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प्रश्न
State its functions in case of a pregnant human female.
उत्तर
Functions of the placenta:
- It provides food and oxygen to the foetus.
- The foetus gives away waste products and carbon dioxide to the mother’s blood for excretion.
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संबंधित प्रश्न
Name any three parts of the female reproductive system in human beings. Write one function of each.
Write the functions of the following parts in human female reproductive system:-
(i) Ovary
(ii) Oviduct
(iii) Uterus
Why is it an advantage for the testes to be situated in the scrotal sac outside the main body cavity? Can you think of one disadvantage?
The ratio of the number of chromosomes in a human zygote and a human sperm is ______
Explain how the sex of the child is determined at the time of conception in human beings.
Fill in the blank.
In humans, ------ chromosome is responsible for maleness.
Answer the following question.
What is contraception? List three advantages of adopting contraceptive measures.
Rewrite the following terms in a correct and logical sequence:
The luteal phase, follicular phase, menstrual phase, ovulatory phase.
Human eggs are______.
