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प्रश्न
Define the following:
Sexual reproduction
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उत्तर
Sexual reproduction: It is the type of reproduction in which the offspring are formed after the fusion of gametes.
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संबंधित प्रश्न
What is the main difference between sperms and eggs of humans? Write the importance of this difference.
Give biological explanations for All the food chains begin with green plants.
Which one of the following best describes the function of the umbilical cord? It :
(a) feeds the embryo with digested substances.
(b) conveys nutrients and wastes to and from the embryo respectively
(c) removes waste matter from the embryo to the mother's blood.
(d) supplies oxygenated blood from the mother to the embryo.
The normal body cell of an organism contains 28 pairs of chromosomes. The number of chromosomes present in its germ cell will be
(a) 28
(b) 14
(c) 56
(d) 42
Diagram shows the reproductive system of female human beings:
(i) Name the parts numbered 1 to 14.
(ii) Normally, after how many days does an ovary release an egg?
(iii) Where are the sperms released during coitus?
(iv) What is the role of sperms after their ejaculation in vagina?
(v) What is the function of the organ numbered 5?
(vi) What is the gestation period in human?
Name the following:
Male and Female organs on specific individuals.
Give the functions of the following:
Vagina
Identify the given diagram.
Name the parts 1 to 5. 
Give Technical Term:
What are the age restrictions for marriages by law for boys and girls in India?
Which of the following is an example of a secondary sexual characteristic in humans?
