Answer:
-There is a variation in traits.
-The environment cannot support unlimited populations of organisms.
there is heredity.
-The trait that allows the organism to have more offspring will become more common in the population of organisms.
I’d say it’s the first one and it’s not even the first one probably than the last one
True- it's not good if the scientist changes the outcome and reads data with a bias because then it's not 100% honest.
