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प्रश्न
How can plants and animals save themselves from extinction?
उत्तर
Genetic variation helps the organisms to adjust with the changing environment and thereby to maintain their existence. Due to this, plants and animals can save themselves from being extinct.
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संबंधित प्रश्न
When pregnancy does not occur, the life of corpus luteum is about ______.
Name the following:
Fusion of sperm and ovum.
Complete the following statement by choosing the correct alternative:
Fertilization occurs in ______.
Define the following:
Ovulation
Name two essential structures which take part in fertilization.
Differentiate
Isogametes and Heterogametes.
Differentiate
Tubectomy and Vasectomy.
Explain the term Cowper’s glands.
Write a short note on fallopian tube.
Explain the mechanism of fertilization in humans.
Define.
Fertilization
In human beings, after fertilisation, the structure which gets embedded in the wall of uterus is
In which part of the human female reproductive system do the following events take place?
Fertilization
What are autosomes chromosomes?
Name the parts of fallopian tubes.
Name the three main regions of the human sperm, and briefly mention the function of each.
Choose the odd one out from the group of terms given below and write the category for the remaining terms:
