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प्रश्न
Give two important unique features of the human reproductive system.
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उत्तर
(i) It has the longest reproductive phase.
(ii) There is no specific breeding season. It can take place at any time during the year.
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संबंधित प्रश्न
What are sexually transmitted diseases?
What do the testes in a man produce?
fertilisation in humans can occur only once in a month. Why?
What is the name of the narrow opening between the uterus and the vagina.
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?
Explain why, a human zygote is more likely to grow into an adult than a frog zygote.
Choose the correct answer:
Fertilization occurs in _____________
Differentiate on the basis of what is indicated in brackets :
The prostate gland and Cowper’s gland (the nature of secretion)
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| (i) Acrosome
(ii) Ovulation (iii) Sperm (iv) Menopause (v) Implantation (vi) Fertilization (vii) Contraception in males |
(a) Male gamete
(b) Oviduct (c) Uterus (d) Spermatozoa (e) Progesterone (f) Stoppage of the menstrual cycle (g) Sudden change in genes |
The male homologue of the female clitoris is ____________.
