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प्रश्न
Complete the following sentences with appropriate word:
The placenta is ________permeable
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उत्तर
The placenta is Selectively permeable
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संबंधित प्रश्न
Name the following:
The canal through which the testes descend into the scrotum just before birth in human male child.
Given below is the name of certain stage/substance related to reproduction and found in human body. Answer the questions related to it.
Hyaluronidase.
- Is it an enzyme or simply a protein?
- What is its function?
Given below are the names of certain stages/substances related to reproduction and found in human body. Answer the questions related to them.
Gestation
• What is its meaning?
• How long does it normally last?
Differentiate between:
Impotency and sterility
The diagram given below is that of a developing human foetus in the womb. Study the same and then answer the questions that follow:
- Name the parts '1' to '5' indicated by guidelines.
- What term is given to the period of development of the foetus in the womb?
- How many days does the foetus take to be fully developed?
- Mention two functions of the parts labelled ‘2’ other than its endocrine function.
- Name the hormone (anyone) produced by the part labelled ‘2’.
- What is the function of the part marked ‘3’?
Name the Following
How the embryo inside the uterus is protected from jerks or mechanical shocks.
Give Technical Term:
Name a membrane that surrounds the fetus and secretes a protective fluid.
During pregnancy, which hormones are secreted by the placenta?
How are carbon dioxide and urea, excreted by the foetus, removed?
Heart and blood vessels have been formed by the end of five weeks of pregnancy.
