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प्रश्न
Given below are the events in human reproduction. Write them in correct sequential order.
Insemination, gametogenesis, fertilisation, parturition, gestation, implantation
Given below are the stages in human reproduction . Write them in correct sequential order.
Implantation, Gametogenesis, Gestation, Parturition, Fertilization, Insemination.
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उत्तर
Gametogenesis, Insemination, Fertilisation, Implantation, Gestation, Parturition.
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संबंधित प्रश्न
List any four methods of contraception used by humans. State in brief two advantages of adopting such preventive methods.
List two functions ovary of human female reproductive system.
Describe the function of placenta.
What is the main difference between sperms and eggs of humans? Write the importance of this difference.
Write the site of fertilization and the part where the zygote gets implanted in the human female.
What could be the reasons for adopting contraceptive methods?
Given below are diagrams showing the different stages in the process of fertilisation of an egg. in the human female reproductive tract.
Study the diagrams and answer the questions:
1) Arrange the letters given below each diagram in a logical sequence to show the correct order in the process of fertilisation.
2) Where does fertilisation normally take place? and What is ‘Implantation’ that follows fertilisation?
3) Mention the chromosome number of the egg and zygote in humans.
4) Explain the term ‘Gestation’. How long does Gestation last in humans?
5) Draw a neat, labelled diagram of a mature human sperm.
Where in the human body does an ovum get fertilised?
Name the liquid that contains sperms.
Fill in the following blank with suitable word :
The menstrual cycle is controlled by.............
What are the male gonads in human beings?
Why does menstruation occur?
Which structure in human female is equivalent to the penis in the male?and in what respect the structures are equivalent?
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?
Explain why, a human zygote is more likely to grow into an adult than a frog zygote.
Describe the role of the following in human beings:
(i) Seminal vesicles
(ii) Prostate gland
Choose the correct answer:
The aim of sexual reproduction _________
Define the following:
Parthenogenesis
Label the folowing diagram
Differentiate on the basis of what is indicated in brackets :
The prostate gland and Cowper’s gland (the nature of secretion)
Name the Following
What does this abbreviation stand for LH?
Name the Following
What does this abbreviation stand for FSH?
Choose the Odd One Out:
Choose the Odd One Out:
Mention the importance of the position of the testes in humans.
How does human sperm locomote?
Human eggs are______.
