Hi there the answer to this is A Directional Selection
Explanation:
Directional Selection is considered a 'positive' selection in which favored phenotypes is favored over other phenotypes causing the allele frequency to shift over time. This deals with the height from short to tall. Giraffes are a great example of directional selection.
Aluminium is a metal from group 13. ... The acids in the pickle would react with aluminium forming hydrogen gas in excess. This will deteriorate the quality and taste of the pickle and would also harm the human body if consumed.