Which cell is the precursor to eukaryotic in evolution of the cell

The first organisms to inhabit Earth were prokaryotes that lived 3.5 billion years ago. prokaryotes are well organised, achieving all of an organism’s life functions within a single cell. These were the precursors to eukaryotic cells

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.