f is your awnser (hope u got it right)
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Claims what you are going to talk about
Answer: The sensual aspect of intercourse became more important.
Explanation:
There are different development stages in humans; from infant to adolescent to adulthood. The word "When humans begins to walk upright' shows the development stage of maturity. This usually takes place in adolescents. The sensual aspect of intercourse became more important. Sex is one of the drives that is behind every thought, feeling, and behavior.
Answer:
This phenomenon occurs because the expression is higher for genes encoding ribosomal proteins in order to balance the number of ribosomal proteins that are present in the cell with the ribosomal RNA level