Final answer:
Strawberry seeds are found on the outside of the fruit and are part of individual small fruits called achenes. Strawberries are aggregate fruits composed of multiple ovaries of one flower. The plant also propagates through stolons, which are horizontal stems that can root and form new plants.
Step-by-step explanation:
The seeds of a strawberry are on the outside of the fruit (the small hard inner part of a fruit that can grow into a plant). Strawberries are a type of aggregate fruit, in which the fruit develops from multiple ovaries of a single flower. The 'seeds' visible on the outside of a strawberry are actually small individual fruits in themselves, each called an achene, and they contain the true seeds within them. These achenes are an example of how fruits can evolve features that protect and aid in the dispersal of the seed; in the case of the strawberry, this is typically done by animals who eat the fruit and then excrete the seeds elsewhere.
Strawberry plants also propagate through stolons, horizontal stems that run across the ground. When these stolons take root, new plants are formed, contributing to the spread of the strawberry plant. This dual strategy of reproduction, utilizing both seed dispersal through the fruit and vegetative propagation through stolons, exemplifies the ingenuity of plant survival and proliferation mechanisms.