Respuesta :

It's sort of like natural selection. If you are "fit" enough or you have the best traits to survive/adapt in your environment, you are considered one of the "fittest". But it doesn't only be determined by survival, but also by being able to reproduce. If you can survive and reproduce, you are golden!

e2020 answer:Individuals in a population must compete for limited resources.


If an organism is born with traits that help it survive and reproduce, it will likely have more offspring than organisms without those traits.


Beneficial traits can eventually spread throughout an entire population.