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प्रश्न
Assertion (A): The foetus respires but does not breathe.
Reason (R): The maternal blood supplies oxygen to the foetus through placenta.
पर्याय
A is True and R is False.
A is False and R is True.
Both A and R are True.
Both A and R are False.
उत्तर
Both A and R are True.
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संबंधित प्रश्न
Differentiate between:
Follicle and corpus luteum
Name and describe very briefly, the stages in the development of human embryo.
Describe the functions of Amnion
Describe the functions of placenta
Explain the term Fetus
Complete the following sentences with appropriate word:
The period of complete development of the fetus until birth is termed ______.
Write the functional activity of the following structure:
Amnion
Which of the following reproductive structures is responsible for secretion of hCG?
Match the respiratory surfaces to the organisms in which they are found.
| Organ/ cells | Hormones | ||
| (i) | Corpus luteum | (a) | HCG |
| (ii) | Leydig's cells | (b) | Estrogen |
| (iii) | Placenta | (c) | Progesterone |
| (iv) | Graafian follicle | (d) | Testosterone |
Mother's blood flows into the foetus through placenta.
