Answer:
Natural selection, population
Step-by-step explanation:
- Natural selection is a mechanism of evolution by which individuals of a population having a specific phenotype that is favored in a given environment can reproduce more and survive better and hence, the population of individuals with that specific phenotype increases with time.
- In the given situation it is given that the bees with a larger wingspan produced more offspring and hence, this shows that natural selection favored the bee with a phenotype of larger wingspan and thus, the population evolved with time.