Answer:
five billion, six hundred and eighty two million, four hundred and fifty thousand and three.
Answer:
a. sexual dimorphism was developing over time in these species.
Explanation:
Sexual dimorphism refers to the presence of observable distinct phenotypic differences between the males and females of the same species. In humans, adult males have a larger larynx which is responsible for their deep voice than females. Females have a relatively smaller larynx. Therefore, a trend toward decreasing larynx size in adult females and increasing larynx size in adult males in fossils represents the development of sexual dimorphism in these species.
Peppered moths. They were initially light coloured but the industrial revolution came and cover the trees with soot or dust, darkening the tree barks. The light coloured moths were preyed on easily so more dark coloured moths who were able to camouflage survived. The darker coloured moths has better reproductive success, passed on the favourable alleles to their young, over generations, increase the frequency of dark coloured allele in the gene pool.
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