Which distribution pattern in species can be considered the most easily measurable?

any abiotic or biotic factor in an ecosystem that causes a population's size to slow or decrease is a limiting factor.

what is the statement?

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .