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प्रश्न
Answer the following question.
What is contraception? List three advantages of adopting contraceptive measures.
उत्तर
Contraception includes methods or ways to prevent fertilization and pregnancy in a fertile female as a result of successful copulation between a fertile male and female.
Some of the major advantages of adopting various contraceptive methods include:
(i) Prevention of unwanted pregnancies
(ii) Help in family planning and population control
(iii) Some contraceptive devices like condoms and female diaphragm prevent the spread of STDs like AIDS and Hepatitis B.
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संबंधित प्रश्न
What is placenta?
The diagram shown below is the longitudinal section of a testis of man. Study it carefully and answer the questions that follow
(i) Label the parts numbered 1 to 3 in the diagram.
(ii) In which part of the testis are the sperms produced?
(iii) State the functions of the parts labelled 1 and 3 in the diagram.
Give appropriate biological/technical terms for the following:
The kind of twins formed from two fertilized eggs.
Describe in brief the structure of placenta
What changes are seen in boys at the time of puberty?
What is ovulation? How often does it happen in human females?
In human females, an event that indicates the onset of reproductive phase is :
(a) growth of body
(b) change in hair pattern
(c) change in voice
(d) menstruation
Choose the correct answer:
The aim of sexual reproduction _________
Rewrite the following terms in a correct and logical sequence:
The luteal phase, follicular phase, menstrual phase, ovulatory phase.
Choose the Odd One Out:
