why male have arrow and female have plus in biology
Answers
The three standard sex symbols are the male symbol ♂ and the female symbol ♀, and the hybrid symbol ×. The male and female symbols are still used in scientific publications to indicate the sex of an individual, for example of a patient.
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Explanation:
There is a saying that Men ♂ are from Mars, and Women ♀ is from Venus.
Ironically the ♂ symbol denotes both the Male gender and Mars. The same saying points out that woman are from Venus, with the symbol for both female and Venus being denoted by the ♀ symbol.
They are often seen in use on profiles when users describe themselves, or on dating-specific sites where these are used to denote interest along with a magnitude of other abbreviations.
They have been along for much longer, and are fairly well known in most circles in certain western countries.
The two symbols are ancient, initially representing the Roman gods Mars (war) and Venus (love and beauty). They are said to symbolise a shield and spear (Mars) and a hand-mirror (Venus).
The horizontal bar was added to the 'handle' of the 'mirror' in the Middle Ages to make a Christian cross. The symbols were associated with the planets named after the gods, Mars and Venus. This meaning is still occasionally seen in astronomy, although the International
Astronomical Union now discourages use of the old planet symbols. In Medieval alchemy, the symbols were associated with the metals iron (used in weapons) and copper (used for mirrors in ancient times).
The symbols came to represent the male and female sexes, in botany and zoology as well as with people. They can also symbolise men and women, or masculinity and femininity. In everyday usage, men and women would normally being.