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प्रश्न
Choose the odd one in each of the following:
Seminiferous tubule; ovum; epididymis; sperm duct; urethra
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उत्तर
Ovum
संबंधित प्रश्न
Name the function of the following:
Fimbriae
After puberty human female shows cyclic changes in her reproductive system. Explain structural and hormonal changes in the uterus.
(OR)
Give reasons :
(1) Scrotal sac serves as thermoregulator.
(2) Corpus luteum gets converted into corpus albicans in absence of fertilization.
(3) Missing of menses is the first indication of pregnancy.
(4) Surgical sterilization is a permanent method of birth control. (5) Human egg is microlecithal.
The below diagram represents the sectional view of the female reproductive organs of a mammal.

(i) Label the parts numbered 1 to 7.
(ii) What are the main functions of the parts labeled 2, 5, 6?
A neat labelled diagram describes the parts of a typical angiospermic ovule.
______ pollen mother cells should undergo meiotic division to produce 64 pollen grains.
To answer the question, study the graphs below for Subjects 1 and 2 showing different levels of certain hormones.

Which of the following statements is true about the subjects?
The diagram given below shows a section of the human ovary.

- Name the process for the release of the part labelled 1.
- Write the name of the structure marked 2.
What do mammary glands produce to nourish the offspring after birth?
What are the clusters of milk-secreting cells within mammary lobes called?
What is formed when tubules of each mammary lobe join?
