Place the following events in the correct sequence. A a variation is seen in differences among individuals B a mutation leads to a change in a trait C an advantageous trait persists throughout a population D natural selection allows the trait to increase in the population

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answer; ///as energy flows through an ecosystem,energy (decreases) at each

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.