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प्रश्न
How can plants and animals save themselves from extinction?
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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
Differentiate between:
Semen and sperm
Give appropriate term of the following:
The attachment of developing zygote (blastocyst) on the uterine wall.
Choose the correct answer:
Virgin birth is called ______________
Name the following:
Organ where fertilization occurs.
Name the following:
Virgin birth
The diagram given below is that of a developing human foetus in the womb. Study the same and answer the question that follow:
Mention two functions of the parts labelled '2' other than its endocrine functions.
Differentiate
Isogametes and Heterogametes.
Explain the Term Vas deferens.
Complete the following sentences with appropriate word:
The sperms in a human male are produced in _____.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Fertilization is the product of the egg nucleus and the sperm nucleus.
Which parts are converted into Seed and fruit respectively after fertilization?
What would be the effect if meiosis did not occur in nature?
Identify the function of fertilization membrane.
Which of the following occurs due to the process of capacitation?
Sperms undergo the following changes in the epididymis EXCEPT ______
In markets, eggs of birds are available but never eggs of dogs. why?
State whether the following statement is True or False. If false, correct the statement:
External fertilisation can occur both in water and on land.
Name the three main regions of the human sperm, and briefly mention the function of each.
