Answer:a
Explanation: because naturally it occurs anytime it wants to
<span>"Hypothesis, because tentative means unsure."
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the only reason i am wasting one of the two answers your post is allowed to get is because its been 3 hours and no one has answered yet.
Where do you go to school? I think it is very coincidental that you have the exact same question i do, and you had the question exactly when I got the question...about 3 hours ago. Now it IS a curriculum so its not that weird, but by any chance are you in K12? 8th grade?
Natural selection allows nature to chose which species survives. Only the fittest get to pass on their genes. And by fittest i mean the ones that are better adapted to the environment.<span />