B. sexual selection, which alters allele frequencies in the gene pool.
Your BMI (body mass index) is 21.6, which is a normal BMI. So, you are NOT overweight.
Answer:
Though huge, the Pacific is getting smaller. It was once much wider when all the continents were joined together in the supercontinent, Pangea. The Pacific ocean basin is getting smaller because the Atlantic Ocean is opening and North America and South America are moving westward.
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