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प्रश्न
Give Technical Term:
What are the age restrictions for marriages by law for boys and girls in India?
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उत्तर
For boys 21 years; for girls 18 years
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संबंधित प्रश्न
Describe in brief what happens to the zygote after it gets implanted.
Give appropriate biological/technical terms for the following:
The kind of twins formed from two fertilized eggs.
fill in the blanks with suitable functions: Seminiferous Tubule and _____
What are the female sex cells in humans called?
When a fertilised egg E formed in the oviduct of a human female divides repeatedly to form an embryo, the embryo gets implanted in the thick and soft lining of the uterus. After this a disc-like special tissue T develops between the uterus wall and embryo through which all the requirements of the developing embryo (and foetus) are met from the mother's body, The embryo is connected to the tissue T through a string like structure S.
(a) What is the other name of fertilised egg cell E?
(b) What is the name of tissue T?
(c) Name the string-like structure S.
(d) Name two substances which pass from mother's blood to embryo through tissue T and, one type of substance which passes from embryo to mother's blood.
(e) What happens to S when the baby is born? Why?
Rewrite the terms in the correct order so as to be in a logical sequence.
Implantation, ovulation, child birth, gestation, fertilisation.
Write two examples of sexually transmitted diseases caused by bacteria.
Draw a diagram of human female reproductive system and label the part.
(i) That produces eggs.
(ii) Where fusion of egg and sperm take place.
(iii) Where zygote is implanted.
What happens to human egg when it is not fertilized?
Explain how the sex of the child is determined at the time of conception in human beings.
In humans, sperm production occurs in the organ ______.
