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प्रश्न
List two changes observed in girls at the time of puberty.
उत्तर
Two changes observed in girls at this stage are:
(i) Increase in breast size
(ii) Start of menstruation
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संबंधित प्रश्न
Write the site of fertilization and the part where the zygote gets implanted in the human female.
Mention the total number of chromosomes along with the sex chromosomes that are present in a human female and a human male. Explain how in sexually producing organisms the number of chromosomes in the progeny remains the same as that of the parents.
Choose the ODD one out from the following terms given and name the CATEGORY to which the others belong :
Prostate gland, Cowper’s gland, seminal vesicle, seminiferous tubules
Where is the male gamete formed in humans?
What is the name of the process in which thickened uterus lining alongwith blood vessels is removed from the body of a human female through vaginal bleeding?
In a flower, the parts that produce male and female gametes are respectively :
(a) sepal and anther
(b) filament and stigma
(c) anther and ovary
(d) stamen and style
Rewrite the terms in the correct order so as to be in a logical sequence.
Implantation, ovulation, child birth, gestation, fertilisation.
Correct sequence in development is ______.
Reproductive organs are also considered endocrine glands.
A zygote is formed by the fusion of a male gamete and a female gamete. The number of chromosomes in the zygote of a human is ______.
