Physical isolation of population
The most important single factor necessary for creating diversity of life is genetic variability. This variability allows for the adaptation of species to different environments, leading to the evolution of diverse life forms.
it is used in the binomial nomencleature
So scientists can know for certain if the factor they're testing affects the outcome and isn't caused by another factor which isn't being measured. It elimiantes the chance of another factor affecting the outcome of an experiment.
a postzygotic barrier
The most important factor in creating a revolution is widespread discontent among the population leading to a desire for change. This can be triggered by various social, economic, or political grievances that fuel a collective movement for revolution. Additionally, effective leadership and organization are crucial in mobilizing and sustaining the revolution.
Scientists refer to Mendel's factor as Genes?? I Guess. . . . ..
if groups of scientists didn't work together they would go at different speeds and probably get different results need to describe it completely so that when they use that same factor in an experiment they have the data.
manipulated variable
Just think about this : Imagine scientists studying plants and animals of the past WITHOUT fossils. The slightest clue found on fossils leads scientists towards a conclusion that would be impossible to get without a mineralized remains of a dead organism, that we call fossils. The most important factor is the visualization of that animal or plant's shape. The foot's shape, number of bones, of a fossiled animal may give to scientists a clue on how that extinct animal could run away from predators and so on. The slightest evidence is important to reach on a conclusion when a fossil is being studied, which would be impossible without them. In other words, fossils are the linkage with the pass
One factor that is not necessary for an ecosystem to be self-sustaining is the presence of a specific keystone species. While keystone species can play important roles in maintaining ecological balance, ecosystems can still function and sustain themselves through other species and interactions. Self-sustainability primarily relies on energy flow, nutrient cycling, and biodiversity, rather than the presence of any single species.
limiting factor
Reproductive Isolation