How fast does evolution occur? immediately
from one generation to the next
after multiple generations​

Across a broad range of species, the research found that for a major change to persist and for changes to accumulate, it took about one million years.

Explanation:

:)

It can take millions of years

Explanation:

i think that the best answer would be c.

tell me if im wrong : )

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.