"Struggle for existence and survival of the fittest" is the principle of evolution among the choices given in the question that <span>are represented in this example. The correct option among all the options that are given in the question is the second option or option "B". I hope that the answer has helped you.</span>
The correct answer is gamete.
This is true, comets have long, indefinite life spans.
Hope this helps:)
Evidence, testing, and observations
Other physicists would probably perform it to test if his conclusion from the data was correct, and to test to see if the data is consistent with more than one trial.