How do you think a single-celled organism developed into so many different forms of life?

Single-Celled organisms evolved to more complex organisms by the Darwin theory or natural selection. The environment chooses an organism over the other. That's why fish are devolved compared to us humans

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.

x would be the most and the least would be y because there are more fruit   and seeds than flock z has insects