Differentiate between the following pairs on the basis of what is indicated in brackets:
Testosterone and estrogen (organ which secretes)
Testosterone | Estrogen |
1. It promotes the growth of secondary male characteristics such as mustaches and beards. | 1. It leads to the growth of secondary female sex characteristics, such as the formation of breasts. |
2. The testes (testicles) are the organs that produce sperm and secrete the hormone testosterone. | 2. The ovaries produce estrogen, which is a sex hormone |
3. As males become aged, testosterone levels drop, | 3. While estrogen levels rise as females age |