Question

after earth began to warm, some people in what is now the united states also began growing wild plants for food, instead of only hunting and gathering. over time, they began domesticating plants, such as squash and sunflowers. look at the definition of domesticate /duh-mes-tih-kayt/ verb to breed a wild species in order to change it so that it benefits humans
sort the plants by whether they are domestic or wild species.
wild species
squash that has small seeds and can be poisonous
sunflowers with small seeds
sunflowers with big seeds full of healthy oils to eat
domestic species
squash that has big seeds and is soft and sweet

Explanation:

To sort the plants, we need to understand the difference between domestic and wild species. Domestic species are changed to benefit humans. The squash with big seeds that are soft and sweet is domestic (as it's been modified for human consumption - big, soft, sweet seeds are better for eating). The squash with small seeds that can be poisonous is wild (natural, not modified for human benefit in a positive edible way). Among sunflowers, the one with big seeds full of healthy oils to eat is domestic (modified for human use - oil for consumption). The sunflower with small seeds is wild (natural, not enhanced for human benefit as much as the big - seeded, oil - rich one).

Answer:

Wild species: squash that has small seeds and can be poisonous; sunflowers with small seeds.
Domestic species: squash that has big seeds and is soft and sweet; sunflowers with big seeds full of healthy oils to eat.