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A colourful male guppy courting a female guppy: What are the influences of mate selection by female
Female scorpion Compsobuthus werneri carrying its young (white)
The ovaries. In addition to producing ova, the ovaries secrete the female sex hormones, estrogen and
How to combine approximate and exact numbers when considering significant digits
Position effect, as illustrated in the eye phenotype in two female Drosophila
The traditional human karyotypes derived from a normal female and a normal male