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प्रश्न
Define the term puberty.
उत्तर
Puberty is the process of physical changes by which a child’s body matures into an adult body capable of sexual reproduction to enable fertilization.
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संबंधित प्रश्न
What is the main difference between sperms and eggs of humans? Write the importance of this difference.
Why are testes located outside the abdominal cavity? What is responsible for bringing about changes in appearance seen in boys at the time of puberty?
State whether human beings reproduce by sexual method or asexual method.
Which part of the human body passes sperms from a man to a woman?
What is meant by implantation?
X and Y are two human beings. The organ A in the reproductive system of X releases a mature gamete B once a month which goes into a tube-like structure C through a funnel-like opening. The organ D in the reproductive system of Y makes and releases gametes E which pass through a duct F and are introduced by an organ of Y, into the body of X. B and E fuse together in C to form a new cell G. The cell G divides repeatedly to form a ball of cells H which gets embedded in the lining of organ I of reproductive system of X where it grows and develops into a baby.
(a) Name (i) organ A, and (ii) gamete B.
(b) Write two names of tube-like structure C.
(c) Name (i) organ D, and (ii) gamete E.
(d) Write two names of duct F.
(e) Name (i) cell G (ii) ball of cells H, and (iii) organ I.
(f) Out of X and Y, which one is (i) male, and (ii) female?
List and explain in brief three methods of contraception.
Choose the Odd One Out:
Given below is a group of terms. In the group, one pair indicates the relationship between the two terms. Rewrite and complete the second pair on a similar basis.
Female gonad : Ovaries :: Male gonad : ______.
