Answer:
I think no 3 will be the answer.
Answer:
Genetic variations that alter gene activity or protein function can introduce different traits in an organism. If a trait is advantageous and helps the individual survive and reproduce, the genetic variation is more likely to be passed to the next generation (a process known as natural selection).
Explanation:
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They are found in the center of the osteon within a long opening called the Haversian canal.
False, some galaxy's are moving closer and in a billion years the Milky Way and the Andromeda galaxy will collide