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A2 biology evolution questions! please answer these questions,tomorrow is my exam

BURHAN UL HAQ

BURHAN UL HAQ

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EXPLAIN THE ROLE OF ISOLATING MECHANISM IN EVOLUTION OF NEW SPECIE?
WHY VARIATION IS IMPORTANT IN SELECTION?
HOW ALL ORGANISMS CAN POTENTIALLY OVERPRODUCE?

PLEASE WRITE EXPLAINED ANSWERS TO THESE QUESTION IN PARAGRAPH FORM.ACTUALLY I HAVE SEEN MARK SCHEME POINT ON THESE QUESTIONS BUT IM UNABLE 2 CONSOLIDATE THEM INTO A PARAGRAPH BECAUSE IM NOT MUCH CLEAR WITH THIS TOPIC..PLEASE HELP ME OUT..TOMORROW IS MY ALEVEL BIOLOGY PAPER 4 EXAM....THANKS!
 
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