Answer:
Billions
Explanation:
"Then each of these strands can be used to create two new copies, and so on, and so on. The cycle of denaturing and synthesizing new DNA is repeated as many as 30 or 40 times, leading to more than one billion exact copies of the original DNA segment."
"REPRODUCTIVE ISOLATION" needs to occur for speciation to happen.....
Answer:
Survey
Explanation:
Because if you think about it carefully you really cant observe it. Your main goal is to compare them and with that we need a survey to get the data from both sides. Leaving us with the Survey
I think the top three statements are the answer.
Ur intercostle muscle between ur ribs