Mention the secondary sexual characters in human males and females.
The male secondary sexual characters are the growth of hair on the chest, near the genitals, on the face in the form of beard and moustache, development of deep hoarse voice, etc.
The female secondary sexual characters are the development of breasts and mammary glands, axial and pubic hair, etc.
The female secondary sexual characters are the development of breasts and mammary glands, axial and pubic hair, etc.
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Describe double fertilization in plants.