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प्रश्न
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उत्तर
Amnion
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संबंधित प्रश्न
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.
The structure formed by the villi of the embryo and the uterus of the mother.
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.
Which part of the human body produces sperms?
fertilisation in humans can occur only once in a month. Why?
Explain why, a human zygote is more likely to grow into an adult than a frog zygote.
Draw a sectional view of human female reproductive system and label the following parts :
(i) Where the development of egg occurs.
(ii) Where fertilization takes place.
Choose the correct answer:
When pregnancy does not occur, the life of corpus luteum is about _____________
Distinguish between Vasa efferentia and Vasa deferentia.
Which of the following is an example of a secondary sexual characteristic in humans?
