Please select a subject first
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- Write the formula and draw electron dot structure of carbon tetrachloride.
- What is saponification? Write the reaction involved in this process.
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In human females, an event that reflects onset of reproductive phase is
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Which among the following is not the function of testes at puberty?
- formation of germ cells
- secretion of testosterone
- development of placenta
- secretion of estrogen
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Which among the following diseases is not sexually transmitted?
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What changes are observed in the uterus if fertilisation does not occur?
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What changes are observed in the uterus subsequent to the implantation of a young embryo?
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In the given Figure label the parts and mention their functions
- Production of egg
- Site of fertilisation
- Site of implantation
- Entry of the sperms
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What is placenta? Mention its role during pregnancy?
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What are various ways to avoid pregnancy? Elaborate any one method.
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How does fertilisation take place? Fertilisation occurs once in a month. Comment.
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In human beings, the correct sequence of events during reproduction is
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Explain how the uterus and placenta provide necessary conditions for proper growth and development of the embryo after implantation?
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Give reason.
Placenta is extremely essential for foetal development.
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Give reason:
Uterine lining becomes thick and spongy after fertilisation.
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Why do soaps not work effectively in hard water?
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Given below is a certain situation. Analyze and describe its possible impact on a person:
Egg is not fertilised in a human female.
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Given below is a certain situation. Analyze and describe its possible impact on a person:
Placenta does not attach to the uterus optimally.
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List two roles of the Oviduct in the human reproductive system.
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What is meant by a power of a lens? Define its SI unit.
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