The series of changes that occur after a disturbance in an existing ecosystem is: *

a) ecological succession
b) secondary adaptation
c) biome factors
d) habitat modification

Which statement best describes ecological succession?

It is always caused by human intervention.

It occurs after a disturbance. **

It never occurs in a predictable pattern.

It is a series of rapid changes in an ecosystem.

Explanation:

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.