi levels will keep decreasing as organisms move up in the food pyramid, and plants is placed at the very bottom of the pyramid.
If you notice, the type of food that give the most calories are always plant-based, such as potatoes, wheat, rices, etc.

Answer 2

implementing foraging allowed humans to maximize caloric gain and spend less time foraging. This meant that choice patches were preselected, they took into account the cost to get the food versus the benefit it would provide, foraging time was important, they implemented processing methods such as cooking