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प्रश्न
Mention any two changes that are common to both boys and girls in early teenage years.
उत्तर
Two changes that are common to both boys and girls in early teenage years are:
- Thick hair growth in armpits and genital area.
- Skin becomes oily, may result in pimples.
संबंधित प्रश्न
Name the human male reproductive organ that produces sperms and also secretes a hormone. Write the functions of the secreted hormone.
What are sexually transmitted diseases?
What is the main difference between sperms and eggs of humans? Write the importance of this difference.
The site of maturation of human sperms is the
What is puberty? Who attains puberty at an earlier age in human beings : male or female (boy or girl)?
The germ cell A produced by a person X is round in shape and it fuses with another germ cell B having a long tail and produced by a person Y. The fusion of A and B produces a new cell C. The cell C divides repeatedly and grows inside the organ D of person X to form E in which the body features of the unborn baby are not much developed. E grows further to form F in which the various body features of the unborn baby (like hands, legs, head, eyes, and ears, etc.) can be identified. F grows further and ultimately forms a baby. What are A, B, C, D, E and F? Out of the two persons X and Y, which one is male and which one female?
Write the functions of secretions of prostate gland and seminal vesicles in humans.
What is reproduction? List its two types.
Give appropriate term of the following:
The onset of reproductive phase in a young female.
Choose the correct answer:
First menstrual cycle is known as ___________
