It depends on what you want to say, I can translate for you on what you want to say if you want?
Answer:
this pic is really blur i can't see it sorey
Changes in genes, mutations, are mostly neutral to an organism and result in no benefit or harm. A piece of the code could be repeated and result in no advantageous or harmful result. A positive mutation could be the result of letters switching. A positive mutation could be camouflage. A negative mutation could be the result of some code being cut. A negative mutation could be a blindness trait.
Answer: n'a pas regardé
Explanation: The passé composé is formed using a helping verb, which in most cases is avoir, and a past participle. In this case, the helping verb is avoir and the past participle is regardé. Negation also comes into play here because you're writing a negative sentence. Remember the double negation in French, which means you have to have both "ne" and "pas" if you're going to put something into the negative.
Going back to the passé composé, "regarder" would become "a regardé", using the helping verb and participle to form that. From there all you have to do is put the double negative on it. Remember that the double negative goes around the verb. Using that, you end up with "n'a pas regardé".
